IWORID 2025

Session

Poster

7 Jul 2025, 15:30

Bratislava, Slovakia

Conveners

Poster: Session 1

• Andrea Sagatova (Slovak University of Technology in Bratislava)

Poster: Session 2

• Andrea Sagatova (Slovak University of Technology in Bratislava)

11. Experimental validation of Geant4 simulation model for backscatter X-ray security scanner

Geunyoung An (Jeonbuk National University)

07/07/2025, 15:30

poster

The Customs Service performs X-ray security screening to prevent illicit articles from entering the country. The primary contraband products that are illegally distributed include unspecified forms of narcotics, explosives, and seeds. The challenge in detecting these contraband items using a conventional transmission X-ray inspection system alone stems from their tendency to be concealed as...

12. Performance Evaluation of Dual-Energy X-ray Screening System

Junsung Park (Jeonbuk National University)

07/07/2025, 15:31

poster

X-ray security screening is essential in high-security facilities such as airports and harbors. It can detect prohibited items and hazardous materials concealed in baggage. This screening process is critical to ensuring public safety. It enables the early detection and interception of dangerous items. Screening images taken with standardized test kits are commonly used to evaluate the...

22. Noise behavior in filtered backprojection for robot CT with arbitrary scan paths

Seungjun Yoo (Computational X-ray Imaging Laboratory, School of Mechanical Engineering, Pusan National University)

07/07/2025, 15:32

poster

Signal, noise, and their correlations– in space are fundamental for determining image quality. These can be characterized by modulation-transfer function (MTF) and noise-power spectrum (NPS), which are both Fourier metrics. The ratio of the squared MTF and the NPS is termed noise-equivalent quanta (NEQ) or detective quantum efficiency (DQE), commonly used to describe the performance of an...

83. Dual-energy subtraction efficiency of different X-ray detector designs

Junho Lee (Computational X-ray Imaging Laboratory, School of Mechanical Engineering, Pusan National University)

07/07/2025, 15:34

poster

Chest radiography is a widely used imaging modality for diagnosing and monitoring thoracic diseases due to its accessibility, cost-effectiveness, and relatively low radiation dose. However, conventional chest radiographs often struggle to differentiate overlapping anatomical structures, such as bones and soft tissues, which can obscure important pathological findings. To address these...

94. IN-VIVO CARBON-ION RADIOTHERAPY MONITORING USING HIGH RESOLUTION SECONDARY PARTICLE TRACKER

Carlos Granja (ADVACAM)

07/07/2025, 15:35

poster

The radiotherapeutic method of cancer treatment using precise beam of energetic carbon ions has many advantagescompared to the conventional X-ray radiotherapy. More precise dose delivery to the tumor spares the surrounding healthytissue which makes this method especially suitable for brain cancer treatment. However, this comes with an increasedsensitivity to deformations and displacements of...

102. Removing constraints of 4D STEM with a framework for event-driven acquisition and processing

Arno Annys (Electron Microscopy for Materials Science (EMAT), University of Antwerp, NANOlight Center of Excellence, University of Antwerp)

07/07/2025, 15:36

poster

Removing constraints of 4D STEM with a framework for event-driven acquisition and processing
Arno Annys1,2*, Hoelen L. Lalandec Robert1,2, Saleh Gholam1,2, Joke Hadermann1,2 and Jo Verbeeck1,2

1Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
2NANOlight Center of Excellence, University of Antwerp, Groenenborgerlaan...

120. Utilization of the fully spectral transmision X-Ray Diffraction in non-destructive testing of welds

Roman Nebel

07/07/2025, 15:37

poster

X-Ray Diffraction (XRD) in transmission mode is a powerful non-destructive technique for assessing the internal structure and residual stress in metallic components, with important applications in nuclear, aerospace, and petrochemical industries. Unlike conventional reflection mode, transmission XRD probes through the full material thickness, making it particularly valuable for evaluating...

165. CZT based spectrometers for environmental radiation measurements

Dr Matti Kalliokoski (Helsinki Institute of Physics (FI))

07/07/2025, 15:38

poster

Balloon-borne Instrument for Spectral Scanning of high-altitude Environments (BISSE) is a lightweight gamma-ray measurement setup that can be placed in standard weather balloons and can be retrieved after the flight [1]. The design allows multiple flights with a relatively small cost. The BISSE setup records automatically spectral information of radiation at different altitudes throughout its...

175. Comparative study of YSO, GaGG, and BGO scintillators coupled to a SiPM array for gamma-ray spectroscopy

Mr Sabuhi Nuruyev (Institute of Radiation Problems, Azerbaijan, & JINR)

07/07/2025, 15:39

poster

This study presents a novel gamma-ray detector module based on a 16-element MPPC-13360-3050 matrix (Hamamatsu) coupled with YSO, GaGG, and BGO scintillators, evaluating its performance across a 60 keV – 2500 keV energy range. Each 3×3 mm² SiPM element features a 1440 pixels/mm² density, 40% photon detection efficiency (at 470 nm), and operates at 55.5 V. The detector was characterized using...

188. Demonstrator detector for neutron imaging applications

Mila Myllymäki (Helsinki Institution of Physics (FI))

07/07/2025, 15:40

poster

To support the development and testing of detectors for Boron Neutron Capture Therapy (BNCT) and neutron imaging, we have constructed a compact neutron irradiation beamline at the Helsinki Accelerator Laboratory. The beamline includes a movable moderator/reflector assembly made of Teflon, aluminium and lead, which allows shaping the neutron spectrum to enhance specific energy ranges, such as...

182. Timepix4 Based Detection System with 1 mm CdTe Sensor: Calibration and Preliminary Spectral Imaging Application

Mr Alessandro Feruglio (INFN)

07/07/2025, 15:41

poster

Timepix4 is an Application-Specific Integrated Circuit (ASIC) developed by the Medipix4 Collaboration. It features a 448×512 pixel matrix, which can be bump-bonded pixel by pixel to pixelated semiconductor sensors of various materials and thicknesses, with a pixel pitch of 55 \textmu m. In ToA-ToT data-driven mode, data packets are generated only when the charge collected in a pixel exceeds a...

210. Thickness-dependent characteristics of silicon-based Medipix3RX detectors at Sirius beamlines

Luana Santos Araujo (LNLS)

07/07/2025, 15:42

poster

X-Ray imaging and diffraction techniques at Sirius [1], the fourth-generation synchrotron light source operated by the Brazilian Synchrotron Light Laboratory (LNLS) which is part of Brazilian Center for Research in Energy and Materials (CNPEM), frequently utilize hybrid pixel detectors. They consist of photon-counting devices encompassing a photo-active semiconductor sensor integrated with a...

203. Projection-based Metal Artifact Reduction in Spectral Photon-Counting Dental CBCT

Benjamin Berger

07/07/2025, 15:43

poster

While cone-beam computed tomography (CBCT) is the dominant modality in dentomaxillofacial radiology due to its balance of spatial resolution, cost, and radiation dose, it remains suboptimal for visualizing fine orofacial structures and is particularly prone to metal artifacts from implants and crowns. These limitations motivate the integration of photon-counting detectors (PCDs), which offer...

202. First CT Evaluation of a Novel Photon-Counting Detector Module for Clinical CTs

Lisa Marie Petzold (TUM - Chair of Biomedical Physics)

07/07/2025, 15:44

poster

Background:
Photon-counting computed tomography (PCCT) is a rapidly emerging imaging modality that offers significant advantages over conventional energy-integrating detectors (EIDs)-based CTs, such as improved image quality, spectral imaging, and dose and noise reduction. Developing a new photon-counting detector with four-side buttable technology and six energy bins enables CT systems that...

200. Spectral CT Imaging of a Lithium-Ion Battery Using Photon-Counting and Dual-Layer Detectors: A Comparative Study

Daniel Berthe (Technische Universität München, Chair of Biomedical Physics)

07/07/2025, 15:45

poster

Spectral imaging in industrial CT offers significant benefits for materials analysis and artifact reduction. In this study, we demonstrate that dual-layer energy-integrating detectors (DL EIDs) provide substantial improvements over conventional flat panel detectors (FPDs) in the spectral imaging of a commercial 18650 lithium-ion battery. Using a prototype dual-layer detector (XRD4343RF-DL,...

191. Development of Prompt Gamma-ray Imaging Detector for Boron Neutron Capture Therapy

Mr Yusuke Urano (Tohoku University)

07/07/2025, 15:46

poster

Boron Neutron Capture Therapy (BNCT) uses a nuclear reaction between boron atoms (10B) and neutrons to selectively destroy cancer cells from the inside. To estimate the treatment effect in real-time, the use of prompt gamma rays (478 keV) emitted by the 10B(n,α)7Li reaction has been proposed using a collimator. Although the collimator is able to detect the direction of incident gamma rays,...

205. Toward Reconstruction-Free PET: Progress in Direct Positron Emission Imaging (dPEI)

Dr Sun Il Kwon (University of California, Davis)

07/07/2025, 15:47

poster

Three-dimensional biomedical imaging techniques, such as X-ray computed tomography (CT), single-photon emission computed tomography (SPECT), and positron emission tomography (PET), acquire one- or two-dimensional projections of the object of interest. These projections are subsequently reconstructed into cross-sectional or volumetric images using analytic computed tomography algorithms. In all...

195. High frame rate RIXS spectroscopy using a JUNGFRAU detector with an iLGAD sensor

Marco Ramilli (European X-ray Free Electron Laser)

07/07/2025, 15:48

poster

Several experimental techniques make use of soft X-rays as a probe, commonly focusing on the energy range between a few hundred eV up to approximately 1 keV. This range is particularly relevant for the study of transition metals and light elements such as C, N and O, which are fundamental components of a large number of materials with intriguing electronic and magnetic properties, from...

218. Precise evaluation of energy dispersive X-ray diffraction data measured by Timepix3 detector for observation of dynamic phase transition in steel

Jan Jakůbek (ADVACAM s.r.o.)

07/07/2025, 15:49

poster

X-ray diffraction (XRD) is a versatile non-destructive analytical technique used to analyze crystalline properties of various materials. This technique requires collimated monochromatic X-ray beam that reflects at certain angles from the crystals within the sample. The reflection angles are specific for given crystal type and its orientation. A composition of materials containing multiple...

222. Aberration effects inherent in planar integrating detectors and their influence on imaging quality in diffraction experiments

Markus Kuster (Data Department, European XFEL GmbH, Holzkoppel 4, Schenefeld, Germany)

07/07/2025, 15:50

poster

Diffraction experiments using coherent X-ray radiation from light sources, such as X-ray free- electron lasers (XFELs), are essential for investigating the structural and functional properties of materials at the nanoscale. These sources deliver highly coherent, high-brilliance, pulsed X-ray beams that enable the detailed study of physical, chemical and iological systems. A key requirement...

198. Bayesian Deep Prior Denoising of XRF Maps Acquired Under Low Dose Constraints

Dr Francesco Guzzi (Elettra Sincrotrone Trieste)

07/07/2025, 15:52

poster

Low-energy X-ray fluorescence (XRF) mapping at synchrotron radiation facilities [1, 2] is often limited by acquisition time and dose constraints [3], especially for sensitive samples such as biological specimens or cultural heritage objects. Compressive sensing strategies [3] offer a way to mitigate these limitations by enabling spatial undersampling or by triggering dynamical decisional...

194. In-vivo double photon emission coincidence imaging of tumor-targeted polymeric micelles

Mr Boyu Feng (The University of Tokyo)

07/07/2025, 15:53

poster

We report a proof-of-concept study applying double-photon emission coincidence imaging (DPECI) to visualize polymeric micelle-based nanocarriers in a tumor-bearing mouse model. The micelles, formed via self-assembly of block copolymers, had an average diameter of approximately 30 nm. They were radiolabeled with DOTA-conjugated ¹¹¹In and administered intravenously, enabling passive tumor...

164. Characterization of a High Frame Rate Direct Electron Camera and Its Applications in CryoEM

Prof. Zhi Deng

07/07/2025, 15:54

poster

The paper presents characterization of the EMPIX (Electron Microscopy PIXel) [1] camera and its applications in cryoEM，including STEM, diffraction and ptychography. The camera consists of a hybrid silicon pixel detector, TEC and water cooling and the high bandwidth DAQ (data acquisition system) up to 82.5 Gbps. The detector consists of 128 x 128 array and the pixel size is 150 um x 150 um....

157. Searching for Alternative Gases in RPC Detectors: Performance Studies of Eco-Friendly Gas Mixtures

Mattia Verzeroli (Universite Claude Bernard Lyon I (FR))

07/07/2025, 15:55

poster

Resistive Plate Chamber (RPC) detectors used in CERN’s LHC experiments traditionally operate with a gas mixture containing C2H2F4 (R134a) and SF6, both of which are greenhouse gases with high Global Warming Potential (GWP). In Europe, the production of these fluorinated gases is being phased out, making the identification of environmentally friendly alternatives increasingly urgent.
This...

57. First Demonstration of the Three-Photon Absorption Transient Current Technique (3PA-TCT) for Timing studies in Irradiated and Non-Irradiated Double-Sided Column 3D Silicon Sensors

Prof. Gordana Lastovicka-Medin (Faculty of Natural Sciences and Mathemayics, University of Montenegro (ME))

07/07/2025, 15:56

poster

We demonstrate the application of the Three-Photon Absorption Transient Current Technique (3PA-TCT) for the characterization of 3D silicon column device, with an active thickness of 285 µm and pitch of 55 um, manufactured at IMB-CNM through the RD50 Common Project. The work presented in this contribution is done within the framework of the CERN DRD3 and CERN Rd50 Collaborations. To our best...

44. Advancements In LGAD Technology For Space Experiments: Insights From Recent Lab Measurements

Ashish Bisht (Fondazione Bruno Kessler (FBK))

07/07/2025, 15:57

poster

Low Gain Avalanche Diodes (LGADs) constitute the state-of-the-art in Minimum Ionizing Particles (MIP) timing measurements in High Energy Physics (HEP), providing a time resolution of about 30 ps. These detectors feature an active area of about a few mm$^2$ on a 50~$\mu$m thick silicon and are capable of withstanding fluence up to a few 10$^{15}$ n$_{eq}$/cm$^2$. Due to their exceptional timing...

5. Up-to-date test beam results of ATLAS ITk Pixel sensors and modules

Md Arif Abdulla Samy (University of Glasgow (GB))

07/07/2025, 15:58

poster

The ATLAS Inner Detector will be entirely replaced with a new all-silicon tracking detector (ITk) in 2026–2028 to meet the demands of the High Luminosity LHC (HL-LHC). The innermost region of ITk will be instrumented with 3D sensor technology at Layer 0 (L0), where the expected fluence reaches up to 2×1016 neq/cm², while the outer layers (L1–L4) will feature n-in-p planar hybrid modules with...

196. Dose rate dependence of TID Damage in front-end electronics for SLS 2.0

Viveka Gautam (PSI)

07/07/2025, 15:59

poster

The Swiss Light Source (SLS) is currently in the final stages of upgrading to
a diffraction-limited storage ring configuration, SLS 2.0. This upgrade will
significantly enhance the brilliance by up to two orders of magnitude. However,
it introduces new challenges for silicon detectors due to increased radiation
damage. A primary concern is the higher accumulated dose received by...

152. A large area gas proportional scintillation counter with a ring-shaped anode for x- and gamma-ray spectroscopy

Joaquim Marques Ferreira Dos Santos (Universidade de Coimbra (PT))

07/07/2025, 16:00

poster

Gas Proportional Scintillation Counters (GPSCs) are noble gas detectors in which the primary ionization charge generated by radiation interactions is amplified via electroluminescence (EL) in the gas. Under an external electric field, the primary electrons drift into a region where the field exceeds the gas scintillation threshold—known as the scintillation region. Compared to charge...

141. DQE analysis of CdTe and Si sensor Timepix3 detectors

Pinelopi Christodoulou

07/07/2025, 16:01

poster

In this study, the Detective Quantum Efficiency (DQE) was measured by calculating the DQE at zero- frequency, the modulation transfer function (MTF), and the noise power spectrum (NPS) for Timepix3 detectors equipped with 500 μm silicon (Si) sensor (biased to 200 V and threshold equal to 3 keV) and 1mm Cadmium Telluride (CdTe) sensor (bias equal to -300V and threshold set to 5 keV). By...

128. Study of temperature influence on Timepix2 energy measurements

Dr Petr Smolyanskiy (Czech Technical University in Prague (CZ))

07/07/2025, 16:02

poster

Timepix2 [1] is a hybrid pixel detector developed by the Medipix2 collaboration as the successor to Timepix [2]. Its introduction brought significant advancements, including the simultaneous measurement of Time-over-Threshold (ToT) and Time-of-Arrival (ToA), as well as new capabilities such as adaptive gain mode and pixel disabling to reduce power consumption. These features, combined with the...

125. ATLAS Inner Tracker Upgrade Strip Detector

Marta Baselga (Technische Universitaet Dortmund (DE))

07/07/2025, 16:03

poster

The inner detector of the present ATLAS experiment has been designed and developed to function in the environment of the present Large Hadron Collider (LHC). For the next LHC upgrade to High Luminosity, the particle densities and radiation levels will exceed the current levels by a factor of ten. The instantaneous luminosity is expected to reach unprecedented values, resulting in up to 200...

121. Optimization of Timepix2 Power Consumption and Spectroscopic Performance for Space Applications

Jace Beavers (Los Alamos National Laboratory)

07/07/2025, 16:04

poster

Low-mass, low-power radiation detectors are needed to monitor and predict space weather conditions for future crewed and autonomous space missions. The Compact Electron Proton Spectrometer (CEPS) combines Timepix2 ASIC technology with CdTe chips to form a small, portable, hybrid-pixel detector package capable of differentiating particle types and energies over a wide dynamic range in a...

63. Enhanced time resolution with a room-temperature energy dispersive X-ray PIN photodiode detector for improved EDX-EELS coincidence measurements in an electron microscope

Luca Serafini (EMAT)

07/07/2025, 16:05

poster

Although energy dispersive X-ray spectroscopy (EDX) and energy electron loss spectroscopy (EELS) can be acquired simultaneously with a transmission electron microscope (TEM), it is not a common practise. Most users do one at the time despite that the two data streams complement each other very well allowing to have both the high selectivity of EDX with the high energy resolution of EELS. By...

62. PIXCORE, a RISC-V microprocessor with an HPD management instruction set

Pawel Skrzypiec

07/07/2025, 16:06

poster

Hybrid Pixel Detectors (HPD) are commonly used for X-ray imaging in both industry and medicine [1-2]. To this day, many approaches have been developed for managing such devices, such as the use of personal computers or FPGAs. Currently, one of the most interesting ones is the integration of the readout electronics for an HPD with the RISC-V microprocessor on the same silicon substrates.

In...

54. Performance of triple-GEM detectors for the ME0 system of the CMS Phase-2 Upgrade

Felice Nenna (Universita e INFN, Bari (IT))

07/07/2025, 16:07

poster

The High-Luminosity LHC will deliver proton-proton collisions at 5-7.5 times the nominal LHC luminosity, with an expected number of 140-200 pp-interactions per bunch crossing. To maintain the performance of muon triggering and reconstruction under high-rate background, the forward part of the Muon spectrometer of the CMS experiment will be upgraded with Gas Electron Multiplier (GEM) detectors....

40. Muon shower tagging in the barrel muon system of the CMS experiment

Javier Prado Pico (Universidad de Oviedo (ES))

07/07/2025, 16:08

poster

For the HL-LHC era, the Phase-2 CMS upgrade will involve a complete replacement of the trigger and data acquisition system. The readout electronics will be enhanced to support a maximum Level-1 (L1) accept rate of 750 kHz with a latency of 12.5 µs. The muon trigger operates as a multi-layer system, designed to reconstruct and measure muon momenta by correlating data from muon chambers within...

27. Characterization of an IGZO flat-panel detector for image-guided CBCT radiotherapy

Dr Francesca Saveria Maddaloni (Università degli studi di Milano, Milano (Italy))

07/07/2025, 16:09

poster

Introduction
Indium Gallium Zinc Oxide (IGZO) thin-film transistor (TFT) flat panel detectors (FPDs) have the potential to overcome limitation of a-Si:H TFT detectors by avoiding the cost increase of CMOS technology [1-3]. Main advantages of IGZO-TFT FPDs when compared to a-Si:H TFT FPDs reside in the higher electrons (≥ 10cm2∕Vs vs. ≤ 1cm2∕Vs) and holes (~0.1 cm2∕Vs vs. ~0.0005 cm2∕Vs)...

75. Improving X-ray Detection Sensitivity Using Hybrid Active Layers of PBDB-T:ITIC and CdSe Core 2D Nanoplatelets

Mr Yeongbin Song (Department of Foundry Engineering, Dankook University)

07/07/2025, 16:10

poster

Jaewon Son1, Chanyeol Lee1, Yeongbin Song1, Junmo Yang1, Jungwon Kang1, 2, *
1. Department of Foundry Engineering, Dankook University, Yongin-Si, 16890, Gyeonggi-Do, Republic of Korea
2. Department of Convergence Semiconductor Engineering, Dankook University, Yongin-Si, 16890, Gyeonggi-Do, Republic of Korea
* Corresponding author: jkang@dankook.ac.kr

In recent semiconductor scaling,...

221. Numerical modelling of space-charge accumulation in gaseous detectors

Abhijit Pal (Department of Physics, School of Basic and Applied Sciences, Adamas University, Barasat, WB, India)

07/07/2025, 16:11

poster

Accumulation of space-charge in gaseous ionization detectors is a well-known phenomenon. Various signatures of its effects are observed experimentally in all sorts of gaseous detectors, starting from wire chambers, RPCs to MPGDs [1,2,3,4,5]. It is also known to have important consequences influencing avalanche to streamer transition [6], loss of efficiency and response uniformity [7] in many...

214. Studies of the scintillation yield emitted from GEM avalanches in He-40%CF4 admixtures with few percent of ethane or propane

Dr Cristina M. Bernardes Monteiro (LIBPhys-UC, LA-REAL, Department of Physics, University of Coimbra, PORTUGAL)

07/07/2025, 16:12

poster

An optical Time-Projection Chamber (TPC) using a He-40%CF4 gas mixture has been proposed for directional Dark Matter (DM) searches. The motion of the Earth around the Sun results in an anisotropic angular distribution of the WIMP relative to the gas target and, thus, relative to the nuclear recoils induced by WIMP collisions with nuclei which, together with the Earth rotation, enables an...

201. Feasibility Study on Ultra-high spatial-resolution X-ray Imaging using STED Technique

Shunsuke Kurosawa (Tohoku Univ. & Osaka Univ.)

07/07/2025, 16:14

poster

Observation of the dynamics for cell and its inside is required to reveal the mechanism of life activities; For example, how virus invade host cell, how liquid–liquid phase separation in the cell became to disorder. To observe such dynamics, high spatial-resolution of less than 50 nm is required, and X-ray is available for the in vivo imaging or Non-destructive Testing. To realize such high...

174. Silicon photomultipliers: new structures for improved radiation hardness

Fabio Acerbi

07/07/2025, 16:15

poster

Silicon Photomultipliers (SiPMs) are single-photon sensitive detectors that continue to attract increasing interest in several industrial and scientific applications that require fast detection speed, high sensitivity, compactness, insensitivity to magnetic fields and low bias voltages. In particular, the SiPMs are used in high-energy physics (HEP) experiments, and for the readout of...

168. Development of optical-guiding Tl:Cs3Cu2I5 crystal scintillator plates for high-resolution and high-sensitivity radiation imaging

Mr Yuhei Nakata (Graduation School of Engineering, Tohoku University)

07/07/2025, 16:16

poster

Scintillator-based radiation detectors are widely used to detect alpha, beta, gamma, X-rays, and neutrons for high-energy physics, non-destructive inspection, homeland security, resource exploration, and medical imaging applications. X-ray imaging, in particular, has been utilized in product inspection and developing battery materials, aircraft parts, and more. This has driven a strong demand...

160. In-situ Radiation Damage Study of Silicon Carbide Detectors subjected to Clinical Proton Beams

Daniel Radmanovac (Austrian Academy of Sciences (AT))

07/07/2025, 16:17

poster

4H-silicon carbide (4H-SiC) is an emerging wide bandgap detector material in high-energy physics due to its superior temperature stability and low dark current compared to silicon detectors. The wide bandgap of 4H-SiC makes it suitable for high-temperature applications and allows operation at room temperature even after irradiation.
These features, combined with SiC being insensitive to...

143. Radiation Damage Studies of 4H-SiC LGADs

Maria Marcisovska (Czech Technical University in Prague (CZ))

07/07/2025, 16:18

poster

Low-Gain Avalanche Detectors (LGADs) based on 4H-SiC are emerging as a promising technology for high-radiation environments due to their intrinsic radiation hardness, wide bandgap, and high breakdown field. In this work, we present results from a systematic study of radiation-induced degradation in 4H-SiC LGADs subjected to 24 GeV/c proton irradiation at the CERN IRRAD facility, with fluences...

131. Chromium compensated gallium arsenide sensor evaluation using photon counting readout electronics

Dr Juha Kalliopuska (Advafab Oy)

07/07/2025, 16:19

poster

Gallium arsenide is extensively studied for about seven decades as an excellent material for semiconductor lasers, LEDs, and microwave electronics. GaAs has noticeable advantages over silicon and Cd(Zn)Te for radiation detectors. Particularly GaAs has higher electron mobility compared to Si and Cd(Zn)Te; higher average atomic number compared to Si; and lower probability and energy of the...

68. Characterization and X-ray imaging of metal halide perovskite scintillator films for digital flat-panel detector

보경 차

07/07/2025, 16:20

poster

Digital flat-panel detectors with indirect method typically uses amorphous silicon TFT (thin film transistor) or silicon CMOS (complementary metal oxide semiconductor) matrix arrays integrated with various scintillators for many medical diagnosis, security and nondestructive examination. Scintillator material is an indispensable component of indirect X-ray detector, which converts high-energy...

67. Neutron and gamma radiation discrimination performance of novel eutectic scintillators

Kei kamada

07/07/2025, 16:21

poster

In recent years, scintillation detectors using inorganic solid scintillators containing 6Li have been increasingly employed owing to their ease of handling and radiation resistivity. In the past decade, inorganic solid scintillators containing Li, such as Ce or Eu:LiCaAlF6 (LiCAF) [1] and Ce:Cs2LiYCl6 (CLYC) [2], have been developed in addition to the traditional Li-glass scintillator for...

95. Performance Assessment of PbI₂ and PbO-Based Semiconductor Dosimeters in Ir-192 HDR Brachytherapy: Measurement and Simulation

Dr MOO JAE HAN (Seoul National University Bundang Hospital)

07/07/2025, 16:22

poster

High-dose-rate (HDR) brachytherapy using Iridium-192 (Ir-192) sources is widely adopted in the treatment of various cancers due to its ability to deliver concentrated radiation doses with high spatial precision. Accurate dose verification is essential in this modality to ensure both treatment efficacy and patient safety. In this study, we investigate the feasibility and performance of...

206. A Plugin-Based Architecture for Onboard Data Processing in Katherine Readout Systems for Timepix Detectors

Martin Farkas (University of West Bohemia (CZ))

07/07/2025, 16:23

poster

The Katherine readout system for Timepix3 (and to a smaller extent, Timepix2) is widely used within the scientific Medipix community. Timepix3, in particular, is a popular readout chip offering a resolution of 256×256 pixels with a 55 µm pitch, capable of measuring both energy and timestamps (with 1.56 ns time binning) simultaneously. It has already demonstrated excellent performance and...

192. Development of the CoRDIA pixel detector ASIC for high-speed X-ray experiments

David Pennicard

07/07/2025, 16:24

poster

CoRDIA is a pixel detector being developed for X-ray experiments at future synchrotron light sources such as PETRA-IV. The extreme brilliance of these sources will enable new experiments scanning the structure of complex objects on length scales from macroscopic down to single atoms. To enable these experiments, CoRDIA is being designed to perform continuous image taking at 150.000 frames/s...

190. Design of Distributed Multi-level Real-time Matching Algorithm for In-beam PET Readout System

Junwei Yan

07/07/2025, 16:25

poster

Heavy ion therapy is an advanced radiation treatment , and In-Beam Positron Emission Tomography (In-Beam PET, ib PET) is a non-invasive method for monitoring heavy ion tumor therapy. It provides rapid and accurate imaging of beam positioning and dose by identifying and sorting coincidence events of positron-electron annihilation in the irradiated area. This work presents a timestamp-based...

187. Testing of a 28 nm CMOS charge sensitive amplifier exposed to 1 Grad TID

Luigi Gaioni (University of Bergamo and INFN (IT))

07/07/2025, 16:26

poster

This work describes the design and the testing of a charge-sensitive amplifier (CSA) mainly conceived for the readout of hybrid pixel detectors in extreme radiation environments, as in the high-luminosity upgrades of the LHC or in future experiments at the FCC. Developed in a 28 nm CMOS process, the CSA features a feedback network to compensate for detector leakage current and operates at a...

184. Characterization of the ColorPix-2 ASIC Hybrid Pixel Readout Chip with CZT Sensors

Jan Broulim (Czech Technical University in Prague (CZ))

07/07/2025, 16:27

poster

In this contribution we present the first measurements of the characterization of the ColorPix-2 ASIC communicating with the UniCorn readout interface. ColorPix-2 is the ASIC consisting of 32x32 pixel matrix with the pixel pitch of 70 um. It is designed for high-resolution, position and color sensitive X-ray imaging. A 2 mm-thick CZT layer is bump-bonded and used as the sensing material,...

170. ColorPix3 ASIC: Design of a Hybrid Pixel Readout Chip for High-Resolution Spectroscopic Imaging with CZT Sensors

Zdenko Janoska (Czech Technical University in Prague (CZ))

07/07/2025, 16:28

poster

The ColorPix3 ASIC represents an advanced hybrid pixel detector design tailored explicitly for high-resolution, color-sensitive X-ray imaging. Developed using a 65-nm CMOS process, this ASIC integrates a pixel matrix comprising of 32×32 pixels, each sized at 70×70 µm², covering a sensitive area of 0.05 cm². In this technology demonstrator, the digital part of the readout system is being...

142. New photon-counting high energy resolution ASIC for laboratory diffraction

Mr Giuseppe Montemurro (DECTRIS AG)

07/07/2025, 16:29

poster

We are glad to present one of the latest developments of the R&D at DECTRIS: the novel ASIC ERMINE, a photon counting chip that is specifically designed for laboratory X-Ray Diffraction (XRD) applications.
ERMINE is a 192 x 256 pixels array with an active area of 14.4 mm x 19.2 mm and a pixel pitch of 75 µm. The ASIC’s two-side buttable design allows for larger sensitive areas with wider...

133. Modular High-Speed Digitizer Platform for Precision Timing and High-Rate Signal Capture

Tomas Kulhanek (University of West Bohemia (CZ))

07/07/2025, 16:30

poster

To meet the stringent demands of signal digitization in high-energy physics experiments, a universal high-speed digitizer module has been developed for precise acquisition of fast analog signals from various detector technologies. The system supports sampling rates of up to 20 GS/s in single-channel mode and 10 GS/s in dual-channel mode, offering 9 GHz analog bandwidth and 12-bit vertical...

104. Comparison of Two CMOS readout chains for a 330x330µm² pixel aiming at spectral CT medical applications

Daniel TRAN (CEA-Leti)

07/07/2025, 16:31

poster

Spectral Computed Tomography (CT) based on Photon-Counting Detectors (PCDs) is an emerging technology [1] that provides 3D images on multiple energy channels (typically between 2 and 8 energy bands). The main challenge for PCDs is to achieve good spectral accuracy while maintaining reliable performance at high-count rate.

The classic architecture of a PCD utilizes a CdTe crystal hybridized...

101. Designing 3-channel Solid-State Particles Detector for Multiple Radiation Sources

Ahti Elias Karjalainen (Lappeenranta-Lahti University of Technology (LUT), School of Engineering Science, Physics)

07/07/2025, 16:32

poster

Novel applications of fundamental particle detectors often require that the final device has a compact and lightweight design that offers more than one sensing mechanism covering a wide energy range. Radiation emitted from different radioactive sources often consists of various types of radiation (alpha, beta, gamma).

This article describes the design of an amplification and biasing...

59. Development of a HV-CMOS pixel sensor prototype in 55nm process for the LHCb Upgrade II Upstream Tracker

Dr Yang Zhou (Institute of High Energy Physics, CAS, Beijing, China)

07/07/2025, 16:33

poster

The LHCb Upgrade II, proposed for implementation during Long Shutdown 4 (LS4) of the LHC, aims to operate the detector at a maximum luminosity of 1.5 × 10³⁴ cm⁻²s⁻¹. This necessitates the Upstream Pixel tracker (UP) to achieve a detection efficiency exceeding 99% under extreme hit densities of up to 100 MHz, provide nanosecond-level timing resolution to precisely tag collisions occurring at 25...

51. Characterisation of a mixed-signal readout channel for x-ray science applications at fourth-generation synchrotrons

Mr Paolo Lazzaroni (University of Bergamo & INFN Pavia)

07/07/2025, 16:34

poster

The advent of fourth-generation synchrotron light sources carries both novel and compelling scientific opportunities, as well as new requirements for the instrumentation employed in detectors within such a framework. To address this challenge, a collaboration between Argonne National Laboratory, University of Pavia, and University of Bergamo devised a prototype readout to be utilised in x-ray...

2. CZT Detector Readout Electronics Design Prototype in Solar X-ray Observation Mission

Shen Wang (Purple Mountain Observatory)

07/07/2025, 16:35

poster

The X-ray Imaging Telescope (XIT) is one of the scientific payloads of the Solar Polar Observatory (SPO). It is primarily responsible for solar X-ray observations, enabling the monitoring of full-disk eruptive events and the acquisition of X-ray spectra for small-scale activities. The X-ray Imaging Telescope (XIT) plans to employ CdZnTe (CZT) detectors as the sensitive elements due to the...

139. Flash X-Ray Imaging in Impact Dynamics: A Comparison of TimePix Detector with Photodiode and High-Speed Camera Systems

Tomas Fila (Czech Technical University in Prague, Faculty of Transportation Sciences)

07/07/2025, 16:36

poster

This study investigates the imaging performance of the TimePix3 chip for high-speed X-ray imaging, with a focus on its potential application in impact dynamics, specifically in gas-gun experiments combined with a flash X-ray system. The flash X-ray system used is the MAT 300-4C (Scandiflash, Sweden), which generates four discrete X-ray bursts with an exposure time of 20 ns, within a voltage...

73. Development and Validation of an Improved Optical Fiber-Based Verification System for Spent Fuel Inspection in CANDU Reactors

Prof. Yong Hyun Chung (Department of Radiation Convergence Engineering, Yonsei University, Republic of Korea)

07/07/2025, 16:37

poster

ABSTRACT
At the Wolsong CANDU (CANada Deuterium Uranium) nuclear power plant in the Republic of Korea, 37-element CANDU fuel assemblies using natural uranium are employed. Due to the short burnup cycle of natural uranium, a relatively large amount of spent nuclear fuel is produced, necessitating safe management and timely verification of spent fuel inventories. To address this need, the...

166. X-ray Spectrum Estimation Using a Combined Deterministic-Stochastic Approach in Dual-Material Phantoms

Prof. Hyemi Kim (Department of Radiological Science, Jeonju University)

09/07/2025, 16:00

poster

X-ray spectrum estimation is essential for dose calculation, image quality optimization, and material decomposition in diagnostic radiology. This study implements and evaluates an X-ray spectrum estimation method based on the Birch-Marshall model with three advanced scatter correction techniques. Using a dual-material step wedge phantom composed of acrylic (0-60 mm) and aluminum (0-6 mm), we...

151. Investigating heavy ion radiation damage in Timepix3 detectors for applications in ion-beam therapy

Maike Saphorster (CERN / German Cancer Research Center DKFZ)

09/07/2025, 16:01

poster

Due to their ability to track single particles and measure energy deposition,Timepix detectors are successfully used for various research projects in particle therapy. Examples include the helium-beam radiography project or the estimation of LET spectra for ion radiation fields at the German Cancer Research Center (DKFZ) and the Heidelberg Ion-Beam Therapy Center (HIT) in Heidelberg, Germany....

149. Enhancing X-ray Absorption Spectroscopy with Time-Resolved Pixel Detectors

Ralf Hendrik Menk (Elettra Sincrotrone Trieste and INFN Trieste, Itay, Department of Computer and Electrical Engineering, Midsweden University, Sundsvall, Sweden)

09/07/2025, 16:02

poster

X-ray absorption spectroscopy (XAS) is a powerful technique for probing the local atomic structure of specific elements, providing crucial insights into oxidation states and atomic coordination environments [1]. Typically performed at a synchrotron light source, XAS involves scanning the incident X-ray energy across an element’s absorption edge while recording the transmitted intensity,...

148. Studies of ultrafast dynamics in substrate-free nanoparticles at ELI using Timepix3 optical camera

Dmitrij Ševaev (FNSPE CTU)

09/07/2025, 16:03

poster

We present a novel application of the Timepix3 optical camera (Tpx3Cam) for investigating ultrafast dynamics in substrate-free nanoparticles at the Extreme Light Infrastructure European Research Infrastructure Consortium (ELI ERIC). The camera, integrated into an ion imaging system based on a micro-channel plate (MCP) and a fast P47 scintillator, enables individual time-stamping of incoming...

145. Optimizing biplanar X-ray angles for deep learning-based CT reconstruction for accurate patient positioning in image-guided radiotherapy

Prof. Changwoo Seo

09/07/2025, 16:04

poster

Radiation therapy demands high precision in patient positioning due to its tumor-conformal dose distribution characteristics. Image-guided radiotherapy (IGRT) is employed to verify and ensure accurate patient positioning prior to treatment, thereby reducing uncertainties in the exact location of the planning target volume (PTV). Digital X-ray imaging, a common modality in IGRT, typically...

123. Enhancement of Radiation Detectors for Verification of CANDU-Type Spent Fuel

Dr Sung-Woo KWAK (Korea Institute of Nuclear Non-proliferation and Control)

09/07/2025, 16:05

poster

The Optical Fiber Radiation Probe System (OFPS), which utilizes an optical fiber-based scintillation detector, has been employed by inspectors from the International Atomic Energy Agency (IAEA) and South Korea to verify spent fuel bundles from CANDU-type heavy water reactors. To address challenges identified in previous studies, the OFPS is currently undergoing enhancements to improve its...

115. XRF mapping with polycapillary optics for assessing sulfonate distribution in impregnated CTMP fibers

Farangis Foroughi

09/07/2025, 16:06

poster

Uniform sulfonation using Na₂SO₃ is critical in chemithermomechanical pulp (CTMP) production for ensuring efficient processing and high product quality. However, achieving even distribution of sulfonate groups (–SO₃⁻) across wood fibers is challenging due to variability in wood chip size. To investigate sulfur(S) at the microscale, we developed a cost-effective X-ray fluorescence (XRF) imaging...

110. Optimizing AGIPD with Calibration: How Do We Keep a Billion Parameters Under Control?

Vratko D. Rovensky (European XFEL)

09/07/2025, 16:07

poster

The Adaptive Gain Integrating Pixel Detector (AGIPD) [1] is a hybrid pixel detector developed to cope with high dynamic range and megahertz repetition rates of the European XFEL. Its adaptive gain mechanism enables simultaneous detection of single-photon events and high-intensity X-ray signals. AGIPD’s adaptive gain combined with its ability to handle the unique time structure of European...

105. Timewalk correcting Timepix4 data for imaging resolution and particle identification

Nina Dimova

09/07/2025, 16:08

poster

The Timepix4 provides time of arrival (ToA) and time over threshold (ToT) information on detected events, which is used to improve its imaging capabilities. We present an evaluation of the correction of the ‘timewalk’ effect of a Timepix4.2 pixel detector ASIC, bump-bonded to a 300 um planar silicon sensor, performing time-of-flight-based particle identification, spatial resolution...

81. Machine Learning for Correcting Simulation Outputs in Alpha Particle Measurements with Hybrid Semiconductor Detectors

Kamilla Sabirzyanova (Advacam, Prague, Czeck Republic)

09/07/2025, 16:09

poster

Accurate modeling of alpha particle interactions in hybrid semiconductor detectors remains challenging, as standard simulation tools like Geant4 and Allpix Squared (CERN) often fail to simulate specific sensor and detector electronics responses. This results in discrepancies between simulated and experimental data, particularly in reproducing key features such as the "halo" effect surrounding...

79. Nanoscale Structured Illumination Microscopy with Extreme-Ultraviolet Ultrafast Transient Gratings

GINEVRA LAUTIZI (Università di Trieste, Dipartimento di Fisica)

09/07/2025, 16:10

poster

Visualizing nanostructures within macroscopic materials is fundamental to understanding their physical and chemical properties. Over the past decades, super-resolution techniques have revolutionized visible-light microscopy [1-3]. Among these, structured illumination microscopy (SIM) [4-6] provides a straightforward implementation to access a full range of spatial information limited by the...

78. Compact and autonomous radiation tracking unit for use in aviation

Karolína Melovská (Advacam)

09/07/2025, 16:11

poster

Space weather refers to the changing conditions in space, primarily caused by solar activity, ultimately affecting human activities on Earth and in space. The solar emissions interact with Earth's magnetic field and atmosphere, leading to disruptions in technology and communication systems. Severe solar storms can cause errors in digital electronics and disrupt high-frequency radio signals,...

69. Restoring low resolution response in phosphor-coupled X-ray detectors via diffusion deblurring network

Seokwon Oh (Computational X-ray Imaging Laboratory, School of Mechanical Engineering, Pusan National University)

09/07/2025, 16:12

poster

Phosphor-coupled or indirect-conversion X ray detectors are widely used in both industrial non destructive testing (NDT) and medical imaging. However, there is an inherent tradeoff between spatial resolution and conversion efficiency: detectors with a thin phosphor offer higher spatial resolution but suffer from lower X ray conversion efficiency, leading to higher quantum noise, whereas those...

66. Optimizing robot-CT trajectories for data completeness

Seungjun Yoo (Computational X-ray Imaging Laboratory, School of Mechanical Engineering, Pusan National University)

09/07/2025, 16:13

poster

Computed tomography (CT) generates 3D volumetric images by numerically processing projection views obtained from various angles, and is widely used both in medical and industrial fields. However, industrial CT faces challenges, such as limited field of view for large objects and severe photon starvation or metal artifacts. These artifacts can be reduced or eliminated by avoiding highly...

58. Characterization of a LYSO Crystal and SiPM Array-Based Detector for Radiation Source Localization

Prof. Gyuseong Cho (Korea Advanced Institute of Science and Technology)

09/07/2025, 16:14

poster

Radiation source localization is a critical technology in fields such as emergency response and nuclear decommissioning, where identifying the position of radioactive materials is essential for safety and operational efficiency. In such scenarios, compact and deployable systems are particularly important to enable rapid and flexible detection in constrained or hazardous environments. While...

37. Upper-limit resolving power of semiconductor X-ray detector materials: A cascaded-systems model of interaction-specific MTFs

Junho Lee (Computational X-ray Imaging Laboratory, School of Mechanical Engineering, Pusan National University)

09/07/2025, 16:15

poster

The modulation transfer function (MTF) is a critical metric for quantitatively assessing the contrast-transfer capability of X-ray imaging devices, particularly in terms of their ability to resolve fine details. Photon-counting detectors (PCDs), which use semiconductor sensor materials, typically exhibit superior MTF performance compared to scintillator-coupled detectors [1]. This is primarily...

31. A high energy-resolution pixelated ASIC chip designed for electron and X-ray microscopy

Hui Zhang (Institute of High Energy Physics), Zijun Xu

09/07/2025, 16:16

poster

The development of advanced Application-Specific Integrated Circuits (ASICs) for Scanning Transmission Electron Microscopy and X-ray Micro-CT has emerged as a crucial driver for achieving high-precision material characterization. In particular, acquiring 2D distribution of the electrons or X-ray photons along with measuring their energy is desired for imaging the chemical elements at...

25. Imaging detectors at MAX IV

Michele Cascella

09/07/2025, 16:17

poster

The MAX IV Synchrotron facility in Lund, Sweden, relies on a diverse array of over 30 specialized X-ray detectors and cameras that are essential for the operation of its experimental beamlines.

We will provide an overview of the detection technologies employed at the MAX IV Synchrotron, covering both the operational aspects and the supporting systems that enable their effective use.

We...

13. Deep Learning-Based Isotope Identification for Radiological Crime Scene Investigations Using Convolutional Neural Networks

Dr Konstantinos Karafasoulis (Hellenic Army Academy)

09/07/2025, 16:18

poster

Introduction

Accurate identification of radioactive isotopes is a critical task in nuclear security, environmental monitoring, and emergency response. Traditional gamma spectroscopy analysis relies on peak fitting, template matching, or expert-driven methods, which can struggle in low-resolution, low-statistics, and high-background environments. These challenges are particularly...

4. Dependence of Fast Neutron Imaging on Scintillators

Youngseok Lee (Korea Institute of Fusion Energy)

09/07/2025, 16:19

poster

Fast neutron imaging has emerged as a powerful tool for non-destructive testing, particularly in environments where traditional X-ray and thermal neutron imaging methods are limited. In this study, we investigate the feasibility of fast neutron imaging using a compact D-D neutron generator and the KSTAR tokamak as neutron sources. Various scintillators for fast neutrons were employed to...

212. Development of a Compact Electronics System for a Drone-Mounted Gamma Radiation Detector Aiming at Aerial Mapping and Surveillance

Joaquim Marques Ferreira dos Santos (University of Coimbra)

09/07/2025, 16:21

poster

This project presents a specialized gamma radiation detector electronics system optimized for aerial mapping, surveillance, and radiation safety applications. The drone-mounted design effectively addresses radiation safety requirements across challenging terrains and sensitive locations. We discuss the main features of the detector electronics, starting from powering the detector up to data...

173. Simulation and Tests of Multithreshold Charge Sharing Compensation Algorithm Implemented in SPC Readout Integrated Circuits Operating in Si and CdTe Pixel Detectors

Dr Miroslaw Zoladz (AGH University of Krakow)

09/07/2025, 16:22

poster

This paper presents the tests of the charge-sharing compensation algorithm implemented in the single photon counting readout integrated circuit for Si and CdTe pixel detectors. The multi-threshold pattern recognition algorithm with four energy thresholds was tested in 96 × 192 pixel matrix with 100 µm pixel pitch. With the readout pixel noise of only 124 el. rms and the threshold spread below...

167. SPECTRUM 1k – Single Pixel Counting Readout Chip with In-Pixel Energy Histogramming

Piotr Kmon (AGH UST Krakow)

09/07/2025, 16:23

poster

A new single photon-counting IC prototype called SPECTRUM1k with pixel matrix 40 × 24 and pixel pitch 75 µm is developed by the Microelectronics Group of the AGH University of Krakow as a solution for X-ray color imaging. The chip, produced in CMOS 40 nm technology, is made up of 960 individually configured pixels, each composed of an amplifier, an analog-to-digital converter, and 64 × 12-bit...

122. Development of an Innovative Real-Time Dosimetry Monitoring System for Heavy Ion Radiotherapy

Dr Lingling Liu

09/07/2025, 16:24

poster

Cancer is the second leading cause of mortality globally. As a critical technological approach in oncology treatment, radiation therapy is evolving from conventional radiotherapy to ultra-high dose rate radiotherapy (FLASH-RT). With the significant escalation in radiotherapy dose rates, real-time dosimetry monitoring faces the dual challenges of enhancing both response time and measurement...

65. Front-End Circuit Optimization of CMOS Pixel Detectors for High-Performance X-ray Polarization Measurements

Zhuo Zhou

09/07/2025, 16:25

poster

The Topmetal series CMOS pixel detectors employ metal electrodes for direct charge collection and have been widely adopted in gas pixel detectors (GPDs) for X-ray polarization measurements. The performance of these detectors, particularly in terms of dynamic range, event rate capability, and energy measurement accuracy, is critical to achieving high detection efficiency. This work presents a...

60. Development and Validation of a Readout Electronics System for Bragg Peak Range Detection

Mr Qianshun She (Institute of Modern Physics, Chinese Academy of Sciences), Ms Yuhan Dou (Institute of Modern Physics, Chinese Academy of Sciences)

09/07/2025, 16:26

poster

This study addresses the clinical demand for real-time localization of Bragg peaks in heavy-ion radiotherapy, overcoming the technical limitations of conventional readout electronics such as dead time and slow response. A multi-channel electronic readout system based on application-specific integrated circuits (ASICs) was developed. By integrating the high-precision digitalization chip...

53. A high throughput, radiation-hardened encoder/ decoder ASIC for the tracking system in HIAF

Chaojie Zou (Institute of Modern Physics, Chinese Academy of Sciences)

09/07/2025, 16:27

poster

The High-Intensity Heavy-Ion Accelerator Facility (HIAF) is a next-generation heavy-ion accelerator currently under construction in China. A compact, large-acceptance spectrometer equipped with silicon pixel detectors will be constructed at HIAF to detect final-state particles at high event rates. The pixel-based tracking system, a key component of the spectrometer, is designed to precisely...

48. Digital implementation of the Inverse Error Function for subpixel resolution algorithms in hybrid pixel detectors.

Mr Tomasz Litwinek (AGH University of Krakow)

09/07/2025, 16:28

poster

Hybrid pixel detectors are segmented devices used for X-ray detection that consist of a sensor attached to the readout electronics. Detectors working in single-photon counting mode process each incoming photon individually, have essentially infinite dynamic range and by applying energy discrimination they provide noiseless imaging [1].

To improve the resolution of the detector and allow...

41. A High-Precision Time Measurement Circuit for Pixel Detectors Using a Two-Stage Timing Scheme

Ni Fang

09/07/2025, 16:29

poster

Pixel detectors are widely used in high-energy physics experiments for their superior position resolution. In applications such as X-ray polarization detection and particle 3D trajectory imaging, precise time measurement is essential for event reconstruction and improving detection accuracy. These demands impose stringent requirements on the time measurement circuit, necessitating high...

29. Strip Sensor Readout Circuit for X-ray Spectroscopy: Design and Performance Evaluation

Ms Weronika Zubrzycka-Singh (AGH University of Krakow)

09/07/2025, 16:30

poster

X-ray imaging systems designed for X-ray spectroscopy, based on semiconductor strip sensors, have recently been a key research area. A major objective is to enhance spectroscopic and spatial resolution [1–3]. In spectroscopic applications, short-strip silicon detectors are widely employed due to their low capacitance and leakage current. Using a strip pitch below 100 μm enables high spatial...

26. Design and Implementation of Irradiation Test Circuit for Low grade HERD-TRD Components

Xiangwei Peng (Guangxi University)

09/07/2025, 16:31

poster

The High Energy Cosmic Radiation Detection (HERD) facility is scheduled for deployment on the China Space Station in 2027. A key load subsystem of the HERD, the Transition Radiation Detector (TRD), requires high-precision energy calibration and astronomical observations in the TeV energy range. However, the reliability of low-grade commercial off-the-shelf (COTS) chips used in the TRD under...

20. Design and Implementation of a screening platform for SAMPA ASIC in front-end electronics of HERD-TRD

Xin Sun (Institute of Modern Physics, Chinese Academy of Sciences)

09/07/2025, 16:32

poster

The High Energy Cosmic Radiation Detection (HERD) facility is one of several planned space astronomy payloads to be deployed onboard the upcoming China Space Station (CSS). HERD is expected to begin operation around 2027 and continue for approximately ten years. Among its key subsystems, the Transition Radiation Detector (TRD) is designed to calibrate the TeV energy spectrum of the Calorimeter...

216. Measurement of Dual-Component Attenuation Length in Square BCF-92 Wavelength-Shifting Fibers

Dr C. M. B. Monteiro (LIBPhys-UC, LA-REAL, Department of Physics, University of Coimbra, PORTUGAL)

09/07/2025, 16:33

poster

Wavelength Shifting (WLS) fibres shift UV/blue light to green, granting efficient scintillation conversion in the process. These fibres enhance detection accuracy in particle physics experiments due to reduced interference susceptibility, improving overall signal quality.
The attenuation length of WLS fibres, defined as the distance over which the signal is reduced by a factor of 1/e, is a...

186. Evaluation of CZT Detector Performance in Alpha and Gamma Spectrometry

Nikita Kramarenko (Helsinki Institute of Physics (FI))

09/07/2025, 16:34

poster

This work presents the results of performance studies conducted on 1.5 mm thick cadmium zinc telluride (CZT) detector structures with differing electrode configurations. The aim was to gain a better understanding of the correlation between the physical processes and the electrical and spectroscopic properties of the studied devices. We performed current-voltage (IV) and capacitance-voltage...

176. Radiation detection with Polycrystalline CVD Diamond Film: Effects of Film Thickness and Irradiation on Detector Performance

Dr Bohumir Zatko (Institute of Electrical Engineering, Slovak Academy of Sciences)

09/07/2025, 16:35

poster

Diamond is a highly attractive material due to its excellent chemical and physical properties, making it suitable for various applications, including heavy particle detection, neutron detection, and radiotherapy dosimeters. Atomic and mass numbers 6 and 12 are considered to be almost tissue-equivalent, providing an important advantage over alternative materials such as silicon. Although...

127. Study of the charge carrier properties of a pixelated 4H-SiC with Timepix3

Dr Petr Smolyanskiy (Czech Technical University in Prague (CZ))

09/07/2025, 16:36

poster

Recent advantages in the detector production have facilitated the manufacture of pixelated 4H-SiC detectors, which can be an alternative to silicon ones especially in the harsh radiation environment, or in the environment with high temperatures, where such sensors profit from their higher band gap. Moreover, thanks to an elastic scattering cross-section of carbon for fast neutrons the SiC...

119. Metal-oxide-semiconductor structures based on Ni/Y2O3/4H-SiC for alpha particle spectroscopy

Marcel Talacko (Institute of Electrical Engineering, Slovak Academy of Sciences)

09/07/2025, 16:37

poster

Silicon carbide belongs to the wide band gap semiconductor materials, and it is very perspective in the detection of various types of radiation. Another advantage is the commercial availability of high-quality crystalline material required for the preparation of radiation detectors. The 4H-SiC has the band gap energy of 3.23 eV at room temperature, breakdown voltage about 2×10$^6$...

108. JUNGFRAU Prototypes with iLGAD Sensors for Soft X-ray RIXS

Dr Viktoria Hinger (Paul Scherrer Institut)

09/07/2025, 16:38

poster

The recent development of inverse Low Gain Avalanche Diode (iLGAD) sensors with optimized thin entrance windows has made hybrid pixel detectors available for applications with soft X-rays. One promising use case is Resonant Inelastic X-ray Scattering (RIXS), which requires high statistics and multidimensional scans while being inherently photon-starved. The multi-kHz image rates and large area...

97. X-ray performance evaluation between Timepix based CdTe detector and scintillator film based CMOS flat panel imager

보경 차

09/07/2025, 16:39

poster

X-ray detections have wide applications in medical imaging, security inspection and scientific research. At present, the realized way of X-rays detector can be typically divided into two types, direct and indirect conversion method. Direct radiation detection based on semiconductors like CdZnTe, a-Se and metal halide perovskites, have experienced rapid development and the demonstration of...

76. Test of COFFEE2, the first 55nm High Voltage CMOS sensor prototype

Cheng Zeng (Chinese Academy of Sciences (CN))

09/07/2025, 16:40

poster

To meet the increasingly demanding requirements of future tracking detectors for the LHCb Upgrade II and the future Circular Electron-Positron collider, advanced detector technologies with enhanced hit density processing capabilities and superior radiation tolerance are essential. To study the sensor performance and electronic response in the next generation process of HV-CMOS, a sensor chip,...

46. 3D Doping Concentration Imaging of Silicon Sensors Using Backside Pulsing

Dr Xiangyu Xie (Paul Scherrer Institut)

09/07/2025, 16:41

poster

Mapping the distribution of dopants in three dimensions provides a deeper understanding of the characteristics of silicon sensors, such as depletion voltage, electric field distribution, and charge collection properties. A uniform distribution across a large sensor area and depth is essential for high manufacturing yield and device reliability. However, conventional measurement techniques face...

28. High-Z Sensors and AGIPD: First results

Debora Magalhaes Suarez (DESY)

09/07/2025, 16:42

poster

The Adaptive Gain Integrating Pixel Detector (AGIPD) is a hybrid pixel, large area detector tailored to the unique beam structure of the European XFEL [1]. The development is a collaborative effort of Deutsches Elektronen-Synchrotron (DESY), the University of Hamburg, the University of Bonn and the Paul Scherrer Institute (PSI) in Switzerland, and has been in operation with silicon sensors...

14. Gamma-ray imaging using a single segmented HPGe detector and a lightweight Pulse Shape Analysis (PSA) machine learning method

Antoine Corbel (CNRS or Unistra (Strasbourg university))

09/07/2025, 16:43

poster

Gamma-ray imaging based on Compton scattering typically requires a two-component system, consisting of a scatterer and an absorber. The present work explores an alternative approach using a single, segmented high-purity germanium (HPGe) detector from the Advanced GAmma Tracking Array (AGATA) [1] collaboration for reconstructing the position of a radioactive source. A key advantage of using a...

93. Development and evaluation of linear array type ring detector for patient dose delivery monitoring system in high dose-rate brachytherapy

Dr Moo-Jae Han (Seoul National University Bundang Hospital)

09/07/2025, 16:44

poster

High dose-rate brachytherapy (HDR-BT) is a treatment technique in which a radioisotope (RI) is directly inserted into the human body. This allows for minimizing the dose to surrounding critical organs while concentrating the radiation dose on the tumor tissue, resulting in high therapeutic efficacy. Treatment planning for HDR-BT is performed based on anatomical images including the clinical...

138. Metal artifact reduction in computed tomography using single-energy material decomposition-driven virtual monochromatic imaging

Mr Juyong Shin (Department of Radiation Convergence Engineering, Yonsei University, Wonju, Republic of Korea)

09/07/2025, 16:45

poster

Metal artifacts—arising from the interaction between the high-density metals and the X-ray beams— pose a significant challenge to computed tomography (CT) by degrading image quality and hindering accurate diagnosis and treatment planning. Although numerous metal artifact reduction (MAR) techniques have been proposed, none have achieved universal adoption due to their varying effectiveness,...

211. Towards a Compact Readout Device for Timepix4

Dr Pavel Broulim (University of West Bohemia (CZ))

09/07/2025, 16:46

poster

Timepix4 [1] is the latest readout chip in the Timepix family of detectors, developed at CERN within the Medipix collaboration. Compared to its predecessor, it offers higher resolution (512 × 448 pixels with a 55 µm pitch) and significantly improved Time-of-Arrival (ToA) performance, with time binning down to 195 ps. Timepix4 is also capable of handling extremely high hit rates — up to 2.5...

183. Performance Evaluation of Ultra-Thin Low Gain Avalanche Diodes (LGADs) for Fast Timing and 4D Tracking

Fasih Zareef (AGH University of Krakow (PL))

09/07/2025, 16:47

poster

Low-Gain Avalanche Diodes (LGADs) are advanced silicon sensors developed for the fast and precise detection of minimum ionizing particles (MIPs), offering promising performance for certain applications in high-energy physics experiments. Fabricated on thin silicon wafers—typically ranging from 20 to 50 microns in thickness—with internal gain that results in a high signal-to-noise ratio (SNR),...

169. SpacePix Chip Development from VZLUSAT-2 Flight to SpacePix3 Laboratory Characterization

Radek Novotny (Czech Technical University in Prague (CZ))

09/07/2025, 16:48

poster

We report on the evolution of the SpacePix chip series designed for compact, high-resolution space radiation detection. The SpacePix2-based system was deployed onboard the VZLUSAT-2 nanosatellite and successfully operated in low Earth orbit, collecting in-situ data on the radiation environment over several months. The detector demonstrated stable operation, directional sensitivity, and the...

156. Characterizing cross-talk in linear SPAD array and harnessing it for system calibration

Lou-Ann PESTANA DE SOUSA

09/07/2025, 16:49

poster

In this work, we present a detailed study of cross-talk in a linear single-photon avalanche
diode (SPAD) array using the LinoSPAD2 detector, which features 512 time-resolved
channels with a timing precision of 40 ps r.m.s. By characterizing and leveraging cross
talk effects, we were able to calibrate the intrinsic delays in the system readout, reducing
the uncertainty in the position of...

107. Title： The Layer 0 upgrade of the AMS-02 experiment on the ISS

Qinze Li (Chinese Academy of Sciences (CN))

09/07/2025, 16:50

poster

Abstract:

AMS-02 is a multipurpose particle physics detector installed on the International Space Station. The objective includes search of dark matter, the primordial anti-matter, and the origin and propagation of cosmic rays. L0 (Layer 0) is a double-layer plane of silicon strip detector to be installed on AMS-02, which increases the acceptance of cosmic rays by 300% and significantly...

98. aare – A Flexible Data Analysis Library for Hybrid Pixel Detectors

Erik Fröjdh (Paul Scherrer Institut)

09/07/2025, 16:51

poster

The data rates of hybrid pixel detectors are rapidly increasing, with next-generation systems moving from 10 Gbit/s to 100 Gbit/s readout. For Matterhorn, a new single-photon counting detector under development at PSI, a 16-megapixel configuration would generate data rates of up to 3.2 Tbit/s (or 400 GB/s). These high data rates are not only a challenge for beamline operation but also make...

88. A comparative response study of a Medipix3 Silicon Sensor Detector using X-rays and Electrons

Rory Mcfeely (University of Glasgow)

09/07/2025, 16:52

poster

The Medipix3 hybrid pixel detector has found use globally, with applications such as colour x-ray CT scanners and electron microscopy detectors. These detectors are typically characterised using x-rays, either at a synchrotron facility, or using x-ray flouresence. While this is a convenient and well understood characterisation method, as the application range of these detectors broadens it is...

82. Design of electronics readout system based on zero compression and threshold comparison algorithm

Dong chunlai

09/07/2025, 16:53

poster

This paper presents Cosmic X-ray Polarization Detection-Topmetal-M2 (CXPD-M2), a CubeSat electronic system based on the Topmetal-M2 pixel chip, specifically designed for X-ray polarization detection in the 2–10 keV energy range. The CXPD-M2 system comprises both hardware and firmware. The hardware, developed under stringent power and space constraints, adopts a three layer electronic board...

80. Design and Evaluation of CZT-based Micro-activity Calibration System for TAT Application using Monte Carlo Simulation

Seoyun Jang (Korea Advanced Institute of Science and Technology)

09/07/2025, 16:54

poster

A novel dose calibrator based on CZT detector has been designed to accurately measure low-level activities that conventional dose calibrators cannot reliably measure. In order to ensure that the dose delivered to the patient is what is intended in radiopharmaceutical therapies, dose calibrator is a priory. Errors in exact activity measurement would otherwise result in overdose or underdose...

71. Modelling of Silicon Drift Detectors using a full-stack Energy Dispersive X-Ray Spectroscopy Simulation

Jurgen Snijders (Sioux Technologies)

09/07/2025, 16:56

poster

Energy Dispersive X-Ray Spectroscopy (EDS) is a well-established chemical element analysis method with applications in material characterization, device testing, biosciences, forensics, food science and many more. In EDS, characteristic X-rays are generated by hitting a sample with an electron beam. These X-rays are then captured by a Silicon Drift Detector (SDD), where the photon energy is...

64. Testing setup of IntPixel hybrid X-ray detector with on-chip and in-pixel artificial neural network

Mateusz Jurczak (AGH)

09/07/2025, 16:57

poster

ABSTRACT

We present a testing setup for a hybrid pixel array (HPAD) radiation detector with an on-chip and in-pixel Artificial Neural Network (ANN). The setup takes advantage of the IC design, which supports testing of it’s individual blocks, and allows for full characterization of the IC as well as facilitates training of per-pixel ANN.

The setup is dedicated to testing of an...

36. Description of ME0 GEM Detectors for the Phase-2 Upgrade of the CMS experiment at the LHC

Bhawana Chauhan (Panjab University (IN))

09/07/2025, 16:58

poster

The CMS experiment at CERN is foreseen to receive a substantial upgrade during Long Shutdown-3 (LS3) to handle the large number of pileup events in the High-Luminosity LHC. The objective is to increase the integrated luminosity by a factor of 10 beyond the LHC design value (~10^34 cm⁻² s⁻¹). The CMS just commissioned the Gaseous Electron Multiplier (GEM) detector, namely GE1/1, at the endcap...

35. Simulation of MPGD based Hadron Calorimeter HCal for future Muon Collider

Mr Muhammad Ali (Universita e INFN, Bari (IT))

09/07/2025, 16:59

poster

This contribution presents a detailed GEANT4 based simulation study of the
MPGD-HCAL prototype. The simulation implements the geometry of the prototype that
is going to be tested under pions beam in November 2025 at PS facility at CERN. The
prototype consists of 12 layers of alternating stainless steel absorber and the MPGD.
The first 8 layers...

34. Performance and long-term ageing studies on Eco-Friendly Resistive Plate Chamber detectors

Michael Tytgat (Vrije Universiteit Brussel (BE))

09/07/2025, 17:00

poster

Resistive Plate Chambers detectors are extensively used in several domains of Physics. In High Energy Physics, they are typically operated in avalanche mode with a high-performance gas mixture based on Tetrafluoroethane (C2H2F4), a fluorinated high Global Warming Potential greenhouse gas.
The RPC EcoGas@GIF++ Collaboration has pursued an intensive R&D activity to search for new gas mixtures...

24. Progress in experimental setup and reconstruction algorithms in RIPTIDE

Samuele Lanzi (Universita e INFN, Bologna (IT))

09/07/2025, 17:01

poster

Tracking imaging systems have evolved from manual analysis to advanced photodetectors, such as SiPM arrays and CMOS cameras, enabling the conversion of scintillation light into digital data for precise physical measurements. This study presents RIPTIDE, a recoil-proton track imaging system for fast neutron detection. The system employs a plastic scintillator where fast neutrons scatter...

21. MDA Assessment of Liquid Radioactive Waste for On-Site Application using CeBr3, LaBr3(Ce), and NaI(Tl) Scintillators

JAEHYUN PARK

09/07/2025, 17:02

poster

On-site gamma spectroscopy enables real-time decision-making by measuring radionuclide concentrations without sample extraction, reducing environmental and human-induced errors. While NaI(Tl) scintillators are widely used for field applications, they suffer from poor energy resolution compared to High-Purity Germanium (HPGe) detectors, making isotope identification challenging. To overcome...

17. BabyMOSS stitched sensors: results of characterisation tests for ALICE ITS3 upgrade

Alessandro Sturniolo (University of Messina - INFN Catania)

09/07/2025, 17:03

poster

During the Long Shutdown 3 (LS3, scheduled 2026-2030), the innermost 3 layers (Inner Barrel, or IB) of the present ALICE ITS2 will be replaced with 6 large-area, flexible, stitched CMOS 65 nm sensors, in the framework of the ITS3 upgrade project. For the first time in a High Energy Physics experiment, such large-scale sensors will be bent into a truly half-cylindrical shape, requiring little...

9. Design Optimization of Neutron Scatter Imager for Carbon Beam Range Verification

HAYOUNG SIM (Jeonbuk National University)

09/07/2025, 17:04

poster

Carbon-ion radiotherapy (CIRT) is capable of delivering a precise dose distribution using the Bragg peak. However, the generation of secondary neutrons and the uncertainty of the beam range can potentially affect the efficacy of the treatment and could also result in damage to surrounding organs at risk (OAR). In order to ensure patient safety, it is essential to accurately characterize...

6. Empirical Testing of Gamma Emission Tomography to Inspect Partial-defects within Spent Nuclear Fuel of Pressurized Water Reactor

Naufal Wafa Nabila Aliyas (일반대학원 방사선융합공학과) Bella

09/07/2025, 17:05

poster

Nuclear power plant generates electricity by nuclear fission reactions, from which Spent Nuclear Fuel (SNF) and radioactive waste are inevitably generated. Since SNF includes 235U, 239Pu, and fission products, the effective management and supervision techniques are necessary for non-proliferation of nuclear materials. The IAEA has conducted Safeguards activities using varying non-destructive...

45. Design of a Time-over-Threshold Bilinear Front-End for Photon Science Applications with High Dynamic Range in 28 nm CMOS

Andrea Galliani (Università degli Studi di Bergamo)

09/07/2025, 17:06

poster

In the context of the so-called PRIN 2022, funded by the Italian Ministero dell’Università e della Ricerca, the project Front-end channels in a 28 nm CMOS process for Pixel detectors in future High Energy physics colliders and advanced X-ray imaging instrumentation (PiHEX) has, as one of its objectives, the development of ASIC prototypes for modern photon science applications, which require...

118. Backside Pulse Processing for Energetic Particle Detection with Timepix2

Stuart Patrick George (NASA Johnson Space Center)

09/07/2025, 17:07

poster

Timepix is a hybrid pixel detector used to measure mixed radiation fields. Several Timepix-based instruments are currently used on the International Space Station, as part of the Artemis program on the Orion Spacecraft, the Gateway lunar space station, and the Lunar Human Landing System, and on various scientific missions such as Polaris Dawn. New space-based instruments are being developed...