The Back-n White Neutron Source at CSNS (China Spallation Neutron Source) has advantages of high flux and wide energy spectrum, which makes it a powerful facility for nuclear data measurement and neutron resonance transmission imaging. To promote the applications, a project, Multi-purpose Time Projection Chamber (MTPC), was proposed by the CSNS Back-n group. The MTPC, using Micromegas Detector...
The observation of gamma rays in the MeV energy band is crucial to astronomical research. There are fantastic scientific opportunities on dark matter detection, cosmic ray physics and gamma-ray astronomy via MeV gamma ray observations. MeV Gamma ray Telescope (MeGaT) is a new generation of high-resolution space MeV gamma ray detection telescopes by using Time Projection Chamber (TPC)...
The Apparatus for Mesons and Baryon Experimental Research (AMBER, NA66) is a high-energy physics experiment at CERNโs M2 beam line at the Super Proton Synchrotron (SPS). Its broad physics program extends beyond 2029. Measurements of the anti-proton production cross-section on He, proton, and Deuterium to support the dark matter searches, the charge-radius of the proton to contribute to the...
Spurious signals caused by microdischarges are a known effect inherent to all gaseous detectors, namely micropattern gaseous detectors. During the reconstruction in imaging and tracking detectors, such as time projection chambers (TPC), these signals are added to the actual track-generated signal as extra pixels or clusters, compromising the performance of the detector. We study the capability...
The former Outer Tracker of LHCb/CERN based on gas-filled straw-tubes has been kindly donated to GSI for further use in experiments at GSI and at the Facility for Antiproton and Ion Research (FAIR) and predominantly in PANDA, the anti-Proton ANnihilation in DArmstadt.
This formidable gaseous tracking detector of LHCb employed in LHC Run 1 and Run 2 performed continuously and above...
The ฮผTPC (micro time projection chamber) is a working mode in MPGD which has mm-level gas gap for particle energy deposition. Similar to TPC, the ฮผTPC method measures the signal time of each readout channel and calculates the corresponding drift distance. By reconstructing the track segment in the gas gap, the spatial resolution is significantly better than that of the charge centroid method,...
This presentation introduces a Time Projection Chamber (TPC) system based on Micromegas, designed for low background ฮฑ and ฮฒ detection. The system comprises a TPC and an anti-coincidence Micromegas detector, both manufactured using a thermal bonding method. Additionally, the system includes a power module, front-end electronics, and back-end electronics, all integrated to achieve high...
Micromegas detectors have been widely studied and applied in high-energy physics experiments due to their advanced performances such as high spatial resolution, high counting rate, radiation resistance, and cost-effectiveness, since its invention in the 1990s. In response to the performance requirements of different experiments, high-performance, large-area Micromegas detectors and their mass...
The large area and high spatial resolution of particle detection are important aspects in the research and application of MPGD. Currently, there is no satisfactory technological solution to address these challenges, particularly in achieving long-term stable, high-resolution readout of large area detectors, and managing high irradiation background and counter rates. In this study, we utilized...
The Super ฯ-Charm Facility (STCF) is a high-luminosity electron-positron collider under development in China, following the BEPCII. The STCF requires better particle identification for charged hadrons within its energy range, necessitating a โฅ3ฯ resolution for ฯ/K identification at momentum ranges of 2GeV/c and below. To meet these stringent requirements, a Cherenkov detector has been selected...
SU-8 is a high-contrast, epoxy-based photoresist designed for micromachining and other microelectronic applications where a thick, chemically, and thermally stable image is desired.ฮผGroove is a high-performance single-stage MPGD featuring a groove amplification pattern, typically fabricated by chemical etching. In this study, we present the process of ฮผGroove with smaller amplification units...
Cosmic ray muons tomography is a nonโdestructive imaging technique that uses the natural radiation of cosmic ray muons to create tomographic images of objects. Here presents a novel imaging algorithm that effectively utilizes experimental measurement data to achieve rapid and clear imaging of cosmic ray muons. A clear image can be obtained with only 20 min of measurement time and approximately...
Muon imaging technology is an innovative imaging technique that can be applied in volcano imaging, heavy nuclear material detection, and archaeological research. The Micromegas detector is a promising choice for muon imaging due to its high spatial resolution and large area. However, the large number of readout channels poses a challenge for electronics. A highly integrated front-end...
To meet the needs of high count rate and high time resolution in future high energy physics experiments, a prototype of gas photodetector with RPC structure was developed. Garfield++ simulated the detector's performance, and the single photoelectron performance of different mixed gases was tested with an ultraviolet laser. The detector uses a low resistivity () float glass so that it's rate...
This report presents an investigation on the calibration of anode plate of the Multi-purpose Time Projection Chamber (MTPC). MTPC mainly acquires the energy of the emitted particles from the responsed pad. The energy information on the pad mainly depends on the gain uniformity. Therefore, it is necessary to calibrate the electron avalanche gain and the energy resolution of MTPC. The Micromegas...
The multi-purpose time projection chamber (MTPC), which is designed for measuring neutron nuclear data of varied field, is fabricated at China Spallation Neutron Source (CSNS). Its drift region is flexible, ranging from 70mm to 150mm. Ionization electrons are avalanched and collected via a resistive Micromegas detector with 1521 readout channels. As timing precision plays an important role in...
Mirco Pattern Gaseous Detector (MPGD) plays a vital role in particle detection at The Heavy Ion Research Facility in Lanzhou and the High-Intensity Heavy Ion Accelerator Facility. The MPGD has amplification structures of a few micron meters. However, the pad size of the readout plane does not match the high granularity due to limitations on the integration level of readout electronics. To...
Abstract
Micro-Pattern Gas Detectors are cost-effective, enabling large-area, continuous charged-particle detection with less detection material. Their wide application and rapid development raise the demand for high sensitivity, integration, and resolution. Silicon pixel detector ASIC can be used as readout circuits for Micro-Pattern Gas Detectors, enabling accurate measurement and fast...
The High-energy Fragment Separator (HFRS), which is currently under construction, is a leading international radioactive beam device. It will significantly enhance the experimental capability in the medium-heavy nuclear region. Given the high-energy and high-intensity properties of HFRS, it is imperative to implement a highly reliable identification of nuclides at high counting rates (โผ10 MHz)...
The High Energy cosmic-Radiation Detection facility (HERD) is a part of the Chinese Cosmic Lighthouse Program in Chinaโs Space Station, which will be launched in 2027. HERD is expected to work 10 years in orbit and will indirectly detect dark matter, measure cosmic rays and observe high-energy gamma rays. As a sub-detector of HERD, the transition radiation detector's (TRD) main scientific goal...
Nuclear physics using radioactive beams has been the most dynamic research area in nuclear science. A High Intensity Heavy-Ion Accelerator Facility (HIAF) is currently under construction, and a cutting-edge High Energy Fragment Separator (HFRS) with high energy and intensity capabilities is being installed. HFRS is an important facility in the HIAF, located between BRing and SRing, with a...
Muography is a method for scanning a target object by analyzing how it interacts with muons. Indeed, the interaction mode depends on the energy of the incident muon, as well as the characteristics of the medium participating in the interaction. Electromagnetic interaction between cosmic muons and the atoms of the target object causes the trajectories of cosmic muons to deviate before reaching...
Prototypes capable of detecting UV photons using photocathode vapors and their characterization data are well-documented in the literature. However, no research has been found that explores the impact of different vaporization methods of these gas-phase photocathodes on their quantum efficiency and signal production capabilities. In this study, Ethylferrocene (EF) and TMAE photocathode vapors...
