# International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2012)

2-7 September 2012
Hotel Listel Inawashiro, Inawashiro, Japan
Japan timezone
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Displaying 113 contributions out of 113
Type: ORAL Session: Session5
Track: Front end electronics and readout - 3D interconnection
We describe our current efforts in sensor/electronics integration, including 3D and SOI devices. Application of these technologies to track triggers for CMS and Atlas as well as x-ray imaging will be described. A central question is whether these technologies will be sufficiently affordable with high enough yield to build large area modules such as those required for CMS. We will discuss the de ... More
Presented by Marcel TRIMPL on 5 Sep 2012 at 09:40
Type: ORAL Session: Session4
Track: Front end electronics and readout - 3D interconnection
Abstract Large-scale integration (LSI) technology in two dimensions has been the norm over the past three decades. However, the industry is now rapidly moving into the era of sub-20-nm nodes, and continuation of the present scaling trend will require the introduction of new transistors with three-dimensional (3D) structures and new materials and processes. This is expected to dramatically incre ... More
Presented by Makoto MOTOYOSHI on 4 Sep 2012 at 15:00
Type: POSTER Session: Session5
Track: Front end electronics and readout - 3D interconnection
Geiger-mode avalanche photodiodes (GAPDs) offer excellent qualitites to meet the challenging requirements of the next generation of particle colliders. High sensitivity, fast timing response, virtually infinite gain and compatibility with standard CMOS technologies are some of the properties that make these devices so attractive. In fact, owing to to their extraordinary sensitivity and picosecond ... More
Presented by Ms. Eva VILELLA-FIGUERAS on 5 Sep 2012 at 10:40
Type: ORAL Session: Session3
Track: X-ray imaging applications - Material Science
We have developed a silicon avalanche-photodiode (Si-APD) array detector for time-resolved measurements using pulsed synchrotron X-rays. The Si-APD detector had 64 pixels of a linear array, where the pixel size was 100 μm by 200 μm with a 50-μm gap between pixels and a depleted thickness was 10 μm. The detector system was equipped with 64-channel front-end ASICs, FPGAs and SiTCP (a network pro ... More
Presented by Prof. Shunji KISHIMOTO on 4 Sep 2012 at 09:20
Type: ORAL Session: Session3
Track: X-ray imaging applications - Material Science
At the Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory (LBNL) several experiments are performed in the soft X-ray regime with energy ranging from a few hundred to a few thousand electron volts (eV). In such applications, back-illuminated, direct detection in silicon using conventional microelectronics silicon wafer thicknesses (up to 650um), is close to 100% efficient for ener ... More
Presented by Dionisio DOERING on 4 Sep 2012 at 09:40
Type: POSTER Session: Poster session
Track: Data reconstruction and algorithms - Pattern recognision and imaging
Selecting interesting events with triggering is very challenging at the LHC due to the busy hadronic environment. Starting in 2014 the LHC will run with an energy of 14 TeV and instantaneous luminosities which could exceed 10^34 interactions per cm^2 and per second. The triggering in the ATLAS detector is realized using a three level trigger approach, in which the first level (L1) is hardware base ... More
Presented by Naoki KIMURA on 4 Sep 2012 at 15:20
Type: POSTER Session: Poster session
Track: Pixel technologies - Monolithic detectors
In the SOI process developed by KEK and LAPIS, transistors can be divided into two groups by their nominal power supply, 1.8V and 2.5V respectively. All the past integrating SOI chips use 1.8V transistors in core circuit and 2.5V in IO buffers. To verify the idea of increasing dynamic range of integrating charge, a chip using 2.5V transistors in core circuit was submitted to MPW run in 2011. The t ... More
Presented by Yasuo ARAI on 4 Sep 2012 at 15:20
Type: ORAL Session: Session4
Track: Pixel technologies - Monolithic detectors
The Silicon On Insulator (SOI) technology allows the integration of CMOS electronics on a thin silicon layer which is electrically insulated from the wafer substrate by means of a thin buried-oxide layer (BOX). Monolithic pixel sensors can be built in SOI technology by contacting a high-resistivity handle wafer substrate through the BOX. A commercial deep-submicron SOI CMOS process by LAPIS, coupl ... More
Presented by Serena MATTIAZZO on 4 Sep 2012 at 14:20
Type: POSTER Session: Poster session
The Semi-Conductor Tracker (SCT) is a silicon strip detector and one of the key precision tracking devices in the Inner Detector of the ATLAS experiment at CERN LHC. The SCT is constructed of 4088 silicon detector modules for a total of 6.3 million strips. Each module is designed, constructed and tested to operate as a stand-alone unit, mechanically, electrically, optically and thermally. The mod ... More
Presented by Koichi NAGAI on 4 Sep 2012 at 15:20
Type: ORAL Session: Session1
Track: Opening and Closing
The speech on the recent nuclear accident focuses on “what went wrong” and “what lessons are universal”. As is well recognized in the nuclear safety regime, prevention of radiological impact to human and environment as a consequence of nuclear reactor accident follows the basic philosophy of defense-in-depth consisting of five layers of defense, of which the first three by design, the ... More
Presented by akira OMOTO on 3 Sep 2012 at 09:00
Type: ORAL Session: Session4
Track: Pixel technologies - Monolithic detectors
CMOS image sensors have been widely applied to various fields in this decade by the great improvements of basic performances such as sensitivity, noise and resolution. Recent CMOS image sensors have achieved the pixel pitch of about 1μm, the number of pixels of 40 million or more and the input conversion noise of about 1 electron. CMOS image sensor has come to exceed CCD image sensor greatly in t ... More
Presented by Shigetoshi SUGAWA on 4 Sep 2012 at 13:30
Type: ORAL Session: Session2
Track: Particle physics applications - High Energy Physics
The latest advances in the design and characterization of several pixel sensors developed to satisfy the very demanding requirements of the innermost layer of the SuperB Silicon Vertex Tracker will be presented in this paper. The SuperB machine is an electron positron collider operating at the Y4S peak to be built in the very near future by the Cabibbo Lab consortium. A pixel detector based o ... More
Presented by Dr. Eugenio PAOLONI on 3 Sep 2012 at 13:50
Type: ORAL Session: Session8
We performed edge and surface TCT measurements of a double sided 3D silicon strip detector at the Jozef Stefan Institute. Double sided 3D devices are a useful counterpart to traditional planar devices for use in the very highest radiation environments. The TCT techniques allow the electric fields in 3D devices to be probed in a way not possible before. Short 3D strip detectors, produced at CNM ... More
Presented by Graeme Douglas STEWART on 7 Sep 2012 at 08:30
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Material Science
Since polymers mainly consist of the light atomic elements, the transmission of polymers against X-rays is usually too high to be visualized in X-ray microscopy, and hence, it has been considered that the polymers are not suitable for the X-ray computerized tomography (XCT). We calculate the X-ray absorption coefficients of various polymers and find the reasonably good conditions for the XCT obser ... More
Presented by Dr. Sueki BABA on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Medicine
Introduction: In cardiac PET/CT, coronal calcium scoring CT (CCSCT) not only is a noninvasive assessment of the presence and location of calcified plaque but also could provide as attenuation correction (AC) maps. However, the optimal radiation dose saving of CCSCT scan has not been studied. The purpose of this study is to determine optimum imaging parameters for attenuation correction in PET/CT b ... More
Presented by YU-XIANG GUAN on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: Particle physics applications - High Energy Physics
Results on a beam test of n-in-p silicon strip sensors aimed for the ATLAS SCT(Semi-Conductor Tracker) upgrades for High Luminosity LHC(HL-LHC) are presented. This Beam test was operated with a new DAQ system consisting of a universal read-out board called 'SEABAS'and a beam tracking system with the spacial resolution less than 5 micro meters, and held at RCNP in December 2011. Behaviors of the ne ... More
Presented by Tomonori KUBOTA on 4 Sep 2012 at 15:20
Type: ORAL Session: Session1
Track: Particle physics applications - High Energy Physics
The core of the CMS experiment is a three layers pixel detector. Installed in 2008 the CMS pixel system is essential for track seeding and reconstruction of secondary vertexes. The Pixel detector was designed for a peak luminosity of 1E34 cm-2s-1. The presentation will summarize the operational experience of the first three years of collisions at the LHC. We will present the measured performance e ... More
Presented by Alessandro GAZ on 3 Sep 2012 at 10:50
Type: ORAL Session: Session3
Track: X-ray imaging applications - Material Science
This study describes a CdTe pixel detector development for the next generation high energy X-ray diffraction experiments at synchrotron radiation facilities. In such applications, a high stopping-power semiconductor material for the sensor and an X-ray photon counting capability for the ASIC are required. A Custom-designed ASIC (SP8-02) has been developed with TSMC 0.25 micron CMOS process, where ... More
Presented by Toko HIRONO on 4 Sep 2012 at 10:50
Type: POSTER Session: Poster session
Track: Pixel technologies - Monolithic detectors
The use of different semiconductor technologies in the field of particle detector has been always limited by the effects of radiation in both the sensors and the processing circuitry. Large numbers of research teams are evaluating the use of different technological approaches to minimize the impact of radiation in new developments by using new detector material, connections and read-out architectu ... More
Presented by Paula Liliana ALVAREZ RENGIFO on 4 Sep 2012 at 15:20
Presented by Bernd SCHMITT on 7 Sep 2012 at 11:30
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Medicine
Introduction: In the fields of heart failure diagnosis, expect for the evaluation of heart valve abnormality, the myocardial wall motion is another important indication which has been concluded in many studies. Cardiovascular magnetic resonance (CMR) imaging provides highly reproducible data of myocardial deformation. Recently, the cardiac computed tomography (CT) imaging technique has become a ne ... More
Presented by Mr. Yang-Hsien LIN on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Medicine
Purpose: The solid-state detector is the novel γ-camera to reduce patient’s imaging time and radiation dosage in nuclear cardiology. However, there was a discrepancy of optimal acquisition protocol between Thallium-201 and Tc-99m radionuclide in many literatures. The aim of this study was to compare new ultrafast cadmium-zinc-telluride (CZT) camera with conventional SPECT using anthropomorphic ... More
Presented by Prof. Tung-Hsin WU on 6 Sep 2012 at 15:10
on 6 Sep 2012 at 19:00
Type: POSTER Session: Poster session
Track: Data reconstruction and algorithms - Pattern recognision and imaging
SPring-8 experimental Data Repository system (SP8DR) has been developed to support the handling of the experimental data. High brilliant x-ray at the SPring-8 produces large quantities of data with a high data rate in a short time. It is difficult to manage experimental data conjunction with the experimental conditions without data management system. SP8DR manages a lot of experimental conditions ... More
Presented by Sakai HISANOBU on 4 Sep 2012 at 15:20
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Astronomy
We are constructing an endoscope coupled with radiation detector, and its real time radiation imaging system. The imaging system is based on Compton camera composed of a digital signal-processing unit with ASIC and FPGA and reconstruction algorithm using spherical harmonics that can compute in real time. Acquired data are immediately transferred to a host PC and computed by a reconstruction algori ... More
Presented by Yasuaki NAKAMURA on 6 Sep 2012 at 15:10
Type: ORAL Session: Session6
Track: Pixel technologies - Monolithic detectors
Reliable data on the ionising radiation environment are regarded as very important to ensure an efficient design and operation of spacecraft. Engineering such sensors, and their cost, anyway, still represents a limitation to their widespread adoption. Here we present a Highly Miniaturised Radiation Monitor (HMRM), developed by the Science and Technology Facilities Council and Imperial College Lond ... More
Presented by Nicola Carlo GUERRINI on 6 Sep 2012 at 11:00
Type: ORAL Session: Session6
Track: Pixel technologies - Monolithic detectors
The Arachnid collaboration has been set up in the UK to develop CMOS Monolithic Active Pixel Sensors. The first device of this collaboration is named Cherwell. The Cherwell device consists of several arrays of pixel optimised either for vertexing or for calorimetry. For the former, two subarrays were designed. The first one has 96x48 pixels on a 25 um pitch. Each pixel consists of a low-noise 4T p ... More
Presented by James Edwin MYLROIE-SMITH on 6 Sep 2012 at 09:40
Type: POSTER Session: Poster session
Track: Pixel technologies - Hybrid pixels
For experiments at the European X-Ray Free-Electron Laser (XFEL), an Adaptive Gain Integrating Pixel Detector (AGIPD) system is under development. The particular requirements for the detector are a high dynamic range of 0, 1 - to more than 1E4 12.4 keV photons per pixel within a XFEL pulse duration of < 100 fs and a radiation tolerance of doses up to 1 GGy for 3 years of operation. The sensor ... More
Presented by Thomas POEHLSEN on 4 Sep 2012 at 15:20
Type: ORAL Session: Session3
Track: X-ray imaging applications - Material Science
The Super Advanced X-ray Emission Spectrometer (SAXES) at the Swiss Light Source contains a high resolution Charge Coupled Device (CCD) based camera used for Resonant Inelastic X-ray Scattering (RIXS) [1]. Using the current CCD based camera system, the energy-dispersive spectrometer has an energy resolution (E/ΔE) of approximately 12000 at 930 eV [2]. A recent study [3] predicted that through an ... More
Presented by Matthew SOMAN on 4 Sep 2012 at 09:00
Type: ORAL Session: Session3
Track: X-ray imaging applications - Material Science
TBD
Presented by Takaki HATSUI on 4 Sep 2012 at 08:30
Type: ORAL Session: Session4
Track: X-ray imaging applications - Astronomy
We have been developing a novel active pixel sensor, X-ray SOIPIX (Silicon-On-Insulator Pixel Sensor), for a future X-ray astronomical mission. It offers wide-band and high-time-resolution imaging spectroscopy with a low non-X-ray background rate. The most distinguished feature of X-ray SOIPIX is an intra-pixel trigger system for the timing detection. We have so far demonstrated that prototype ... More
Presented by Mr. Shinya NAKASHIMA on 4 Sep 2012 at 14:40
Type: POSTER Session: Poster session
Track: Data reconstruction and algorithms - Pattern recognision and imaging
X-ray 2D detectors are indispensable for synchrotron radiation and X-ray free-electron laser experiments such as coherent x-ray imaging, spectroscopies, time-resolved experiments etc. In these experiments, spatial, temporal, or photon energy information are projected onto X-ray 2D detector surface. It is generally accepted that larger pixel number and higher dynamic range will provide clearer info ... More
Presented by Choji SAJI on 4 Sep 2012 at 15:20
Type: ORAL Session: Session4
Track: Pixel technologies - Monolithic detectors
This work presents the design and characterization of a CMOS monolithic active pixel sensor manufactured in a commercial 65 nm process. The sensor is our first prototype in this technology for next generation, ultra-high resolution and radiation-hard direct detectors for electron and X-ray imaging, and follows previous developments in 0.35 µm and 0.18 µm CMOS processes. The chip features square ... More
Presented by Peter DENES on 4 Sep 2012 at 16:20
Type: POSTER Session: Poster session
The pixel detector of the ATLAS will be replaced at the future upgrade of LHC to keep the performance at high luminosity operation. For the upgrade, the sensor modules have been developed by using new front-end chips (FE-I4). Since design of the FE-I4 chip is different from the chip used for the current pixel detector, new DAQ system is necessary to read the sensor modules. For that reason, we hav ... More
Presented by Jia Jian TEOH on 4 Sep 2012 at 15:20
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Material Science
SPring-8 Angstrom Compact free-electron LAser (SACLA), which is the second X-ray free-electron laser (XFEL) facility after LCLS at SLAC National Accelerator Laboratory achieved laser amplification on June 7th, 2011. In the first user run of SACLA starting in March 2012, 25 proposals from domestic/international institutions will be conducted, where more than half of the proposals will use the curre ... More
Presented by Mr. Motohiko OMODANI on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Medicine
We demonstrate an x-ray detector with dual amorphous-Selenium (a-Se) layer using optical switching readout for high-speed x-ray imaging. The x-ray detector consists of a negative voltage bias electrode, a thick a-Se layer for photoelectric conversion of x-ray photons, an As2Se3 layer as an electron-trapping layer for accumulating a latent image, a thin a-Se layer for optical readout, an opaque-, a ... More
Presented by Dr. Ryun Kyung KIM on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: Pixel technologies - Hybrid pixels
KEK KENS-DAQ group is developing several neutron detectors and readout systems. 2 systems are developed by using a ZnS/6LiF neutron scintillator and MPPC (Multi Pixel Photon Counter: a semiconductor light sensor). One is named M-PSD (MPPC position-sensitive detector) which uses charge-division method like the 3He-PSD [1,2]. Therefore a NEUNET (neutron network) system [1] which is widely used in t ... More
Presented by Mr. Setsuo SATOH on 4 Sep 2012 at 15:20
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Astronomy
Since an X-ray CCD, especially a Back-Illuminated-CCD (BI-CCD), has a high detection efficiency for UV light and visible light as well as soft X-ray, it is necessary for the X-ray CCD on board X-ray satellite to block visible light and UV light that become background. The X-ray CCD cameras on board previous X-ray satellites, Suzaku, Chandra and so on, are equipped with the Optical Blocking Fi ... More
Presented by Takayoshi KOHMURA on 6 Sep 2012 at 15:10
Type: POSTER Session: Poster session
Track: Pixel technologies - Monolithic detectors
A Sillicon-On-Insulator (SOI) technology is suitable for vertex detector for high energy physics experiments since complex functionalities can be fabricated on the SOI wafer with small material thanks to the monolithic structure. We developed a new sensor processing scheme "PIXOR(PIXel OR)" for pixel detectors using a Lapis 0.25um SOI process. An analog signals from each pixelated sensor is divi ... More
Presented by Yoshimasa ONO on 4 Sep 2012 at 15:20
on 4 Sep 2012 at 19:00
Type: ORAL Session: Session1
Track: Opening and Closing
We measured the ambient dose-rate and the deposition amount of radioactive cesium by using four helicopters in the whole area of Japan to investigate the influence of the radioactivity that released in the atmosphere due to the disaster of the Fukushima Daiichi NPP (Nuclear Power Plant), Tokyo Electric Power Company (TEPCO), occurred by Tohoku-Pacific Ocean Earthquake and tsunami on March 11, 2011 ... More
Presented by Dr. Yukihisa SANADA on 3 Sep 2012 at 09:30
Type: ORAL Session: Session3
Track: Pixel technologies - Monolithic detectors
EIGER is the next generation single photon counting x-ray detector developed at Paul Scherrer Institut for synchrotron based applications. It is a hybrid silicon pixel detector that features a 75x75 um2 pixel size, a high maximum frame rate capability of ~22 kHz (independent on the detector size), double buffered storage for continuous readout and a negligible dead time between frames of ~3-4 us. ... More
Presented by Dr. Roberto DINAPOLI on 4 Sep 2012 at 11:10
Type: ORAL Session: Session7
We have been developing novel n$^{+}$-in-p pixel and strip sensors that are highly radiation-tolerant, having a planar" electrode geometry, utilize p-type silicon wafers, and being read out from highly doped n$^{+}$ implants. Our goal of the radiation level is in the range of $10^{15}$ and up to 2 $\times$ 10$^{16}$ 1-MeV-neutron-equivalent (n$_{\rm eq}$)/cm$^{2}$ of the particle fluence, appro ... More
Presented by Yoshinobu UNNO on 6 Sep 2012 at 16:10
Sazae-do, Tsukuga-jo Castle, Restaurant "Takino". This event is supported by Dectris.
on 5 Sep 2012 at 12:30
Type: ORAL Session: Session5
Track: Front end electronics and readout - 3D interconnection
With the planned upgrades of the LHC for higher than present luminosity, the ATLAS pixel detector will be confronted to higher hit rate. R&D for the inner layers of the future ATLAS pixel detector has started in the direction of smaller feature size CMOS bulk processes, as well as in the direction of the new possibilities offered by 3D integration technologies. In this presentation, a report will ... More
Presented by Laura GONELLA on 5 Sep 2012 at 10:00
Presented by Yoshinobu UNNO on 7 Sep 2012 at 12:00
Type: ORAL Session: Session3
Track: X-ray imaging applications - Medicine
The applications of x-ray imaging in the medical field are manifold and range from computer tomography (CT), radiography, angiography to mammography. Depending on the application, the x-ray systems support diagnostic and/or interventional procedures and generate 2D (projection) or 3D (volumetric) data sets. The performance requirements for the different application can vary strongly with respect t ... More
Presented by Martin SPAHN on 4 Sep 2012 at 10:20
Type: ORAL Session: Session4
The European X-ray Free-Electron Laser Facility will generate extremely brilliant, ultra-short pulses of X-rays, imposing challenging constraints to the detectors to be used in the experiments. It is expected to have a peak brilliance of 10^33 ph/(s mm^2 mrad^2 0.1%BW), 9 orders of magnitude more than 3rd generation synchrotron sources. The flux will be such that many pixels will have to cope with ... More
Presented by Alessandro MARRAS on 4 Sep 2012 at 17:00
Type: ORAL Session: Session5
The performance of the LHC accelerator at CERN has been outstanding since its startup in 2010. It seems likely that the delivered instanteneous luminosity exceeds its design value of $10^{34}$ cm$^{-2} s$^{-1}$soon after the recommissioning in 2014. Tracking in such a dense environment is challenging. This is especially true for the main tasks of the pixel detector such as b-tagging. In order to ... More Presented by Dr. Hans-Christian KAESTLI on 5 Sep 2012 at 09:00 Type: ORAL Session: Session8 Track: Pixel technologies - 3D sensors Vertex detectors for the next LHC experiments upgrades will need to have low mass while at the same time be radiation hard and with sufficient granularity tu fulfill the physics challenges of the next decade. Based on the gained experience with 3D silicon sensors for the ATLAS IBL project and the ongoing developements on light materials, interconnectivity and cooling, this paper will discuss possi ... More Presented by Dr. Cinzia DA VIA on 7 Sep 2012 at 09:10 Type: POSTER Session: Poster session Track: Data reconstruction and algorithms - Pattern recognision and imaging An accurate description of the geometry and material density in modern particle detectors becomes ever more critical as the mass of these devices decreases, and the detectors aim to be sensitive to low pt physics. An example in point is the LHCb VELO upgrade, where the pixel planes at the upgrade will be situated very close to the beam line, but separated from the primary vacuum by a thin foil wi ... More Presented by Jan BUYTAERT on 6 Sep 2012 at 15:10 Type: POSTER Session: Poster session Track: X-ray imaging applications - Material Science The SLS Detector group at PSI has developed GOTTHARD, a charge integrating silicon strip detector which, thanks to the automatic gain switching feature, can provide at the same time single photon resolution and a dynamic range as big as 10000 12~keV photons, with a noise well below the photon statistics limit over the full range. The detector module is made of ten readout ASIC (Application Spe ... More Presented by Dr. Roberto DINAPOLI on 6 Sep 2012 at 15:10 Type: POSTER Session: Poster session Track: Pixel technologies - Monolithic detectors A monolithic pixel detector with a 0.2 um fully-depleted Silicon-On-Insulator (SOI) technology, called SOIPIX, has been developed. These are utilizing thick handle wafer of SOI structure as a radiation sensor to detect charged particles and X-ray. One of the detectors, called INTPIX4, is 10.3 x 15.5 mm in size having 512 x 832 (~426 k) pixels each 17 um square. It has integration type pixels and ... More Presented by Mr. Ayaki TAKEDA on 4 Sep 2012 at 15:20 Type: ORAL Session: Session4 Track: Pixel technologies - Monolithic detectors We are developing monolithic pixel detectors in 0.2 um Fully-Deleted SOI technology. In a SOI wafer, the photodiode is formed on the handling substrate after removing the silicon oxide. The SOI-CMOS circuits are fabricated on the 40-nm SOI thin film. Since the bump-bonding process is not required, a high-gain pixel sensor with smaller pixel size less than 20 um is achievable. In general SOI-C ... More Presented by Dr. Toshinobu MIYOSHI on 4 Sep 2012 at 14:00 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors High voltage particle detectors in commercial CMOS technologies are detector family that allows implementation of low-cost, thin and radiation-tolerant detectors with good time resolution. The unique property of these detectors is that the pixel electronic is embedded inside sensor diodes. For this reason, we refer to the detector type as the "smart diode” array - SDA. In the R/D phase of the de ... More Presented by Dr. Ivan PERIC on 6 Sep 2012 at 09:00 Type: ORAL Session: Session3 Track: Pixel technologies - Monolithic detectors This paper reviews the device and circuit technologies for low-noise CMOS image sensors(CISs) and discusses their future prospect. The first innovation in the low-noise CISs has been done by the CMOS active pixel sensor (APS) using an amplifier and a pinned photodiode in each pixel. The in-pixel amplifier eliminates a large stray capacitance in the signal detection and increases the charge-to-volt ... More Presented by Shoji KAWAHITO on 4 Sep 2012 at 11:30 Type: ORAL Session: Session7 Track: Data reconstruction and algorithms - Vertexing A Monte Carlo study will be presented to quantify the impact of the z resolution of the pixel detector to a new physics search. The choice of the pixel shape and size in the r-\phi and z-directions results in different position resolutions, that in turn influence the selection power for the analysis of a certain physics channel. The presented study illustrates the effect of the pixel z resoluti ... More Presented by Christoph NAGELI on 6 Sep 2012 at 16:50 Type: POSTER Session: Poster session Track: Ultra light mechanics and cooling For the proposed upgraded pixel and strip detector systems of the ATLAS experiment on the HL-LHC near all carbon support structures are a candidate. These consist of two low-density carbon fibre reinforced polymer (CFRP) sheets (low areal weight), consisting of ultra-high modulus fibres, with metallic cooling tubes filled with refrigerant sandwiched between them. Low-density carbon foam is glued a ... More Presented by Richard BATES on 6 Sep 2012 at 15:10 Type: ORAL Session: Session7 Track: Ultra light mechanics and cooling Local thermal management of detector electronics through ultra-thin micro-structured silicon cooling plates is an extremely promising technique for HEP with wide potential application in other fields. It combines a very high thermal efficiency with a very low addition of mass and space, and suppresses all problems of CTE mismatch between the heat source and he heat sink. Typical micro-fabrication ... More Presented by Jan BUYTAERT on 6 Sep 2012 at 16:30 Type: POSTER Session: Poster session Track: Radiation effects The record breaking instantaneous luminosities of 10^33 cm-2 s-1 recently surpassed at the Large Hadron Collider generate a rapidly increasing particle fluence in the ATLAS Pixel Detector. As the radiation dose accumulates, the first effects of radiation damage are now observable in the silicon sensors. A regular monitoring program has been conducted and reveals an increase in the silicon leakage ... More Presented by Attilio ANDREAZZA on 4 Sep 2012 at 15:20 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors Monolithic Active Matrix with Binary Counters (MAMBO) V ASIC has been designed for detecting and measuring low energy X-rays from 6-12keV. A nested well structure with a buried n-well (BNW) and a deeper buried p-well (BPW) is used to electrically isolate the detector from the electronics. BNW acts as an AC ground to electrical signals and behaves as a shield. BPW creates a homogenous electric fiel ... More Presented by Farah FAHIM KHALID on 6 Sep 2012 at 09:20 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors We start by presenting the latest results on the LePix sensor, an innovative Monolithic Active Pixel Sensor (MAPS) aimed at tracking/triggering tasks where high granularity, low power consumption, low material budget, radiation hardness, and production costs are a concern. The detector is built in a 90nm CMOS process on a substrate of moderate resistivity. This allows charge collection by drift wh ... More Presented by Piero GIUBILATO on 6 Sep 2012 at 10:40 Type: POSTER Session: Poster session Track: X-ray imaging applications - Material Science In this work we present a method to efficiently collect scintillation light at the time to reduce photosensor active area. We have applied this procedure on gamma detectors for PET devices based on continuous crystals and SiPM detectors. The use of continuous scintillation crystals preserves the spatial distribution of scintillation light for each γ-ray event, which can be reconstructed with a ... More Presented by Dr. Antonio Javier GONZALEZ MARTINEZ on 6 Sep 2012 at 15:10 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors Monolithic detectors integrate sensor and readout in one piece of silicon and therefore present advantages compared with hybrid detectors in terms of detector assembly, production cost and detector capacitance. Despite years of intensive research they have not yet been widely adopted for high energy physics. Several functional devices on high resistivity silicon have been developed but often requi ... More Presented by Walter SNOEYS on 6 Sep 2012 at 08:30 Type: ORAL Session: Session5 Track: Front end electronics and readout - Readout architectures A 144-channel Pr:LuAG-APD detector is designed and fabricated for medical application. The pixel of the crystal is 2mm x 2mm x 10mm and individually coupled with UV-enhanced 12 x 12 Avalanche Photo Diode array. The APD's pixels are individually connected with Time over Threshold based ASIC and sent to DAQ FPGA. ToT-ASIC is fabricated with 0.25um TSMC CMOS and the power dissipation is 230mW/board. ... More Presented by Dr. Kenji SHIMAZOE on 5 Sep 2012 at 11:00 Type: POSTER Session: Poster session Track: Data reconstruction and algorithms - Pattern recognision and imaging The read-out from individual pixels on planar semi-conductor sensors are grouped into clusters to reconstruct the location where a charged particle passed through the sensor. The resolution given by individual pixel sizes is significantly improved by using the information from the charge sharing between pixels. Such analog cluster creation techniques have been used by the ATLAS experiment for ... More Presented by Attilio ANDREAZZA on 4 Sep 2012 at 15:20 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors Monolithic CMOS Pixels (MAPS) integrate on the same silicon substrate the radiation sensor element with the processing electronics. Their fabrication is possible through an easy access to commercial high-volume foundries, resulting in low costs and high yield. However in the standard implementation these devices suffer from two major limitations. First, only NMOS transistors are allowed on top of ... More Presented by Wojciech DULINSKI on 6 Sep 2012 at 11:40 Type: ORAL Session: Session5 Track: Front end electronics and readout - Readout chip developments In the years around 2020 an upgrade of the LHC to the HL-LHC is scheduled, which will increase the accelerators luminosity by a factor of 10. In the context of this upgrade, the inner detector of the ATLAS experiment will be replaced entirely including the pixel detector. This new pixel detector requires a specific control system which complies with the strict requirements in terms of radiation ha ... More Presented by Lukas PULLEN on 5 Sep 2012 at 11:20 Presented by Yoshinobu UNNO on 2 Sep 2012 at 08:45 Type: POSTER Session: Poster session Track: X-ray imaging applications - Medicine Objective: To determine the optimal image reconstruction windows in the assessment of coronary artery bypass grafts (CABGs) with 256-slice CT, and to assess their associated optimal ECG pulsing windows for tube-current modulation (ETCM). Methods: We recruited 18 patients (three female; mean age 68.9 years) having mean heart rate (HR) of 66.3 bpm and a heart rate variability of 1.3 bpm for this s ... More Presented by YU-XIANG GUAN on 6 Sep 2012 at 15:10 Type: POSTER Session: Poster session Track: X-ray imaging applications - Medicine Purpose: Positron emission tomography (PET) imaging performance is limited by a number of physical, acquisition, and dosimetric constraints. To gain a thorough understanding of this issue, multivariate analysis was used to investigate the simultaneous effects of changes in these factors. This study investigated the relationship among the small animal imaging protocol, imaging performance, and radi ... More Presented by Prof. Tung-Hsin WU on 6 Sep 2012 at 15:10 Type: ORAL Session: Session1 Track: Particle physics applications - High Energy Physics The upgrades for the ATLAS Pixel Detector will be staged in preparation for high luminosity LHC. The first upgrade for the Pixel Detector is the construction of a new pixel layer which will be installed during the first shutdown of the LHC machine, in 2013-14. The new detector, called the Insertable B-layer (IBL), will be installed between the existing Pixel Detector and a new, smaller radius ... More Presented by Ole ROHNE on 3 Sep 2012 at 11:20 Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors PImMS, or Pixel Imaging Mass Spectrometry, is a family of high-speed monolithic CMOS imaging sensors tailored to the requirements of mass spectrometry and allied fields. PImMS pixels each compare step events of collected charge to an adjustable threshold, storing up to four significant events inside the pixel as 12-bit timestamps with a time resolution of 25ns. The pixels may be individually trimm ... More Presented by Jaya John JOHN on 6 Sep 2012 at 11:20 Type: POSTER Session: Poster session Track: X-ray imaging applications - Astronomy We have developed the back-illuminated X-ray CCD camera (BI-CCD) for Soft X-ray Imager (SXI) onboard ASTRO-H. Since the X-ray CCD, especially BI- CCD has a high sensitivity not only for in X-ray but also in both visible light and UV light, X-ray CCD for SXI is directly coated the 100nm thick aluminum on the surface of the CCD in order to block visible light, and we name this aluminum layer OBL (Op ... More Presented by Mr. Shoma IKEDA on 6 Sep 2012 at 15:10 Type: ORAL Session: Session2 Track: X-ray imaging applications - Material Science Currently there are many interesting developments going on in the area of pixel detectors for synchrotrons and XFELs. Many developments done for XFELs also open new measurement capabilities at synchrotrons and overcome limitations of single photon counting detectors. In the presentation I will give an overview of the current developments with a focus on hybrid detector systems. Presented by Bernd SCHMITT on 3 Sep 2012 at 16:50 Type: POSTER Session: Poster session Track: X-ray imaging applications - Astronomy The STIX (Spectrometer Telescope for Imaging X-rays) instrument will be used on board the Solar Orbiter space mission to perform X-ray imaging and spectroscopy of solar flares. STIX is one of 10 instruments of the confirmed M-class mission of the European Space Agency (ESA) to be launched in 2017. The imaging is realized by a Fourier-imaging technique using tungsten grid collimators in front of 32 ... More Presented by Martin BEDNARZIK on 6 Sep 2012 at 15:10 Type: ORAL Session: Session8 Track: Pixel technologies - Hybrid pixels The ATLAS pixel detector for the HL-LHC will require the development of large area pixel modules that can withstand does up to 2x1016 neq cm-3. The area of the pixel system will be over 5m2 and as such low cost, large area modules are required. The development of a quad module based on 4 FE-I4 ROIC will be discussed. The FE-I4 ROIC is a large area chip and the yield of the flip-chip process on sin ... More Presented by Richard BATES on 7 Sep 2012 at 11:10 Type: ORAL Session: Session2 Track: Pixel technologies - Monolithic detectors TBD Presented by Yasuo ARAI on 3 Sep 2012 at 16:20 Type: ORAL Session: Session7 Track: Radiation effects We report on a proton radiation damage experiment on P-Channel CCD newly developed for an X-ray CCD camera onboard the Astro-H satellite. The device has been exposed up to 10^9 protons/cm2 at 6.7 MeV. The charge transfer inefficiency (CTI) is measured as a function of radiation dose. In comparison with the CTI actually measured in the CCD camera onboard the Suzaku satellite for 6 years, we co ... More Presented by koji MORI on 6 Sep 2012 at 13:30 Type: ORAL Session: Session8 Track: Radiation effects ATLAS plans two major upgrades of its pixel detector on the path to HL-LHC: First, the insertion of a 4th pixel layer (Insertable B-Layer, IBL) is currently being prepared for 2013. This will enable the ATLAS tracker to cope with an increase of LHC's peak luminosity to about 3E34 cm^-2 s^-1 which requires a radiation hardness of the sensors of up to 5E15 n_eq cm^-2. Towards the end of this decade, ... More Presented by Tobias WITTIG on 7 Sep 2012 at 10:30 Type: ORAL Session: Session5 Track: Front end electronics and readout - Readout architectures We have designed two ASICs for possible applications in the optical links of a new layer of the ATLAS pixel detector for the initial phase of the LHC luminosity upgrade. The ASICs include a high-speed driver for a VCSEL and a receiver/decoder to extract the data and clock from the signal received by a PIN diode. Both ASICs contain 12 channels for operation with a VCSEL or PIN array. Among these c ... More Presented by Prof. Kock Kiam GAN on 5 Sep 2012 at 11:40 Type: ORAL Session: Session7 Track: Pixel technologies - Hybrid pixels To extend the physics reach of the LHC experiments, several upgrades to the accelerator complex are planned. This upgrade, the HL-LHC, eventually leads to an increase of the peak luminosity by a factor of five to ten compared to the LHC design value. To cope with the higher occupancy and radiation damage also the LHC experiments will be upgraded. The ATLAS Planar Pixel Sensor (PPS) R&D Project ... More Presented by Philipp WEIGELL on 6 Sep 2012 at 14:50 Type: ORAL Session: Session8 Track: Pixel technologies - 3D sensors The upgrade of the LHC to HL-LHC envisaged for 2020 requires silicon detectors of unprecedented radiation tolerance for the silicon tracking detectors. The very high luminosity foreseen (2.5 x 1034cm-2s-1) implies that the innermost layers detectors, at about 3 cm from the interaction point, of the vertex detector will be exposed to fluence up to 1.4x1016cm-2 1 MeV neutron equivalent for the 2020 ... More Presented by Giulio PELLEGRINI on 7 Sep 2012 at 08:50 Type: ORAL Session: Session7 Track: Radiation effects The Pixel Luminosity Telescopes (PLT) is a dedicated luminosity monitor for CMS based on single-crystal diamond sensors. It is designed to measure the bunch-by-bunch relative luminosity to high precision. It consists of a set of small angle telescopes each with three planes of single-crystal diamond pixel sensors. The full PLT will be installed in CMS for the first full energy operation of the LHC ... More Presented by Dean Andrew HIDAS on 6 Sep 2012 at 14:30 Type: ORAL Session: Session8 Track: Pixel technologies - Hybrid pixels The edgeless or active edge silicon pixel detectors have been gaining a lot of interest recently due to improved silicon processing and interconnection technology capabilities. VTT has been one of the drivers of the edgeless process technology on 6" (150 mm) wafers. Last year we were able to gather 17 institutions and industrial companies to join for a multi project wafer process of edgeless silic ... More Presented by Dr. Juha KALLIOPUSKA on 7 Sep 2012 at 09:30 Type: ORAL Session: Session8 Track: Pixel technologies - Hybrid pixels Pixel detectors will be extensively used for the four innermost layers of the upgraded ATLAS experiment at the future High Luminosity LHC (HL-LHC) at CERN. The total area of pixel sensors will be over 5 m2. The silicon sensors that will instrument the pixel volume will have to face several technology challenges. They will have to withstand doses up to 2×1016 neq cm-2, to have a reduced inactive a ... More Presented by Paul DERVAN on 7 Sep 2012 at 10:50 Type: POSTER Session: Poster session Track: Data reconstruction and algorithms - Pattern recognision and imaging While originally aimed at imaging applications, robust in hardware mapping of hot pixels and hot pixel data reconstruction may also provide a starting point for algorithmic cluster reduction in future detector system. The method addresses issues with radiation defects and mitigation of radiation effects while establishing the hot pixel map or list. Presented by Bernard DELLEY on 4 Sep 2012 at 15:20 Type: POSTER Session: Poster session Track: Pixel technologies - Hybrid pixels We are pursuing scribe-cleave-passivate (SCP) technology of making “slim edge” sensors. Such sensors have only a minimal amount of inactive peripheral region, which benefits construction of large-area tracker and imaging systems. Key application steps of this method are surface scribing, cleaving, and passivation of the resulting sidewall. We are working on developing both the technology and p ... More Presented by Vitaliy FADEYEV on 4 Sep 2012 at 15:20 Type: POSTER Session: Poster session Track: Radiation effects It is foreseen to significantly increase the luminosity of CERN’s Large Hadron Collider (LHC) by upgrading the LHC towards the HL-LHC (High Luminosity LHC) in order to harvest the maximum physics potential of the machine. Especially the final upgrade (Phase-II Upgrade) foreseen for 2021 will mean unprecedented radiation levels, exceeding the LHC fluences by roughly an order of magnitude. Due to ... More Presented by Paul DERVAN on 4 Sep 2012 at 15:20 Type: POSTER Session: Poster session Track: Particle physics applications - High Energy Physics While the Large Hadron Collider (LHC) at CERN continues to deliver increasing amounts of luminosity to the experiments, a phased upgrade of the LHC is planned, ultimately aimed at a luminosity of ten times the LHC design luminosity (HL-LHC). To cope with the expected harsh operating conditions in terms of particle rates and radiation dose, the ATLAS collaboration is developing a new tracker. In ou ... More Presented by Yoichi IKEGAMI on 4 Sep 2012 at 15:20 Type: ORAL Session: Session7 Track: Radiation effects Single-event measurements on the analog ASIC developed for astronomical CCD camera systems are reported. The experiments using several heavy ions and protons exhibited positive correlation between the particle's LET (linear energy transfer) and the probability of the SEU (single event upset). The predictive SEU rate in the low earth orbit was derived on the assumption of the CCD camera (SXI) ... More Presented by Hiroshi NAKAJIMA on 6 Sep 2012 at 13:50 Type: ORAL Session: Session2 Track: Particle physics applications - Nuclear Physics The PHENIX detector at RHIC has been equipped Silicon Pixel Detector for identifying the bottom and charm particle by measuring secondary vertex point in the Sqrt(S_NN) = 200GeV Au-Au collisions and Sqrt(s)=500GeV polarized collisions, with Silicon stripixel detectors. The detector consists of 50*400 micron pixel sensors, bump bonded readout chips, high density readout flexible print circuit board ... More Presented by Dr. Atsushi TAKETANI on 3 Sep 2012 at 15:20 Type: ORAL Session: Session1 Track: Particle physics applications - High Energy Physics The ATLAS Pixel Detector is the innermost detector of the ATLAS experiment at the Large Hadron Collider at CERN, providing high-resolution measurements of charged particle tracks in the high radiation environment close to the collision region. This capability is vital for the identification and measurement of proper decay times of long-lived particles such as b-hadrons, and thus vital for the ATLA ... More Presented by Attilio ANDREAZZA on 3 Sep 2012 at 10:00 Type: POSTER Session: Poster session Track: X-ray imaging applications - Medicine In recent years, direct conversion flat-panel X-ray imaging detectors have been researched and used in various medical applications such as chest radiography, mammography and fluoroscopy imaging. In direct detection method, an X-ray photoconductor is used as a conversion material to transform the absorbed X-ray photons to electrical charge, which carries the corresponding signal. In addition to am ... More Presented by Dr. Bo Kyung CHA on 6 Sep 2012 at 15:10 Type: ORAL Session: Session7 Track: Radiation effects The collection of charge carriers generated in p+-n-strip sensors close to the Si-SiO2 interface before and after 1 MGy of X-ray irradiation has been investigated using the transient current technique (TCT) with sub-nanosecond focused light pulses of 660 nm wavelength, which has an absorption length in silicon at room temperature of 3.5 μm. Depending on the applied bias voltage, bias history, ... More Presented by Thomas POEHLSEN on 6 Sep 2012 at 14:10 Session: Registration Type: ORAL Session: Session6 Track: Pixel technologies - Monolithic detectors The use of different semiconductor technologies in the field of particle detector has been always limited by the effects of radiation in both the sensors and the processing circuitry. This fact has encouraged the teams working in future developments to evaluate the use of different technological approaches to minimize the impact of radiation by using new detector material, connections and read-out ... More Presented by Lawrence SOUNG YEE on 6 Sep 2012 at 10:00 Type: ORAL Session: Session2 Track: Particle physics applications - High Energy Physics An upgrade of the existing Japanese Flavour Factory (KEKB in Tsukuba, Japan) is under construction, and is foreseen for commissioning by the end of 2014. This new e+e− machine ("SuperKEKB") will deliver an instantaneous luminosity of 8⋅10^35 cm−2s−1, which is 40 times higher than the world record set by KEKB. In order to be able to fully exploit the increased number of events and provid ... More Presented by Dr. Carlos MARINAS PARDO on 3 Sep 2012 at 14:20 Type: ORAL Session: Session2 Track: Particle physics applications - High Energy Physics Luminosity monitors, beam monitors and tracking detectors of the experiments at the Large Hadron Collider and their upgrades must be able to operate in radiation environments several orders of magnitude harsher than those of any current detector. We have observed in ATLAS that as the environment becomes harsher, detectors not segmented, either spatially or in time, have difficulty handling the se ... More Presented by Harris KAGAN on 3 Sep 2012 at 14:40 Type: ORAL Session: Session2 Track: Particle physics applications - High Energy Physics The LHCb VELO (silicon Vertex Locator) will be upgraded in 2018, as part of the general upgrade of the LHCb experiment, which will transform the entire detector readout to a triggerless system operating at 40 MHz. The current L0 hardware trigger will be removed, and all data reduction algorithms will be executed in a high level software farm, with access to all event information. This will enab ... More Presented by Kazuyoshi CARVALHO AKIBA on 3 Sep 2012 at 15:00 Type: ORAL Session: Session2 Track: Front end electronics and readout - Readout chip developments A novel photon counting method for non-paralyzable counting and its implementation in the new PILATUS3 ASIC are presented. Pulse pile-up significantly affects the observed count rate at high photon fluxes in single-photon counting x-ray detectors and can lead to complete paralyzation of the counting circuit. In PILATUS single-photon counting hybrid-pixel x-ray detectors, count rate correction is a ... More Presented by Dr. Clemens SCHULZE-BRIESE on 3 Sep 2012 at 17:20 Type: POSTER Session: Poster session Track: X-ray imaging applications - Medicine Background: Central obesity in relation to insulin resistance is strongly linked to the development of diabetes. However, data regarding the association between peri-cardial and peri-aortic fat amount, a real estimate of visceral adipose tissue and pre-diabetes status remained elusive. Objective: The aim of this study was to examine whether pericardial and thoracic peri-aortic adipose tissue, wh ... More Presented by Mr. Yang-Hsien LIN on 6 Sep 2012 at 15:10 Type: POSTER Session: Poster session Track: Ultra light mechanics and cooling The new e$^{+}$e$^{-}\$ colliders impose unprecedented demands to the performance of the vertex detectors. To achieve the required resolution in the vertex reconstruction, besides highly segmented pixel detectors, the material budget has to be kept at very low levels to reduce the multiple Coulomb scattering. These requirements are even more challenging in the case of the new Japanese Super Flavour ... More
Presented by Dr. Carlos MARINAS PARDO on 4 Sep 2012 at 15:20
Type: ORAL Session: Session8
Track: Pixel technologies - Hybrid pixels
The R&D activity here presented is focused on the development of a new module concept for the upgrade of the ATLAS pixel system at the High Luminosity LHC (HL-LHC). It employs thin pixel sensors together with a novel vertical integration technology offered by the Fraunhofer Institute EMFT in Munich, consisting of the Solid-Liquid-InterDiffusion (SLID) interconnection, which is an alternative to t ... More
Presented by Anna MACCHIOLO on 7 Sep 2012 at 09:50
Type: ORAL Session: Session4
Track: Pixel technologies - Monolithic detectors
In 2001, a video camera of one million frames per second (1 Mfps) was developed by Etoh et al. In-situ Storage with more than one hundred CCD memory elements were installed for each pixel. Simultaneous recording in all pixels realized the ultra-fast image capturing. The pixel count was 86 kpixels. The type of the sensors was named ISIS, In-situ Storage Image Sensor. They have been continuously evo ... More
Presented by Dr. Tetsuo YAMADA on 4 Sep 2012 at 16:40
Type: POSTER Session: Poster session
Track: X-ray imaging applications - Medicine
R. Page, for the BEAMView collaboration Abstract 1 Introduction The use of Intensity Modulated Radiotherapy (IMRT) for cancer treatments is entering wider use. These treatments involve using a complex configuration of field modifying components, known as Multileaf Collimators (MLC), to dynamically shape the beam. A treatment consists of a sequence of irregular shaped fields, which means r ... More
Presented by Dr. Ryan PAGE on 6 Sep 2012 at 15:10
Type: ORAL Session: Session5
We present concepts and prototyping results towards a third generation pixel readout chip. We consider the 130nm feature size FE-I4 chip, in production for the ATLAS IBL upgrade, to be a second generation chip. A third generation chip would have to go significantly further. A possible direction is to make the IC so generic that different experiments can configure it to meet significantly different ... More
Presented by Maurice GARCIA-SCIVERES on 5 Sep 2012 at 08:30
Type: POSTER Session: Poster session
Track: Data reconstruction and algorithms - Vertexing
The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excellent performance in the early data from the LHC. However, the rapidly increasing number of interactions per bunch crossing introduces new challenges both in computational aspects and physics performance. The combination of both silicon and gas based detectors provides high precision impact paramet ... More
Presented by Kenji HAMANO on 4 Sep 2012 at 15:20
Type: ORAL Session: Session2
Track: Particle physics applications - High Energy Physics
The Inner Tracking System (ITS) is the ALICE key detector for the study of heavy flavour production at LHC. This is attained by the identification of short-lived hadrons containing heavy quarks which have a mean proper decay length in the order of 100-300 um. To accomplish this task the ITS is composed of six cylindrical layers of silicon detectors (two pixel, two drift and two strip) with a radia ... More
Presented by Dr. Stefan ROSSEGGER on 3 Sep 2012 at 16:00
Type: ORAL Session: Session5