Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069928
O. Philip, F. Gicquel, V. Ernst, Zilu Zhou
Recent improvements in the production of artificial single crystal diamonds have made it possible to produce commercial radiation detectors. However, the availability of diamond detectors for high temperature and high shock environments is limited. For this reason, a compact solid state diamond detector was developed for applications which require compact size, stable performance and extreme ruggedness. It is used as a fast neutron detector for monitoring the output of a pulsed neutron generator in oil well logging tools. The detector package, consisting of the diamond sensor and the electronics assembly, has been qualified for operation in the harsh downhole environment of oil fields. This includes high temperature and repeated shocks and vibration. However, this detector has applications beyond well logging, wherever there is a need for a compact, reliable detector for fast neutrons in an environment where ruggedness, exposure to high temperature, compactness and radiation hardness are essential.
{"title":"Rugged, compact diamond-based fast neutron detector operating at up to 200°c","authors":"O. Philip, F. Gicquel, V. Ernst, Zilu Zhou","doi":"10.1109/NSSMIC.2016.8069928","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069928","url":null,"abstract":"Recent improvements in the production of artificial single crystal diamonds have made it possible to produce commercial radiation detectors. However, the availability of diamond detectors for high temperature and high shock environments is limited. For this reason, a compact solid state diamond detector was developed for applications which require compact size, stable performance and extreme ruggedness. It is used as a fast neutron detector for monitoring the output of a pulsed neutron generator in oil well logging tools. The detector package, consisting of the diamond sensor and the electronics assembly, has been qualified for operation in the harsh downhole environment of oil fields. This includes high temperature and repeated shocks and vibration. However, this detector has applications beyond well logging, wherever there is a need for a compact, reliable detector for fast neutrons in an environment where ruggedness, exposure to high temperature, compactness and radiation hardness are essential.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130523246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069845
Fan Yang, Junfeng Chen, Liyuan Zhang, R. Zhu
Barium fluoride (BaF2) is a fast inorganic crystal scintillator. Because of its fast scintillation with sub nanosecond decay time it is considered as a candidate crystal for a very fast crystal calorimetry for future HEP experiments at the intensity frontier. Two crucial issues of BaF2 application are its radiation hardness and its slow scintillation component with 600 ns decay time, which causes pile-up. BaF2 crystals produced by different vendors were irradiated by γ-rays up to 120 Mrad, and show good radiation hardness. A 20 cm long rare earth doped BaF2 crystal grown by BGRI shows promising performance in slow component suppression.
{"title":"Development of BaF2 crystals for future HEP experiments at the intensity frontiers","authors":"Fan Yang, Junfeng Chen, Liyuan Zhang, R. Zhu","doi":"10.1109/NSSMIC.2016.8069845","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069845","url":null,"abstract":"Barium fluoride (BaF2) is a fast inorganic crystal scintillator. Because of its fast scintillation with sub nanosecond decay time it is considered as a candidate crystal for a very fast crystal calorimetry for future HEP experiments at the intensity frontier. Two crucial issues of BaF2 application are its radiation hardness and its slow scintillation component with 600 ns decay time, which causes pile-up. BaF2 crystals produced by different vendors were irradiated by γ-rays up to 120 Mrad, and show good radiation hardness. A 20 cm long rare earth doped BaF2 crystal grown by BGRI shows promising performance in slow component suppression.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130552346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069400
Chen-Ming Chang, C. Levin
PET detectors capable of measuring 511 keV photon time-of-fight (TOF) and depth-of-interaction (DOI) can improve resulting image quality and accuracy. In this work, we studied the timing performance of two TOF-DOI PET detector designs: (1) phoswich and (2) offset crystal arrays. The phoswich detector comprises a 3 × 3 × 20 mm3 element made from a 3 × 3 × 10 mm3 LYSO:Ce crystal with 42 ns decay time optically epoxied to a 3 × 3 × 10 mm3 calcium co-doped LSO:Ce,Ca(0.4%) crystal with 33 ns decay time. The offset crystal block comprises a 4 × 4 array of 3 × 3 × 10 mm3 LYSO crystals in the bottom layer and a 4 × 3 array of LYSO crystals of the same size in the top layer. The top array is offset by half pixel pitch from the bottom array. The coincidence timing resolution for photopeak events acquired by two opposing phoswich detectors ranges from 164.6 ± 0.9 ps to 183.1 ± 4.2 ps FWHM, depending on the interaction layer combinations between two identical, dual layer elements. The coincidence timing resolution for photopeak events acquired by the offset crystal layers against a reference detector comprising a single 3 × 3 × 20 mm3 LYSO crystal ranges from 177.8 ps to 272.6 ps FWHM and averaged to 219.7 ± 35.5 ps FWHM. These results show that both designs are capable of TOF and DOI measurement.
{"title":"Timing performance of two PET detector designs capable of time-of-flight and depth-of-interaction measurement: Phoswich and offset crystal layers","authors":"Chen-Ming Chang, C. Levin","doi":"10.1109/NSSMIC.2016.8069400","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069400","url":null,"abstract":"PET detectors capable of measuring 511 keV photon time-of-fight (TOF) and depth-of-interaction (DOI) can improve resulting image quality and accuracy. In this work, we studied the timing performance of two TOF-DOI PET detector designs: (1) phoswich and (2) offset crystal arrays. The phoswich detector comprises a 3 × 3 × 20 mm<sup>3</sup> element made from a 3 × 3 × 10 mm<sup>3</sup> LYSO:Ce crystal with 42 ns decay time optically epoxied to a 3 × 3 × 10 mm<sup>3</sup> calcium co-doped LSO:Ce,Ca(0.4%) crystal with 33 ns decay time. The offset crystal block comprises a 4 × 4 array of 3 × 3 × 10 mm<sup>3</sup> LYSO crystals in the bottom layer and a 4 × 3 array of LYSO crystals of the same size in the top layer. The top array is offset by half pixel pitch from the bottom array. The coincidence timing resolution for photopeak events acquired by two opposing phoswich detectors ranges from 164.6 ± 0.9 ps to 183.1 ± 4.2 ps FWHM, depending on the interaction layer combinations between two identical, dual layer elements. The coincidence timing resolution for photopeak events acquired by the offset crystal layers against a reference detector comprising a single 3 × 3 × 20 mm<sup>3</sup> LYSO crystal ranges from 177.8 ps to 272.6 ps FWHM and averaged to 219.7 ± 35.5 ps FWHM. These results show that both designs are capable of TOF and DOI measurement.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126823553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069711
Tianyi Yangdai, Li Zhang
With the two fold aim of analyzing the energy dispersive X-ray diffraction (EDXRD) system for illicit materials detection and of selecting optimal configurations prior to experimental tests, a simulation method for modelling the response of EDXRD system has been proposed. The simulation is done based on two orthogonal planes of the system: the diffraction plane (H-Plane) and its vertical plane (V-Plane). Simulated results showed a very good agreement with Monte Carlo results and experimental data. The computational amount of the proposed method is much smaller than the simulation programs based on Monte Carlo method or other complete numerical simulation methods. According to the simulation results, the influence of the angular distributions of H-Plane and V-Plane on the diffraction spectra are different. The spectra resolution is less sensitive to the broadening of the collimator apertures in the V-Plane. This suggests that wider collimator apertures in the V-Plane can be used to increase the detection efficiency without much loss of the angular resolution.
{"title":"Simplified simulation method for modelling illicit materials detection system based on EDXRD","authors":"Tianyi Yangdai, Li Zhang","doi":"10.1109/NSSMIC.2016.8069711","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069711","url":null,"abstract":"With the two fold aim of analyzing the energy dispersive X-ray diffraction (EDXRD) system for illicit materials detection and of selecting optimal configurations prior to experimental tests, a simulation method for modelling the response of EDXRD system has been proposed. The simulation is done based on two orthogonal planes of the system: the diffraction plane (H-Plane) and its vertical plane (V-Plane). Simulated results showed a very good agreement with Monte Carlo results and experimental data. The computational amount of the proposed method is much smaller than the simulation programs based on Monte Carlo method or other complete numerical simulation methods. According to the simulation results, the influence of the angular distributions of H-Plane and V-Plane on the diffraction spectra are different. The spectra resolution is less sensitive to the broadening of the collimator apertures in the V-Plane. This suggests that wider collimator apertures in the V-Plane can be used to increase the detection efficiency without much loss of the angular resolution.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129123043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069653
T. Iizawa
The Fast Tracker is an integral part of trigger upgrade program for the ATLAS experiment. At LHC Run 2, which started operations in June 2015 at a center of mass energy of 13 TeV, the luminosity could reach up to 2•1034 cm−2 s−1 and an average of 40-50 simultaneous proton collisions per beam crossing will be expected. The higher luminosity demands a more sophisticated trigger system with increased use of tracking information. The FTK is a highly-parallel hardware system that rapidly finds and reconstructs tracks in the ATLAS inner-detector at the triggering stage. This paper focuses on the Mezzanine Board that is input module of the entire FTK system. The functions of this board are: receive the pixel and micro-strip data from the ATLAS Silicon read-out drivers, perform clustering, and forward the data to its mother board. Mass production and quality control tests of Mezzanine Boards were completed, and staged installation and commissioning are ongoing. Details of its functionality, mass production, quality control tests, and installation are reported.
快速跟踪器是ATLAS实验触发器升级计划的一个组成部分。在2015年6月开始运行的LHC Run 2，其质能中心为13 TeV，光度可达2•1034 cm−2 s−1，平均每束穿越将同时发生40-50次质子碰撞。更高的亮度要求更复杂的触发系统，增加跟踪信息的使用。FTK是一种高度并行的硬件系统，可以在触发阶段快速发现和重建ATLAS内部探测器的轨迹。本文重点研究了整个FTK系统的输入模块Mezzanine Board。该板的功能是:接收来自ATLAS Silicon读出驱动的像素和微带数据，进行集群处理，并将数据转发给母板。meanine Boards已完成批量生产和质量控制测试，并正在进行阶段安装调试。报告了其功能、批量生产、质量控制测试和安装的细节。
{"title":"Input Mezzanine card for the fast tracker at ATLAS","authors":"T. Iizawa","doi":"10.1109/NSSMIC.2016.8069653","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069653","url":null,"abstract":"The Fast Tracker is an integral part of trigger upgrade program for the ATLAS experiment. At LHC Run 2, which started operations in June 2015 at a center of mass energy of 13 TeV, the luminosity could reach up to 2•1034 cm−2 s−1 and an average of 40-50 simultaneous proton collisions per beam crossing will be expected. The higher luminosity demands a more sophisticated trigger system with increased use of tracking information. The FTK is a highly-parallel hardware system that rapidly finds and reconstructs tracks in the ATLAS inner-detector at the triggering stage. This paper focuses on the Mezzanine Board that is input module of the entire FTK system. The functions of this board are: receive the pixel and micro-strip data from the ATLAS Silicon read-out drivers, perform clustering, and forward the data to its mother board. Mass production and quality control tests of Mezzanine Boards were completed, and staged installation and commissioning are ongoing. Details of its functionality, mass production, quality control tests, and installation are reported.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130624139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069506
M. Streun, K. Borggrewe, A. Chlubek, M. Dautzenberg, C. Degenhardt, R. Dorscheid, D. Durini, A. Erven, L. Jokhovets, L. Meessen, R. Metzner, O. Mülhens, H. Nöldgen, D. Pflugfelder, S. Reinartz, J. Scheins, B. Zwaans, S. Jahnke, U. Schurr, S. van Waasen
Within the German Plant Phenotyping Network (DPPN), we developed a novel PET scanner based on Philips Digital Photon Counters (DPCs, or dSiPMs = digital Silicon Photomultipliers). The scanner is dedicated for plant research and provides functional information on carbon transport within the plant. To this end the detector ring is oriented horizontally. It provides a Field-of-View of 18 cm dia. and 20 cm in height. The read-out electronics cluster hits from different photodetector pixels when they originate from the same scintillation event. These single events are written via USB 3.0 with up to 300 MB/s to the computer system. Crystal identification, energy discrimination and coincidence detection is realized in software. The spatial resolution in the center Field-of-View (CFOV) could be estimated to approx. 1.6 mm from measurements of a dedicated hot rod phantom. Preliminary sensitivity measurements result in a peak sensitivity of 4.04% (ΔE = 250-750 keV) in the CFOV and a Coincidence Resolving Time of 298 ps could be achieved.
{"title":"PhenoPET — results from the plant scanner","authors":"M. Streun, K. Borggrewe, A. Chlubek, M. Dautzenberg, C. Degenhardt, R. Dorscheid, D. Durini, A. Erven, L. Jokhovets, L. Meessen, R. Metzner, O. Mülhens, H. Nöldgen, D. Pflugfelder, S. Reinartz, J. Scheins, B. Zwaans, S. Jahnke, U. Schurr, S. van Waasen","doi":"10.1109/NSSMIC.2016.8069506","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069506","url":null,"abstract":"Within the German Plant Phenotyping Network (DPPN), we developed a novel PET scanner based on Philips Digital Photon Counters (DPCs, or dSiPMs = digital Silicon Photomultipliers). The scanner is dedicated for plant research and provides functional information on carbon transport within the plant. To this end the detector ring is oriented horizontally. It provides a Field-of-View of 18 cm dia. and 20 cm in height. The read-out electronics cluster hits from different photodetector pixels when they originate from the same scintillation event. These single events are written via USB 3.0 with up to 300 MB/s to the computer system. Crystal identification, energy discrimination and coincidence detection is realized in software. The spatial resolution in the center Field-of-View (CFOV) could be estimated to approx. 1.6 mm from measurements of a dedicated hot rod phantom. Preliminary sensitivity measurements result in a peak sensitivity of 4.04% (ΔE = 250-750 keV) in the CFOV and a Coincidence Resolving Time of 298 ps could be achieved.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130649387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069389
G. Angelis, J. Gillam, A. Kyme, R. Fulton, S. Meikle
Motion corrected images from awake and freely moving animals often exhibit reduced resolution when compared to their stationary counterparts. This could be attributed to the combination of brief periods of fast animal motion and insufficient motion sampling speed. In this paper we hypothesise that we can measure the motion dependent point spread function of a given study and mitigate the motion blurring artifacts in the reconstructed images, in a similar way that a measured system response point spread function can improve resolution due to geometric effects (e.g. parallax errors). We investigated this hypothesis on a set of experimentally measured phantom data, which underwent a series of distinctively different motion patterns, ranging from slow to fast. Preliminary results showed that motion corrected images have reduced resolution compared to the stationary image and noticeable motion blurring artefacts, particularly for fast speed/acceleration settings. In addition, images deconvolved after reconstruction with the measured motion dependent PSF appear to be sharper compared to their unprocessed counterparts, yet without completely eliminating the motion blurring artefacts. Work is in progress to refine the methodology, by decomposing the geometric and motion components of the PSF, as well as including the deconvolution within the reconstruction algorithm.
{"title":"Modelling the motion dependent point spread function in motion corrected small animal PET imaging","authors":"G. Angelis, J. Gillam, A. Kyme, R. Fulton, S. Meikle","doi":"10.1109/NSSMIC.2016.8069389","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069389","url":null,"abstract":"Motion corrected images from awake and freely moving animals often exhibit reduced resolution when compared to their stationary counterparts. This could be attributed to the combination of brief periods of fast animal motion and insufficient motion sampling speed. In this paper we hypothesise that we can measure the motion dependent point spread function of a given study and mitigate the motion blurring artifacts in the reconstructed images, in a similar way that a measured system response point spread function can improve resolution due to geometric effects (e.g. parallax errors). We investigated this hypothesis on a set of experimentally measured phantom data, which underwent a series of distinctively different motion patterns, ranging from slow to fast. Preliminary results showed that motion corrected images have reduced resolution compared to the stationary image and noticeable motion blurring artefacts, particularly for fast speed/acceleration settings. In addition, images deconvolved after reconstruction with the measured motion dependent PSF appear to be sharper compared to their unprocessed counterparts, yet without completely eliminating the motion blurring artefacts. Work is in progress to refine the methodology, by decomposing the geometric and motion components of the PSF, as well as including the deconvolution within the reconstruction algorithm.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124107110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069814
Dilber Uzun-Özşahin, L. Bläckberg, N. Moghadam, G. Fakhri, H. Sabet
In this work we report on GATE simulation studies of DC-SPECT, a body contouring system designed for cardiac imaging applications. The design concept of the DC-SPECT is based on multiple simultaneous view of the heart enabled by the use of laser processed CsI:Tl detector modules with high intrinsic detector resolution. Our theoretical and GATE simulation results show that we can obtain ∼0.081% system sensitivity and ∼10.0 mm FWHM system spatial resolution without point spread function (PSF) modeling or other correction techniques. Image reconstruction of a Derenzo-like phantom suggest that the DC-SPECT system can resolve activity rods smaller than 10 mm diameter with no correction techniques applied.
在这项工作中，我们报告了DC-SPECT的GATE模拟研究，这是一种为心脏成像应用而设计的身体轮廓系统。DC-SPECT的设计理念是基于心脏的多个同时视图，通过使用具有高内在探测器分辨率的激光处理CsI:Tl探测器模块实现。我们的理论和GATE仿真结果表明，在没有点扩散函数(PSF)建模或其他校正技术的情况下，我们可以获得~ 0.081%的系统灵敏度和~ 10.0 mm FWHM系统空间分辨率。derenzo样幻像的图像重建表明，DC-SPECT系统可以在不使用校正技术的情况下分辨直径小于10毫米的活动棒。
{"title":"GATE simulation of a high-performance stationary SPECT system for cardiac imaging","authors":"Dilber Uzun-Özşahin, L. Bläckberg, N. Moghadam, G. Fakhri, H. Sabet","doi":"10.1109/NSSMIC.2016.8069814","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069814","url":null,"abstract":"In this work we report on GATE simulation studies of DC-SPECT, a body contouring system designed for cardiac imaging applications. The design concept of the DC-SPECT is based on multiple simultaneous view of the heart enabled by the use of laser processed CsI:Tl detector modules with high intrinsic detector resolution. Our theoretical and GATE simulation results show that we can obtain ∼0.081% system sensitivity and ∼10.0 mm FWHM system spatial resolution without point spread function (PSF) modeling or other correction techniques. Image reconstruction of a Derenzo-like phantom suggest that the DC-SPECT system can resolve activity rods smaller than 10 mm diameter with no correction techniques applied.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124204865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069684
D. Sperlich
The planned HL-LHC (High Luminosity LHC) expected to start in 2025 is being designed to maximise the physics potential of the LHC through a sizeable increase in the luminosity, reaching 1–1035 cm2s−1 after 10 years of operation [1]. A consequence of this increased luminosity is the expected radiation damage at an integrated luminosity of 3000 fb−1, requiring the strip part of the tracking detectors to withstand hadron fluencies of up to 1.2–1015 MeV neutron equivalent per cm2 and ionising doses of up to 50.4MRad. With the addition of increased readout rates, a complete re-design of the current ATLAS Inner Detector (ID) [2] is being developed as the Inner Tracker (ITk)[1], which will consist of both strip and pixelated silicon detectors.
{"title":"Strip detector for the ATLAS detector upgrade for the high — luminosity LHC","authors":"D. Sperlich","doi":"10.1109/NSSMIC.2016.8069684","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069684","url":null,"abstract":"The planned HL-LHC (High Luminosity LHC) expected to start in 2025 is being designed to maximise the physics potential of the LHC through a sizeable increase in the luminosity, reaching 1–10<sup>35</sup> cm<sup>2</sup>s<sup>−1</sup> after 10 years of operation [1]. A consequence of this increased luminosity is the expected radiation damage at an integrated luminosity of 3000 fb<sup>−1</sup>, requiring the strip part of the tracking detectors to withstand hadron fluencies of up to 1.2–10<sup>15</sup> MeV neutron equivalent per cm<sup>2</sup> and ionising doses of up to 50.4MRad. With the addition of increased readout rates, a complete re-design of the current ATLAS Inner Detector (ID) [2] is being developed as the Inner Tracker (ITk)[1], which will consist of both strip and pixelated silicon detectors.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-01DOI: 10.1109/NSSMIC.2016.8069777
T. Cervi, M. Bonesini, A. Falcone, A. Menegolli, G. Raselli, M. Rossella, M. Torti
Silicon Photomultipliers are semiconductor-based photodetectors with performances similar to the traditional photomultiplier tubes, frequently used in many fields. In this article we report results obtained testing some devices at cryogenic temperatures in view of an application for scintillation light detection in detectors that use liquid argon as active medium. This campaign of measurements is the first step to find the most suitable model for this application.
{"title":"Characterization of AdvanSiD and hamamatsu SiPMs for novel design cryogenic detectors","authors":"T. Cervi, M. Bonesini, A. Falcone, A. Menegolli, G. Raselli, M. Rossella, M. Torti","doi":"10.1109/NSSMIC.2016.8069777","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069777","url":null,"abstract":"Silicon Photomultipliers are semiconductor-based photodetectors with performances similar to the traditional photomultiplier tubes, frequently used in many fields. In this article we report results obtained testing some devices at cryogenic temperatures in view of an application for scintillation light detection in detectors that use liquid argon as active medium. This campaign of measurements is the first step to find the most suitable model for this application.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：