2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)最新文献_第5页

Rugged, compact diamond-based fast neutron detector operating at up to 200°c 坚固，紧凑的金刚石基快中子探测器，工作温度高达200°c

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069928

O. Philip, F. Gicquel, V. Ernst, Zilu Zhou

引用次数: 0

Development of BaF2 crystals for future HEP experiments at the intensity frontiers 未来HEP实验中强度前沿的BaF2晶体的发展

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069845

Fan Yang, Junfeng Chen, Liyuan Zhang, R. Zhu

引用次数: 8

Timing performance of two PET detector designs capable of time-of-flight and depth-of-interaction measurement: Phoswich and offset crystal layers 两种能够测量飞行时间和相互作用深度的PET探测器的定时性能:Phoswich和偏移晶体层

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069400

Chen-Ming Chang, C. Levin

{"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 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.","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}

引用次数: 0

Simplified simulation method for modelling illicit materials detection system based on EDXRD 基于EDXRD的违禁物品检测系统建模简化仿真方法

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069711

Tianyi Yangdai, Li Zhang

{"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}

引用次数: 1

Input Mezzanine card for the fast tracker at ATLAS 在ATLAS上输入快速跟踪器的mezz卡

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069653

T. Iizawa

引用次数: 0

PhenoPET — results from the plant scanner PhenoPET -来自植物扫描仪的结果

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 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

{"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}

引用次数: 2

Modelling the motion dependent point spread function in motion corrected small animal PET imaging 运动校正小动物PET成像中运动相关点扩展函数的建模

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069389

G. Angelis, J. Gillam, A. Kyme, R. Fulton, S. Meikle

{"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}

引用次数: 1

GATE simulation of a high-performance stationary SPECT system for cardiac imaging 用于心脏成像的高性能固定SPECT系统的GATE模拟

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069814

Dilber Uzun-Özşahin, L. Bläckberg, N. Moghadam, G. Fakhri, H. Sabet

引用次数: 5

Strip detector for the ATLAS detector upgrade for the high — luminosity LHC 为高光度大型强子对撞机ATLAS探测器升级的条形探测器

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069684

D. Sperlich

引用次数: 1

Characterization of AdvanSiD and hamamatsu SiPMs for novel design cryogenic detectors 用于新型低温探测器的AdvanSiD和hamamatsu SiPMs的表征

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069777

T. Cervi, M. Bonesini, A. Falcone, A. Menegolli, G. Raselli, M. Rossella, M. Torti

引用次数: 0