2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)最新文献_第9页

Imaging Studies from a Large Volume High Resolution Cadmium Zinc Telluride Preclinical PET System 大容量高分辨率碲化镉锌临床前PET系统的成像研究

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507827

A. Groll, D. Anders, R. Stanford-Hill, S. Gambhir, C. Levin

{"title":"Imaging Studies from a Large Volume High Resolution Cadmium Zinc Telluride Preclinical PET System","authors":"A. Groll, D. Anders, R. Stanford-Hill, S. Gambhir, C. Levin","doi":"10.1109/NSS/MIC42677.2020.9507827","DOIUrl":"https://doi.org/10.1109/NSS/MIC42677.2020.9507827","url":null,"abstract":"This work presents the initial imaging studies for a large volume CZT preclinical PET system. Two full heads of the final four-headed box-shaped system have been constructed with each head composed of 24 CZT crystals; each crystal is of size 40 × 40 × 5 mm3 with sets of orthogonal anode and cathode electrode strips deposited on opposite sides of the crystals. Crystals are paired to form modules with an anode-cathode-cathode-anode configuration. Each CZT crystal has 39 anode strips and 38 electrodes. Anode strips are 100 µm wide with a 1 mm pitch, and steering electrode are 400 µm wide. The cathode side of the detector module is composed of 8 strips which are 4.9 mm wide with a pitch of 5 mm. Photons enter the crystal in an “edge-on” orientation and pass through the 5×40 mm2 edge, which results in a detection efficiency equivalent to that of 2 cm of LSO scintillator. The readout of the cathode and anode strips are supported by custom front end electronics designed around a readout ASIC. This configuration has 3,456 readout channels with an effective 1,872 anode channels and 384 cathode channels. In this work, we imaged a multi-well multi-isotope phantom composed of various activities of FDG and Co-55 ranging from 50 to 100 µCi. The CNR of a 100 µCi FDG well against background was measured to 33.48.","PeriodicalId":6760,"journal":{"name":"2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"88 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86054060","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

Design of Bus Tapes for the ATLAS Strip End-Cap at the HL-LHC HL-LHC ATLAS条形端盖母线带设计

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9508050

F. Carrió, J. Bernabeu, V. Cindro, A. Gorišek

{"title":"Design of Bus Tapes for the ATLAS Strip End-Cap at the HL-LHC","authors":"F. Carrió, J. Bernabeu, V. Cindro, A. Gorišek","doi":"10.1109/NSS/MIC42677.2020.9508050","DOIUrl":"https://doi.org/10.1109/NSS/MIC42677.2020.9508050","url":null,"abstract":"The ATLAS Phase-II Upgrade will replace the Inner detector with a new all-silicon Inner Tracker (ITk) to accommodate the radiation damage and track density expected at the High-Luminosity LHC (HL-LHC). The all-silicon ITk for the HL-LHC consists of a pixel detector with 5 barrel layers and multiple forward disks at a small radius, and a strip tracking detector at the outermost part with 4 barrel layers and 6-end-cap disks on each side. This contribution presents the design of the flexible circuit (bus tape) for the local support structures of the end-cap region of the strip detector, called petals. The bus tapes provide the electrical interface to common services for all the on-board subsystems including power, control and data interfaces. Connections to external services outside of the petals are carried out through the End-of-Structure (EoS) card using optical fibres and copper wires. The bus tapes are manufactured as a 2-layer printed circuit board using polyimide and adhesive Kapton films, with a total thickness of 185 μm and a total length of 60 cm. The layout design has been focused on achieving good signal and power integrity while keeping low mass and low thermal resistance. A total of 768 end-cap bus tapes are needed between 2021 and 2022 for the production of 384 petals with 6,912 modules, where each end-cap disk will consist of 32 petals.","PeriodicalId":6760,"journal":{"name":"2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"3 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81357520","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

Readout System for ePixHR X-ray Detectors: A Framework and Case Study ePixHR x射线探测器读出系统:框架和案例研究

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507754

D. Doering, M. Kwiatkowski, Umanath Kamath, C. Tamma, L. Rota, L. Ruckman, R. Herbst, B. Reese, P. Caragiulo, G. Blaj, C. Kenney, G. Haller, A. Dragone

{"title":"Readout System for ePixHR X-ray Detectors: A Framework and Case Study","authors":"D. Doering, M. Kwiatkowski, Umanath Kamath, C. Tamma, L. Rota, L. Ruckman, R. Herbst, B. Reese, P. Caragiulo, G. Blaj, C. Kenney, G. Haller, A. Dragone","doi":"10.1109/NSS/MIC42677.2020.9507754","DOIUrl":"https://doi.org/10.1109/NSS/MIC42677.2020.9507754","url":null,"abstract":"LCLS-II, a Free Electron Laser (FEL) X-ray light source, started operations at SLAC National lab in 2020. This new machine will produce X-ray pulses with a repetition rate up to 1,000,000 times per second. To take advantage of its high pulse rate, detectors and readout systems that can operate at the same frequency and cope with the generated data volumes are being developed. In this paper, we present the readout system for the first generation of ePixHR high rate detectors including the first readout ASIC, namely, ePixHR10k, the first prototype of this family. This system aims at sustaining readout rates higher than 5,000 frames per second for the matrix of the ePixHR10k sensor/ASIC module (288 rows x 384 columns and 2 bytes per pixel). The proposed electronic system uses an FPGA to perform data capture and transmission to a host computer. The firmware is developed using a custom public library called SURF where building blocks such as ASIC register access, high speed communication links, protocols for data stream, and register configuration exist. The user interface uses a companion framework called ROGUE, which implements the software modules for the elements that exist in SURF. Initial results from X-ray tests using Fe55 source are presented.","PeriodicalId":6760,"journal":{"name":"2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"13 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85158825","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

Progress on large field-of-view coded aperture push-broom Compton scatter imaging 大视场编码孔径推扫康普顿散射成像研究进展

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507955

Y. Liu, X. Xiao, Z. Zhang, W. Zhou, X. Wang, L. Wei

引用次数: 0

Crystal Area Segmentation for a Scintillation Detector based on Convolutional Neural Network 基于卷积神经网络的闪烁检测器晶体区域分割

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507967

Seowung Leem, Byeong-Yeol Yu, H. Cha, Kyeyoung Cho, R. Miyaoka, Cheolung Kang, Jongmyoung Lee, Seungbin Bae, Hakjae Lee, Kisung Lee

{"title":"Crystal Area Segmentation for a Scintillation Detector based on Convolutional Neural Network","authors":"Seowung Leem, Byeong-Yeol Yu, H. Cha, Kyeyoung Cho, R. Miyaoka, Cheolung Kang, Jongmyoung Lee, Seungbin Bae, Hakjae Lee, Kisung Lee","doi":"10.1109/NSS/MIC42677.2020.9507967","DOIUrl":"https://doi.org/10.1109/NSS/MIC42677.2020.9507967","url":null,"abstract":"Crystal area segmentation is one of the critical procedures for decoding the detector module coupled with scintillation crystal. However, the blurring effect makes the decoding procedure challenging. For precise decoding, we propose a crystal area segmentation method based on convolutional neural network (CNN). The method is divided into training stage and evaluation stage. In the training stage, data set was extracted from five flood maps in blocks. These blocks went over preprocessing with bandpass filter (BPF) and thresholding. Then the processed blocks were used to train and test the CNN. In evaluation stage, flood map from 2 positron emission tomography (PET) scanners were tested. The method showed 99.5% and 99.4% of peak detection accuracy for each test samples while existing method achieved 91.1% and 95.4%. The proposed algorithm detected center peaks almost perfectly and improved detectability of boundary peaks. Also, the whole decoding process was done in short amount of time. However, the algorithm proposed in this paper only considered the spatial information of the peaks in flood map. In further studies we will develop improved algorithm with using both spatial and energy information to develop more precise and practical decoding algorithm.","PeriodicalId":6760,"journal":{"name":"2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89693568","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

DOI Estimation for a Clinical MRI-Compatible SPECT Insert 临床mri兼容SPECT插入物DOI估计

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507786

I. D'Adda, M. Carminati, A. Cerrato, A. Morahan, K. Erlandsson, B. Hutton, C. Fiorini

引用次数: 0

Normalisation Factor Estimation in non-TOF 3D PET from Multiple-Energy Window Data 基于多能窗数据的非tof三维PET归一化因子估计

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507957

L. Brusaferri, Elise Emond, A. Bousse, R. Twyman, D. Atkinson, B. Hutton, S. Arridge, K. Thielemans

引用次数: 0

New Radiation Tolerant LGAD for High Energy Physics 新型高能物理耐辐射LGAD

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507740

J. Segal, C. Kenney, R. Patti, Benjamin Parpillon, Sangki Hong

引用次数: 0

Design and development of a compact high-resolution detector for PET insert in small animal irradiator 小型动物辐照器PET插入检测器的设计与研制

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507765

Xinyi Cheng, K. Hu, Dongxu Yang, Y. Shao

引用次数: 2

Dual Gamma/Neutron Sensing with Methylammonium Lead Tribromide Perovskite 三溴化甲基铵铅钙钛矿的双伽马/中子传感

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2020-10-31 DOI: 10.1109/NSS/MIC42677.2020.9507877

Jessica Charest, Ryan Tan, Bogdan Dryzhakov, Kate Higgins, Christopher Busch, Bin Hu, M. Ahmadi, E. Lukosi

引用次数: 0