2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)最新文献_第8页

A design of scintillator tiles read out by surface-mounted SiPMs for a future hadron calorimeter 未来强子量热计用表面安装sipm读出闪烁体瓦片的设计

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431118

Yong Liu, V. Buscher, J. Caudron, P. Chau, S. Krause, L. Masetti, U. Schafer, R. Spreckels, S. Tapprogge, R. Wanke

{"title":"A design of scintillator tiles read out by surface-mounted SiPMs for a future hadron calorimeter","authors":"Yong Liu, V. Buscher, J. Caudron, P. Chau, S. Krause, L. Masetti, U. Schafer, R. Spreckels, S. Tapprogge, R. Wanke","doi":"10.1109/NSSMIC.2014.7431118","DOIUrl":"https://doi.org/10.1109/NSSMIC.2014.7431118","url":null,"abstract":"Precision calorimetry using highly granular sampling calorimeters is being developed based on the particle flow concept within the CALICE collaboration. One design option of a hadron calorimeter is based on silicon photomultipliers (SiPMs) to detect photons generated in plastic scintillator tiles. Driven by the need of automated mass assembly of around ten million channels stringently required by the high granularity, we developed a design of scintillator tiles directly coupled with surface-mounted SiPMs. A cavity is created in the center of the bottom surface of each tile to provide enough room for the whole SiPM package and to improve collection of the light produced by incident particles penetrating the tile at different positions. The cavity design has been optimized using a GEANT4-based full simulation model to achieve a high response to a Minimum Ionizing Particles (MIP) and also good spatial uniformity. The single-MIP response for scintillator tiles with an optimized cavity design has been measured using cosmic rays, which shows that a SiPM with a sensitive area of only 1 × 1 mm2 (Hamamatsu MPPC S12571-025P) reaches a mean response of more than 23 photon equivalents with a dynamic range of many tens of MIPs. A recent uniformity measurement for the same tile design is performed by scanning the tile area using focused electrons from a 90Sr source, which shows that around 97% (80%) of the tile area is within 90% (95%) response uniformity. This optimized design is well beyond the requirements for a precision hadron calorimeter.","PeriodicalId":144711,"journal":{"name":"2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122134981","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: 26

A dual backside-illuminated 800-cell multi-channel digital SiPM with 100 TDCs in 130nm 3D IC technology 采用130纳米3D集成电路技术，具有100个tdc的双背面照明800单元多通道数字SiPM

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431246

E. Charbon, Mario Scandini, J. M. Pavia, Martin Wolf

引用次数: 22

Design, construction and prototyping of the silicon strip tracker for the Micro Vertex Detector of the PANDA Experiment 熊猫实验微顶点探测器硅条跟踪器的设计、构造与原型制作

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431104

H. Zaunick, K. Brinkmann, V. D. di Pietro, A. Goerres, T. Quagli, A. Riccardi, A. Rivetti, R. Schnell, H. Sohlbach

{"title":"Design, construction and prototyping of the silicon strip tracker for the Micro Vertex Detector of the PANDA Experiment","authors":"H. Zaunick, K. Brinkmann, V. D. di Pietro, A. Goerres, T. Quagli, A. Riccardi, A. Rivetti, R. Schnell, H. Sohlbach","doi":"10.1109/NSSMIC.2014.7431104","DOIUrl":"https://doi.org/10.1109/NSSMIC.2014.7431104","url":null,"abstract":"The future PANDA-Experiment at the FAIR accelerator facility in Darmstadt/Germany utilizes an antiproton beam with momenta of 1.5 - 15 GeV/c incident on a hydrogen or heavy element fixed target. It addresses open questions concerning the strong interaction with one focus on high precision charmonium spectroscopy. The spatial and timing resolution in detecting fast-decaying particles e.g. in open-charm channels is crucial and requires the application of thin solid state detectors coupled with a fast untriggered readout electronics. The contribution will focus on the silicon microstrip tracker of the innermost subdetector, the Micro Vertex Detector (MVD), which is composed of double-sided silicon strip detectors (DSSDs). These are connected to ultrathin flex modules carrying novel fast self-triggering front-end ASICs named PASTA. The construction of the DSSD modules, the carrier PCB and the architecture of the PASTA chip will be discussed as well as methods to qualify the sensors. An overview of the prototypes developed and tested up to now is given together with the future steps to be taken in order to arrive at the mass production of the full-scale modules.","PeriodicalId":144711,"journal":{"name":"2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125781608","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

A statistical analysis of external respiratory motion using Microsoft Kinect 使用微软Kinect进行外部呼吸运动的统计分析

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7430893

F. Tahavori, Ashrani Aizzuddin Abd Rahni, K. Wells

{"title":"A statistical analysis of external respiratory motion using Microsoft Kinect","authors":"F. Tahavori, Ashrani Aizzuddin Abd Rahni, K. Wells","doi":"10.1109/NSSMIC.2014.7430893","DOIUrl":"https://doi.org/10.1109/NSSMIC.2014.7430893","url":null,"abstract":"External respiratory motion has been extracted from a set of normal volunteers (14 males and 6 females) using Kinect for Windows - a low cost 3D depth camera, which is non-invasive and where there is no marker placement requirement. Such motion was captured on three separate occasions for each individual. We present the first analysis of this respiratory motion. All volunteers were registered to a common reference using a 2D affine transformation so that inter- and intra-session analysis could be successfully completed. A map representing the standard deviation of the depth displacement across the chest was obtained to categorise the dominant mode of breathing. To investigate this hypothesis, the first Eigen image obtained was segmented. Then statistical characteristics of this motion were extracted for each individual including amplitude, period, end exhale, as well as baseline drift and duty cycle, as represented by binning the data into 10 phases as commonly used in dynamic CT. We also demonstrate the intrinsic relationship between respiratory frequency and respiratory amplitude. This work demonstrates for the first time the effectiveness of Kinect in acquiring external respiratory motion data across a significant cohort of volunteers without the need for marker placement. Moreover this analysis offers insight into the inter- and intra session variations in respiratory motion. Such information may be used to inform the development of motion correction and motion prediction strategies in diagnostic and therapeutic imaging.","PeriodicalId":144711,"journal":{"name":"2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129685553","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

Results and potential applications of handheld, midsized, and large-area low-cost Li foil MWPCS 手持式、中、大面积低成本锂箔MWPCS的研究成果及应用前景

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431241

K. Nelson, Niklas J. Hinson, M. R. Kusner, M. Mayhugh, B. Montag, Aaron J. Schmidt, D. Mcgregor

{"title":"Results and potential applications of handheld, midsized, and large-area low-cost Li foil MWPCS","authors":"K. Nelson, Niklas J. Hinson, M. R. Kusner, M. Mayhugh, B. Montag, Aaron J. Schmidt, D. Mcgregor","doi":"10.1109/NSSMIC.2014.7431241","DOIUrl":"https://doi.org/10.1109/NSSMIC.2014.7431241","url":null,"abstract":"Three different sizes of Li foil multi-wire proportional counter (MWPC) neutron detectors were constructed with effective areas ranging between 30-1250 cm2. These Li foil MWPC neutron detectors contain five 75 μm thick suspended Li foils. Each foil is less than the summed range (156 μm) of the triton and alpha particle reaction products from the 6Li(n,α)3H reaction. Suspending Li foils offers several advantages over conventional coated gas-filled devices, such as increased detection efficiency and gamma-ray rejection capabilities. Improvements are a direct result of the reaction products simultaneously escaping both sides of suspended Li foils. The three categories of detectors constructed (large-area, mid-sized, handheld) were tested against 3He neutron detectors. Two large-area detectors (1250 cm2 effective area) were position back-to-back in HDPE housing. Various tests were completed with this large-area unit including: 1/R2, transient, field-of-view, and angular response. A mid-sized detector (550 cm2) was delivered to a backpack test campaign where the device outperformed two commercially available 3He tube backpack detectors. Both the large-area and mid-sized Li foil MWPCs had measured intrinsic thermal neutron detection efficiencies of 54% and a gamma-ray rejection ratio (GRR) of 3.0 × 10-9 or better. Lastly, several handheld sized devices were constructed and compared to a 4 atm 3He tube (εth = 81.5%). A smaller version of the five layer devices was constructed (effective area: 30 cm2). This five layer device and another device, referred to as the `5-layer mini' and `Quad', had comparable count rates to the 3He detector.","PeriodicalId":144711,"journal":{"name":"2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885694","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

Comparative study on the effects of chemical treatments on CdZnTe nuclear detectors 化学处理对CdZnTe核探测器影响的比较研究

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431279

S. Egarievwe, I. Okwechime, A. Hossain, Julius O. Jow, Zaveon M. Hales, Alexander A. Egarievwe, U. Roy, R. James

{"title":"Comparative study on the effects of chemical treatments on CdZnTe nuclear detectors","authors":"S. Egarievwe, I. Okwechime, A. Hossain, Julius O. Jow, Zaveon M. Hales, Alexander A. Egarievwe, U. Roy, R. James","doi":"10.1109/NSSMIC.2014.7431279","DOIUrl":"https://doi.org/10.1109/NSSMIC.2014.7431279","url":null,"abstract":"Room temperature semiconductor detectors such as cadmium zinc telluride (CdZnTe) are often subject to surface damage during fabrication processes, thus affecting detector performance. The surface defects are usually removed through mechanical and chemical polishing, and passivation processes. This paper compares the effects of two surface passivation chemical solutions on CdZnTe detectors. The two chemicals studied are ammonium fluoride in hydrogen peroxide (NH4F + H2O2 + H2O) and potassium hydroxide in hydrogen peroxide (0.1 g of KOH + 10 ml of 30% H2O2) solutions. X-ray photoelectron spectroscopy analysis showed that the NH4F-based solution is more effective at converting Te species on the CZT wafer surfaces into a more stable TeO2 layer, with values of 4.90 and 5.34 for the Te3d3/2O2/Te3d3/2 and Te3d5/2O2/Te3d5/2 peak-height ratios respectively, compared to the KOH-based solution which has 1.25 and 1.19 respectively. Analysis of the 59.5-keV peak of Am-241 showed that the sample passivated with the NH4F-based solution has a better energy resolution (FWHM = 9.83%) compared to the one passivated with the KOH-based solution (FWHM = 14.60%).","PeriodicalId":144711,"journal":{"name":"2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128562233","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: 3

PERCIVAL: The design and characterisation of a CMOS image sensor for direct detection of low-energy X-rays 用于直接探测低能x射线的CMOS图像传感器的设计和特性

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431113

B. Marsh, D. Das, I. Sedgwick, R. Turchetta, M. Bayer, J. Correa, P. Gottlicher, S. Lange, A. Marras, I. Shevyakov, S. Smoljanin, M. Viti, C. Wunderer, Q. Xia, M. Zimmer, G. Cautero, D. Giuressi, R. Menk, L. Stebel, H. Yousef, J. Marchal, U. Pedersen, N. Rees, N. Tartoni, H. Graafsma

引用次数: 5

Characterization of the ePix10k camera at SSRL and LCLS ePix10k相机在SSRL和LCLS上的特性

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431214

P. Hart, G. Blaj, P. Caragiulo, G. Carini, A. Dragone, G. Haller, J. Hasi, R. Herbst, S. Herrmann, C. Kenney, H. Lemke, B. Markovic, S. Nelson, K. Nishimura, S. Osier, J. Pines, B. Reese, J. Segal, A. Tomada, M. Weaver, D. Zhu

引用次数: 4

Online precision gas evaluation of the ATLAS Muon Spectrometer during LHC Run1 大型强子对撞机运行过程中ATLAS μ子谱仪的在线精密气体评价

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431058

C. Geng

引用次数: 0

Laboratory-based edge-illumination phase-contrast imaging: Dark-field retrieval and high-resolution implementations 基于实验室的边缘照明相衬成像:暗场检索和高分辨率实现

2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2014-11-01 DOI: 10.1109/NSSMIC.2014.7431019

M. Endrizzi, P. Diemoz, C. Hagen, T. P. Millard, F. Vittoria, U. Wagner, C. Rau, I. Robinson, A. Olivo

引用次数: 3