2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)最新文献

Development of a low-cost extruded scintillator with co-extruded reflector for the MINOS experiment 用于MINOS实验的低成本共挤反射体的研制

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-11 DOI: 10.1109/NSSMIC.2000.949140

D. Anderson, I. Ambats, B. Baller, P. Border, B. Choudhary, J. Grudzinski, R. Heinz, N. Hill, Y. Huang, M. Ignatenko, T. Joffe-Minor, H.Y. Kim, K. Lang, V. Makeev, K. Mellott, D. Michael, L. Miller, W. Oliver, A. Para, A. Pla-Dalmau, K. Ruddick, R. Talaga, J. Trevor, J. Yun

引用次数: 3

Spatially dependent response of thick and large area PIN diode developed for ASTRO-E hard X-ray detector 用于ASTRO-E型硬x射线探测器的大面积PIN二极管的空间依赖响应

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.949290

M. Sugiho, T. Kamae, K. Makishima, T. Takahashi, T. Murakami, M. Tashiro, Y. Fukazawa, M. Kaneda, T. Tamura, N. Iyomoto, M. Sugizaki, H. Ozawa, A. Kubota, K. Nakazawa, K. Yamaoka, M. Kokubun, N. Ota, C. Tanihata, N. Isobe, S. Kubo, Y. Terada, Y. Matsumoto, Y. Uchiyama, D. Yonetoku, I. Takahashi, J. Kotoku, S. Watanabe, Y. Ezoe

{"title":"Spatially dependent response of thick and large area PIN diode developed for ASTRO-E hard X-ray detector","authors":"M. Sugiho, T. Kamae, K. Makishima, T. Takahashi, T. Murakami, M. Tashiro, Y. Fukazawa, M. Kaneda, T. Tamura, N. Iyomoto, M. Sugizaki, H. Ozawa, A. Kubota, K. Nakazawa, K. Yamaoka, M. Kokubun, N. Ota, C. Tanihata, N. Isobe, S. Kubo, Y. Terada, Y. Matsumoto, Y. Uchiyama, D. Yonetoku, I. Takahashi, J. Kotoku, S. Watanabe, Y. Ezoe","doi":"10.1109/NSSMIC.2000.949290","DOIUrl":"https://doi.org/10.1109/NSSMIC.2000.949290","url":null,"abstract":"The ASTRO-E Hard X-ray Detector utilizes GSO/BGO well-type phoswich counters in compound-eye configuration, to achieve an extremely low background level of about a few times 10/sup -5/ counts s/sup -1/ cm/sup -2/ keV/sup -1/. The GSO scintillators placed at the bottom of the BGO well observe photons in the energy range 30-600 keV. To cover the lower energy range of 10-60 keV, silicon PIN diodes of 2 mm in thickness and 21.5/spl times/21.5 mm/sup 2/ in size were newly developed, and placed in front of the GSO scintillators. The PIN diode exhibits complex spectral responses, including subpeak and low energy tail components. To examine the origin of these components, we measured spatially-resolved response of the PIN diode, and confirmed that the subpeak and the low energy tail are related to the electrode structures and electric fields in the PIN diode, respectively.","PeriodicalId":445100,"journal":{"name":"2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117321348","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

Implementation and evaluation of a 3D OSEM and median root prior (3D OSEM-MRP) reconstruction algorithm 三维OSEM和中位根先验(3D OSEM- mrp)重建算法的实现与评价

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.950102

V. Bettinardi, E. Pagani, S. Alenius, M. Teras, M. Gilardi, C. Labbé, M. Jacobsen, K. Thielemans, M. Sadki, C. Morel, R. Levkovitz, A. Ben-Tal, T. Spinks, G. Mitra, F. Fazio

{"title":"Implementation and evaluation of a 3D OSEM and median root prior (3D OSEM-MRP) reconstruction algorithm","authors":"V. Bettinardi, E. Pagani, S. Alenius, M. Teras, M. Gilardi, C. Labbé, M. Jacobsen, K. Thielemans, M. Sadki, C. Morel, R. Levkovitz, A. Ben-Tal, T. Spinks, G. Mitra, F. Fazio","doi":"10.1109/NSSMIC.2000.950102","DOIUrl":"https://doi.org/10.1109/NSSMIC.2000.950102","url":null,"abstract":"A 3D OSEM and Median Root Prior (3D OSEM-MRP) algorithm has been evaluated for the reconstruction of 3D PET studies. The algorithm was implemented using the software package developed during the EU project PARAPET. Evaluation was performed using experimental phantom data simulating in terms of shape and size PET brain studies. For each phantom, high (/spl sim/200 Mcounts) and low (<50 Mcounts) count statistics 3D PET data were acquired. The performances of the algorithm were evaluated by calculating simple figures of merit (e.g. contrast, coefficient of variation, activity ratio between two regions) based on the use of regions of interest. The performances of the 3D OSEM-MRP were compared with those of a \"pure\" 3D OSEM and of the PROMIS algorithm, using different reconstruction filters. In all the considered experimental situations, 3D OSEM-MRP shows: 1) to converge to a stable solution, 2) to be quantitatively accurate, 3) to be very effective in noise reduction, particularly for low statistics data, 4) to maintain \"good\" spatial resolution. Compared with the 3D OSEM and PROMIS algorithms, 3D OSEM-MRP provides better or comparable results depending on the configuration parameters used for the reconstruction of the images.","PeriodicalId":445100,"journal":{"name":"2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121429451","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

New multi-sector reconstruction for cardiac CT 新型心脏CT多扇形重建

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.950077

T. Pan, Yun Shen

{"title":"New multi-sector reconstruction for cardiac CT","authors":"T. Pan, Yun Shen","doi":"10.1109/NSSMIC.2000.950077","DOIUrl":"https://doi.org/10.1109/NSSMIC.2000.950077","url":null,"abstract":"Summary form only given. We have developed a new multi-sector reconstruction for multi-slice CT with EKG-gating to improve the temporal resolution of cardiac CT imaging. The reconstruction utilizes the sub-second gantry speed and large coverage of the multi-slice CT and EKG-gating to image the heart with thin-slice collimation in a single breath hold. The scan data are taken at pitch of about 1, and gantry speed of 0.8 or 1.0 sec chosen based on the patient heart rate. Utilizing the periodicity cardiac motion, the multi-sector reconstruction improves temporal resolution of reconstructed images up to 4 times. When the gantry speed is faster or slower than the cardiac cycle, a phase difference is created and the phase difference enables the data of current cycle to be combined with the data of the same cardiac phase in the next cardiac cycle for the same temporal resolution. If we combine two to four sectors of the data from 2 to 4 cardiac cycles to make up the data for reconstruction, the temporal resolution will be improved by 2 to 4 times. Phantom and patient studies are included to demonstrate the improvement of temporal resolution by the new multi-sector reconstruction.","PeriodicalId":445100,"journal":{"name":"2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124990968","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

Imaging evaluation of CsI(Tl) arrays for scintimammography CsI(Tl)阵列扫描成像评价

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.949361

R. Pani, M. Cinti, R. Scafè, A. Soluri, R. Pellegriti, L. Indovina, G. de Vincentis, G. Trotta, N. Burgio, C. Ciavola, F. Garibaldi, G. Urciuoli, G. Zavattini, G. Di Domenico, D. Bollini, N. Lanconelli, A. Olivo, S. Pani, L. Rigon, A. Del Guerra

引用次数: 5

Deterioration of pulse-shape discrimination in liquid organic scintillator at high energies 高能液体有机闪烁体脉冲形状识别的恶化

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.949173

I. Yousuke, S. Daiki, K. Hirohiko, S. Nobuhiro, I. Kenji

引用次数: 3

The GREAT triggerless total data readout method GREAT无触发总数据读出方法

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.949943

I. Lazarus, D. Appelbe, P. Butler, P. Coleman-Smith, J. Cresswell, S. Freeman, R. Herzberg, I. Hibbert, D. Joss, S. Letts, R. Page, V. Pucknell, P. Regan, J. Sampson, J. Simpson, J. Thornhill, R. Wadsworth

{"title":"The GREAT triggerless total data readout method","authors":"I. Lazarus, D. Appelbe, P. Butler, P. Coleman-Smith, J. Cresswell, S. Freeman, R. Herzberg, I. Hibbert, D. Joss, S. Letts, R. Page, V. Pucknell, P. Regan, J. Sampson, J. Simpson, J. Thornhill, R. Wadsworth","doi":"10.1109/NSSMIC.2000.949943","DOIUrl":"https://doi.org/10.1109/NSSMIC.2000.949943","url":null,"abstract":"Recoil Decay Tagging (RDT) is a very powerful method for the spectroscopy of exotic nuclei. RDT is a delayed coincidence technique between detectors usually at the target position and at the focal plane of a spectrometer. Such measurements are often limited by dead time. This paper describes a novel triggerless data acquisition method which is being developed for the Gamma Recoil Electron Alpha Tagging (GREAT) spectrometer that overcomes this limitation by virtually eliminating dead time. Our solution is a Total Data Readout (TDR) method where all channels run independently and are associated in software to reconstruct events. The TDR method allows all the data from both target position and focal plane to be collected with practically no dead time losses. Each data word is associated with a timestamp generated from a global 100 MHz clock. Events are then reconstructed in real time in the event builder using temporal and spatial associations defined by the physics of the experiment.","PeriodicalId":445100,"journal":{"name":"2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116148247","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: 137

Comparison of the SSRB, MSRB, and FORE methods with the 3DRP algorithm using data from a high resolution PET scanner SSRB、MSRB和FORE方法与3DRP算法的比较，使用高分辨率PET扫描仪的数据

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.950101

H. Baghaei, J. Uribe, Hongdi Li, Yu Wang, W. Wong

{"title":"Comparison of the SSRB, MSRB, and FORE methods with the 3DRP algorithm using data from a high resolution PET scanner","authors":"H. Baghaei, J. Uribe, Hongdi Li, Yu Wang, W. Wong","doi":"10.1109/NSSMIC.2000.950101","DOIUrl":"https://doi.org/10.1109/NSSMIC.2000.950101","url":null,"abstract":"The authors used the high-resolution prototype PET camera developed at MD Anderson Cancer Center (MDAPET) to scan a cylindrical uniform phantom, a cylindrical phantom with four hot small lesions in a warm background, and the Hoffman brain phantom. The MDAPET camera is a multiring scanner having no septa that allows for three-dimensional (3D) data acquisition. The acquired data were used to test several methods of rebinning 3D-projection data into two-dimensional (2D) sinograms. For this study, first, the 3D data were reconstructed using the 3D-reprojection (3DRP) algorithm; then images were used as a reference for testing the rebinning methods. The methods the authors tested were single-slice rebinning (SSRB), multi-slice rebinning (MSRB), and Fourier rebinning (FORE). After the data were rebinned, the 2D filtered-backprojection (2DFB) or 2D ordered-subsets expectation-maximization (OSEM) algorithm was used for image reconstruction. Rebinning the 3D data and using a 2D reconstruction technique resulted in noise reduction when compared with 3DRP; however, it reduced the contrast recovery and also showed some degradation in spatial resolution. The results also indicated that for the authors' prototype camera, the SSRB followed by 2DFB, which significantly reduces reconstruction time, provides a reasonable alternative to 3DRP.","PeriodicalId":445100,"journal":{"name":"2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122905350","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

4D PET image reconstruction from list mode data 从列表模式数据重建4D PET图像

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.950049

E. Asma, Thomas E. Nichols, J. Qi, R. Leahy

引用次数: 19

Avalanche photodiodes for the CMS detector CMS探测器的雪崩光电二极管

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) Pub Date : 2000-12-01 DOI: 10.1109/NSSMIC.2000.949269

K. Deiters, A. Dorokhov, Q. Ingram, S. Nicol, I. Musienko, B. Patel, D. Renker, S. Reucroft, R. Rusack, T. Sakhelashvili, A. Singovski, J. Swain, P. Vikas

引用次数: 0