| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-12-19 |
| タイトル |
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タイトル |
Compton Camera Arrangement With a Monolithic LaBr3(Ce) Scintillator and Pixelated GAGG Detector for Medical Imaging |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Silvia Liprandi
Takyu Sodai
Mohammad Safari
Tim Binder
George Dedes
Kei Kamada
Maria Kawula
Akram Mohammadi
Nishikido Fumihiko
Ingrid I. Valencia-Lozano
Rita Viegas
Yamaya Taiga
Katia Parodi
Peter G. Thirolf
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The results presented in this manuscript are divided in two main parts. The aim of the presented work is to conduct feasibility tests on a Compton camera setup to be later scaled up and used for PET and triple coincidence γ -PET purposes. The first part is focused on laboratory characterization of a monolithic LaBr3(Ce) scintillator coupled to a 64-channel multianode photomultiplier (H8500C PMT from Hamamatsu) in combination with a well-established algorithm allowing to determine the interaction’s position resolution. The second part of the article is dedicated to the evaluation of a Compton camera detector arrangement in which the monolithic scintillator acts as an absorber, while a pixelated GAGG scintillator array, read out by a SiPM multipixel photon counter (MPPC), is used as a scatterer component. The accuracy achievable with this system for detecting γ rays from laboratory point sources is investigated. The Compton camera system has been tested with radioactive 137Cs and 60Co point sources. The signal readout and data acquisition system is based on individual spectroscopy electronics modules (NIM and VME), for the absorber and a customized electronics based on Anger logic for the GAGG scatter array. The raw data
were analyzed to serve as input for the image reconstruction, performed using the MEGAlib toolkit software. With a spatial resolution of 1 mm for the scatterer and less than 3 mm for the absorber component, respectively, shifts of 2 mm of both radioactive sources (137Cs and 60Co) could be resolved with the whole Compton camera system. |
| 書誌情報 |
IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES
巻 7,
号 7,
p. 764-774,
発行日 2023-09
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| 出版者 |
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出版者 |
IEEE |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2469-7311 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1109/TRPMS.2023.3282838 |
