| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-07-06 |
| タイトル |
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タイトル |
The performance study of developed cost-effective Compton Camera based on Ce:GAGG scintillator using experimental measurements and CCMod of GATE simulation module |
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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 |
Hajar Zarei (Tohoku University)
Yuto Nagao
Kohei Yamamoto (Tohoku University)
Masatoshi Itoh (Tohoku University)
Mitsutaka Yamaguchi
Naoki Kawachi
Hiroshi Watabe
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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 |
In our previous work, a cost-effective Compton camera (CC) using Ce doped Gd3(Al,Ga)5O12 (Ce:GAGG) scintillator consisting of two detectors, scatterer (20.8 × 20.8 × 5 mm3) and absorber (41.7 × 41.7 × 10 mm3), was developed to image gamma rays having energy more than 511 keV. In this study, a newly developed CC with a larger scatterer detector and thinner absorber detector was fabricated to improve the performance. The system consists of two detectors: a scatterer and an absorber of Ce:GAGG scintillator. The size of the scatterer and absorber is the same; a 40-mm × 40-mm × 5-mm array block consists of 40 × 40 pixels. The size of each scintillator pixel is 0.85 mm × 0.85 mm for both systems. Imaging experiments of Na-22 and Cs-137 point sources were performed to investigate the imaging capability for the new camera, and then the obtained data were compared to the previous CC. The current CC's quantum efficiency and sensitivity are improved 1.6 and 2 times greater than the previous one. At the same time, the spatial resolution and angular resolution of both systems are almost the same value at 511 keV. The Compton camera module (CCMod) in GATE v9.0 was employed for Monte Carlo simulations to reproduce the experimental data showing a good agreement. |
| 書誌情報 |
Journal of Instrumentation
巻 17,
号 10,
p. P10012,
発行日 2022-10
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| 出版者 |
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出版者 |
IOP Publishing |
| 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 |
1748-0221 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1748-0221/17/10/P10012 |
