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Development of a 4-Layer DOI TOF-PET detector module with a 6 mm-pitch MPPC array
https://repo.qst.go.jp/records/78121
https://repo.qst.go.jp/records/781217c19098f-e895-4132-b14b-54ffc16ac5ed
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-12-19 | |||||
| タイトル | ||||||
| タイトル | Development of a 4-Layer DOI TOF-PET detector module with a 6 mm-pitch MPPC array | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takyu, Sodai
× Takyu, Sodai× Yoshida, Eiji× Nishikido, Fumihiko× Nitta, Munetaka× Akamatsu, Go× Yamaya, Taiga× Takyu, Sodai× Yoshida, Eiji× Nishikido, Fumihiko× Nitta, Munetaka× Akamatsu, Go× Yamaya, Taiga |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | PET detectors with both time-of-flight (TOF) and depth-of-interaction (DOI) capabilities are ideal, but DOI-TOF PET detectors have not been studied well. In this paper, we develop a 4-layer DOI TOF detector. The key item is a recently commercialized module of multi pixel photon counters (MPPCs) (C13500 series, Hamamatsu Photonics K. K., Japan). The MPPC array is the through silicon via (TSV) type with an effective area of 6 x 6 mm 3 (0.075 mm pitch sub pixels), which is arranged as an 8 x 8 array. At first, a pair of lutetium fine silicate (LFS) crystals each sized in 4 x 4 x 10 mm 3 was placed on the center of each one MPPC channel. The CRT value was 252 ps. Afterward one of those detectors was used as the reference detector. Then cerium doped lutetium yttrium orthosilicate (LYSO) crystals sized in 2.8 x 2.8 x 5 mm 3 were arranged in 8 x 8 x 4-layer based on our special reflector arrangement. The 4-layer LYSO array were coupled to the MPPC modules via a light guide. In the position map of the 4-layer LYSO crystal block, most of crystals could be identified. The averaged CRT value for crystals of the central part in the position map for the reference detector was 486 ± 106 ps. In timing spectrum of the third layer and the fourth layer, other components were observed. This was presumed to be due to contamination caused by incomplete crystal identification. Individual specificity for each MPPC channel was required to be calibrated for complete crystal identification. In conclusion, we developed a 4-layer DOI TOF detector and obtained around 500 ps averaged CRT value for the reference detector. | |||||
| 書誌情報 |
Conference record of 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC) 発行日 2019-11 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2577-0829 | |||||
| ISBN | ||||||
| 識別子タイプ | ISBN | |||||
| 関連識別子 | 978-1-5386-8494-8 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/NSSMIC.2018.8824383 | |||||
