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GPU-based optical propagation simulator of a laser-processed crystal block for the X'tal cube PET detector.
https://repo.qst.go.jp/records/46722
https://repo.qst.go.jp/records/467225a5f0b99-69e8-4ec8-af4d-1dafb31b0bf6
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-02-18 | |||||
| タイトル | ||||||
| タイトル | GPU-based optical propagation simulator of a laser-processed crystal block for the X'tal cube PET detector. | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Ogata, Yuma
× Ogata, Yuma× Ohnishi, Takashi× Moriya, Takahiro× Inadama, Naoko× Nishikido, Fumihiko× Yoshida, Eiji× Murayama, Hideo× Yamaya, Taiga× Haneishi, Hideaki× 大西 峻× 森谷 隆広× 稲玉 直子× 錦戸 文彦× 吉田 英治× 村山 秀雄× 山谷 泰賀× 羽石 秀昭 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The X'tal cube is a next-generation DOI detector for PET that we are developing to offer higher resolution and higher sensitivity than is available with present detectors. It is constructed from a cubic monolithic scintillation crystal and silicon photomultipliers which are coupled on various positions of the six surfaces of the cube. A laser-processing technique is applied to produce 3D optical boundaries composed of micro-cracks inside the monolithic scintillator crystal. The current configuration is based on an empirical trial of a laser-processed boundary. There is room to improve the spatial resolution by optimizing the setting of the laser-processed boundary. In fact, the laser-processing technique has high freedom in setting the parameters of the boundary such as size, pitch, and angle. Computer simulation can effectively optimize such parameters. In this study, to design optical characteristics properly for the laser-processed crystal, we developed a Monte Carlo simulator which can model arbitrary arrangements of laser-processed optical boundaries (LPBs). The optical characteristics of the LPBs were measured by use of a setup with a laser and a photo-diode, and then modeled in the simulator. The accuracy of the simulator was confirmed by comparison of position histograms obtained from the simulation and from experiments with a prototype detector composed of a cubic LYSO monolithic crystal with 6 × 6 × 6 segments and multi-pixel photon counters. Furthermore, the simulator was accelerated by parallel computing with general-purpose computing on a graphics processing unit. The calculation speed was about 400 times faster than that with a CPU. | |||||
| 書誌情報 |
Radiological physics and technology 巻 7, 号 1, p. 35-42, 発行日 2014-01 |
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| 出版者 | ||||||
| 出版者 | Springer Japan | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1865-0333 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 23896989 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s12194-013-0228-z | |||||
