WEKO3
アイテム
Spatial Resolution Measured by a Prototype System of Two 4-Layer DOI Detectors for jPET-RD
https://repo.qst.go.jp/records/68753
https://repo.qst.go.jp/records/68753489323ca-5c2d-45b8-b5b9-06acc718d77f
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-11-07 | |||||
| タイトル | ||||||
| タイトル | Spatial Resolution Measured by a Prototype System of Two 4-Layer DOI Detectors for jPET-RD | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Nishikido, Fumihiko
× Nishikido, Fumihiko× Tsuda, Tomoaki× Inadama, Naoko× Yoshida, Eiji× Takahashi, Kei× Shibuya, Kengo× Yamaya, Taiga× Kitamura, Keishi× Murayama, Hideo× 錦戸 文彦× 津田 倫明× 稲玉 直子× 吉田 英治× 高橋 慧× 澁谷 憲悟× 山谷 泰賀× 北村 圭司× 村山 秀雄 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We are developing jPET-RD designed as a small animal PET scanner to achieve high sensitivity as well as high spatial resolution by the use of four-layer depth of interaction (DOI) information of the detector. jPET-RD has five detector rings composed of six DOI detectors arranged hexagonally and the ring diameter of the field of vies is 8.8 mm smaller than typical small animal PET scanners. Each detector module consists of a 32 X 32 X 4 LYSO (Lu: 98%, Y: 2%) crystal array and a 256-channel flat panel position sensitive photomultiplier tube. The size of each crystal element is 1.46 mm X 1.46 mm X 4.5 mm. The crystal block (46.5 mm X 11.6 mm X 18.0 mm) is placed on the central area of a 256ch FP-PMT (49 mm X 49 mm useful area) and coupled with silicone rubber. In the previous study, we succeeded at crystal identification for the detector module composed of the four layer crystal array and achieved the good performance as a detector for a small animal PET with a 32 X 8 X 4 LYSO array corresponding with a quarter of the full size crystal array. We evaluated the spatial resolution of reconstructed images with the one pair system of the two 4-Layer DOI detectors for jPET-RD. The spatial resolutions of smaller than 2 mm in whole field of view by FBP algorithm were achieved. In addition, the spatial resolution of 1.5mm at the center of FOV was achieved. |
|||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | IEEE 2006 Nuclear Science Symposium and Medical Imaging Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2006-11-04 | |||||
| 日付タイプ | Issued | |||||
