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Spatial resolution evaluation with a pair of two four-layer DOI detectors for small animal PET scanner: jPET-RD
https://repo.qst.go.jp/records/45165
https://repo.qst.go.jp/records/4516514bbe6f9-5cb7-4981-814a-884c94119bdc
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-05-24 | |||||
タイトル | ||||||
タイトル | Spatial resolution evaluation with a pair of two four-layer DOI detectors for small animal PET scanner: 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_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 |
Nishikido, Fumihiko
× Nishikido, Fumihiko× Tsuda, Tomoaki× Yoshida, Eiji× Inadama, Naoko× Shibuya, Kengo× Yamaya, Taiga× Kitamura, Keishi× Takahashi, Kei× Ohmura, Atsushi× Murayama, Hideo× 錦戸 文彦× 津田 倫明× 吉田 英治× 稲玉 直子× 澁谷 憲悟× 山谷 泰賀× 北村 圭司× 高橋 慧× 大村 篤史× 村山 秀雄 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We are developing a small animal PET scanner, "jPET-RD" to achieve high sensitivity as well as high spatial resolution by using four-layer depth-of-interaction (DOI) detectors. The jPET-RD is designed with two detector rings. Each detector ring is composed of six DOI detectors arranged hexagonally. The diameter of the field-of-view (FOV) is 8.8 cm, which is smaller than typical small animal PET scanners on the market now. Each detector module consists of a crystal block and a 256-channel flat panel position-sensitive photomultiplier tube. The crystal block, consisting of 32 x 32 x 4 crystal (4096 crystals, each 1.46 mm x 1.46 mm x 4.5 mm) and a reflector, is mounted on the 256ch FP-PMT. \nIn this study, we evaluated the spatial resolution of reconstructed images with the evaluation system of two four-layer DOI detectors which consist of 32 x 32 x 4 LYSO (Lu: 98%, Y: 2%) crystals coupled on the 256ch FP-PMT by using RTV rubber. The spatial resolution of 1.5 mm was obtained at the center of the FOV by the filtered back projection. The spatial resolution, better than 2 mm in the whole FOV, was also achieved with DOI while the spatial resolution without DOI was degraded to 3.3 mm. |
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書誌情報 |
Nuclear Instruments & Methods in Physics Research Section A 巻 584, 号 1, p. 212-218, 発行日 2007-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0168-9002 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.nima.2007.10.001 |