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Measurement of 32 x 8 x 4 LYSO Crystal Responses of DOI Detector for jPET-RD
https://repo.qst.go.jp/records/68225
https://repo.qst.go.jp/records/6822590f6763d-f405-45fc-8541-058577263e22
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-11-08 | |||||
| タイトル | ||||||
| タイトル | Measurement of 32 x 8 x 4 LYSO Crystal Responses of DOI Detector 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 |
Tsuda, Tomoaki
× Tsuda, Tomoaki× 津田 倫明 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | jPET-RD is designed to achieve high sensitivity as well as high spatial resolution by the use of four-layer depth of interaction (DOI) information of the detector. We have previously proposed the DOI encoding method that enables four layers DOI identification using only single kind crystal elements. The basic idea was tested by using Gd2SiO5, and the first prototype detector was developed using Lu2(1-x)Y2xSiO5 (LYSO). In this work, we measured response functions of a jPET-RD prototype detector composed of four layers of a 32 (axial) x 8 (transaxial) LYSO (Lu: 98%, Y: 2%) crystal block with 511 keV gamma rays to estimate resolution performance. The size of each crystal element is 1.44 mm x 1.44 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 256-channel flat panel position sensitive photomultiplier tube (49 mm x 49 mm useful area) and coupled with silicone rubber. As a result, the averaged FWHM of response functions was 1.56 mm in axial and 4.51 mm in depth direction. The energy resolution of all events was 14.7% and the time resolution was found to be 0.66 ns. The experimental results promise excellent performance of a jPET-RD detector. | |||||
| 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 | Nuclear Science Symposium & Medical Imaging Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2005-10-29 | |||||
| 日付タイプ | Issued | |||||
