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Performance evaluation of an OpenPET Detector for Heavy Ion Therapy under Actual In-beam Condition
https://repo.qst.go.jp/records/70338
https://repo.qst.go.jp/records/70338728a67fd-a5c3-4012-86d0-53a10651ad87
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-11-24 | |||||
| タイトル | ||||||
| タイトル | Performance evaluation of an OpenPET Detector for Heavy Ion Therapy under Actual In-beam Condition | |||||
| 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× et.al× 錦戸 文彦 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | OpenPET which consists of two detector rings separated axially is suitable for in-beam PET in heavy ion therapy due to the open space between the separated detector rings. Although the primary ion beam do not enter into the PET detector in the OpenPET, light fragment ions from a target can enter into the detectors and affect the detector performance under the actual in-beam condition. Previously, we demonstrate that the OpenPET detector can be sufficiently operated in off-beam experiments after carbon beam irradiation. In this presentation, we report the results of in-beam measurements with a prototype OpenPET detector optimized for the in-beam measurement. Experiments were performed in the Heavy Ion Medical Accelerator in Chiba (HIMAC) at the National institute of Radiological Sciences (NIRS). The OpenPET detector consisted of a 8 x 8 x 4 LGSO crystal array and a 64-channel PS-PMT. The size of the crystals was 2.9mmx2.9mmx5.0mm. The energy and intensity of the 12C beam were 290MeV/u and 108 -109 particle per second (pps). This beam condition is similar to the actual treatment condition in HIMAC. Carbon ions entered to a water phantom and all of the primary carbon ions were stopped in the water. The OpenPET detector was positioned 30cm apart from the backside of the water phantom at an angle of 30 degree. A coincidence detector was positioned at the opposite side of the water phantom. As a result, the sufficient crystal identification performance was achieved with slight deterioration of the position histograms. |
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| 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 | 2010 Nuclear Science Symposium and Medical Imaging Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2010-11-06 | |||||
| 日付タイプ | Issued | |||||
