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A small prototype of a single-ring OpenPET
https://repo.qst.go.jp/records/64835
https://repo.qst.go.jp/records/64835710060db-b780-400e-958e-37624b94f7ce
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-11-13 | |||||
| タイトル | ||||||
| タイトル | A small prototype of a single-ring OpenPET | |||||
| 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 |
Yamaya, Taiga
× Yamaya, Taiga× Yoshida, Eiji× Kinouchi, Shoko× Nakajima, Yasunori× Nishikido, Fumihiko× Hirano, Yoshiyuki× Tashima, Hideaki× Ito, Hiroshi× Suga, Mikio× Haneishi, Hideaki× Satou, Shinji× Inaniwa, Taku× 山谷 泰賀× 吉田 英治× 木内 尚子× 中島 靖紀× 錦戸 文彦× 平野 祥之× 田島 英朗× 伊藤 浩× 菅 幹生× 羽石 秀昭× 佐藤 眞二× 稲庭 拓 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The OpenPET geometry is our original idea to visualize a physically opened space even with a full ring geometry. One of our targets is in-beam PET, which is a method for <i>in situ</i> monitoring of charged particle therapy. In our initial idea, the OpenPET had a physically opened field-of-view (FOV) between two detector rings separated by a gap. Originally, the OpenPET was proposed to provide a stress-less brain imaging device. For a dedicated in-beam PET scanner, this dual-ring OpenPET is a good candidate, but it is not necessarily the most efficient geometry because it has a wide FOV (i.e., a gap FOV plus two in-ring FOVs) while only a limited FOV around the irradiation field is required in actual use of in-beam PET. At the last conference, therefore, we proposed a single-ring OpenPET (SROP) dedicated for in-beam PET as our 2<sup>nd</sup> generation geometry. The detector ring of the SROP geometry was the cylinder both ends of which were cut by parallel aslant planes. In this paper, we developed a small prototype of the SROP for a proof-of-concept. It consisted of 2 ellipse-shaped detector rings, each of which had 16 detectors. Each ellipse-shaped detector ring had a major axis of 281.6 mm and a minor axis of 207.5 mm. The rings were slanted by 45 deg and staggered to obtain an open space of 74.5 mm width. We carried out initial in-beam imaging tests in the Heavy Ion Medical Accelerator in Chiba (HIMAC) using a <sup>11</sup>C beam as well as a <sup>12</sup>C beam. PET measurement started at the beginning of the irradiation, and continued for 20 min after the irradiation. For about 3Gy irradiation, a 6 mm range difference was clearly detected with the <sup>11</sup>C beam irradiation. Our initial imaging studies showed promising performance of the SROP prototype. | |||||
| 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 | 2012IEEE NSS&MIC | |||||
| 発表年月日 | ||||||
| 日付 | 2012-11-03 | |||||
| 日付タイプ | Issued | |||||
