WEKO3
アイテム
Development of a YAP(Ce) camera for the imaging of secondary electron bremsstrahlung X-ray emitted during carbon-ion irradiation toward the use of clinical conditions
https://repo.qst.go.jp/records/76220
https://repo.qst.go.jp/records/7622053c959fe-9498-443d-a3c0-eed0b800ce86
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-05-08 | |||||
| タイトル | ||||||
| タイトル | Development of a YAP(Ce) camera for the imaging of secondary electron bremsstrahlung X-ray emitted during carbon-ion irradiation toward the use of clinical conditions | |||||
| 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 |
Seiichi, Yamamoto (Nagoya Univ.)
× Seiichi, Yamamoto (Nagoya Univ.)× Yamaguchi, Mitsutaka× Takashi, Akagi (Hyogo Ion Beam Medical Center)× Makoto, Sasano (Mitsubishi Electric Corp.)× Kawachi, Naoki× Yamaguchi, Mitsutaka× Kawachi, Naoki |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Low-energy X-ray imaging of the secondary electron bremsstrahlung X-ray emitted during carbon-ion irradiation is a promising method for range estimation. However, it remains unclear whether the method can be used for imaging with the clinical dose levels of carbon-ion and whether the bremsstrahlung X-ray can be detected from the deeper part of the body. To clarify these points, we developed a new high resolution low-energy X-ray camera and conducted imaging of the secondary electron bremsstrahlung X-ray during the irradiation of carbon-ions of different energies and intensities. Imaging was also tried with an X-ray camera using a human-head-sized, 17-cm diameter cylindrical phantom. To develop a high resolution imaging detector for a low-energy X-ray, we used a 20 × 20 × 0.5 mm thick cerium-doped yttrium aluminum perovskite, YA1O3 (YAP(Ce)) scintillator plate, which was optically coupled to a 25mm square high quantum efficiency (HQE) type position sensitive photomultiplier tube (PSPMT). The imaging detector was encased in a 2 cm thick tungsten container and a pinhole collimator was attached to its camera head. After evaluating the camera’s performance, secondary electron bremsstrahlung X-ray imaging was tried during irradiation of the carbon-ion and compared the results with a Monte Carlo simulation. We imaged the beam tracks by the secondary electron bremsstrahlung X-ray in real-time during irradiation of the carbon-ion and imaging and range estimation were possible even with near clinical dose level of 7.5 × 108 particles of carbon-ion. Clear images of a secondary electron bremsstrahlung X-ray were also obtained for a 17-cm diameter cylindrical phantom. The measured images were good agreement with the Monte Carlo simulation. We confirmed that our developed YAP(Ce) camera is promising for imaging secondary electron bremsstrahlung X-rays during irradiation of carbon-ions even near clinical conditions. | |||||
| 書誌情報 |
Physics Medicine Biology 巻 64, 号 13, p. 135019-1-135019-15, 発行日 2019-07 |
|||||
| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-9155 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1361-6560/ab2072 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1088/1361-6560/ab2072 | |||||
