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Development of a Portable Graphite Calorimeter for Radiation Dosimetry
https://repo.qst.go.jp/records/45220
https://repo.qst.go.jp/records/4522096a72c96-607d-4098-acb9-28ed7d286f87
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-07-08 | |||||
| タイトル | ||||||
| タイトル | Development of a Portable Graphite Calorimeter for Radiation Dosimetry | |||||
| 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 |
Sakama, Makoto
× Sakama, Makoto× Kanai, Tatsuaki× Fukumura, Akifumi× 坂間 誠× 金井 達明× 福村 明史 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Abstract We developed and performance-tested a portable graphite calorimeter designed to measure the absolute dosimetry of various beams including heavy-ion beams, using a flexible and convenient means of measurement. This measurement system is fully remote-controlled by GPIB systems. The control system uses digital PID (Proportional, Integral, Derivative) control methods based on a LabVIEW program1). It was possible to attain stable conditions in a shorter time by this system. The standard deviation of the measurements using the calorimeter was 0.79 % at a dose rate of 0.8 Gy/min in seventeen calorimeter runs of a 60Co photon beam. The overall uncertainty for the absorbed dose to graphite and water of a 60Co photon beam using the developed calorimeter was 0.89 % and 1.35 %, respectively. Estimations of the correction factors due to vacuum gaps, impurities in the core, the dose gradient and the radiation profile were included in the uncertainty. The absorbed doses to graphite and water irradiated by a 60Co photon beam were compared with dosimetry using ionization chambers. The absorbed doses to graphite and water estimated by the two dosimetry methods agreed within 0.1 % and 0.3 %, respectively. |
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| 書誌情報 |
Japanese Journal of Medical Physics 巻 28, 号 1, p. 1-14, 発行日 2008-05 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1345-5354 | |||||
