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External dose audits for high energy X-rays used in radiotherapy by ANTM
https://repo.qst.go.jp/records/65408
https://repo.qst.go.jp/records/65408d3f46a19-b3f4-41df-83e9-08d8f8462acf
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-01-31 | |||||
| タイトル | ||||||
| タイトル | External dose audits for high energy X-rays used in radiotherapy by ANTM | |||||
| 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 |
Sakata, Suoh
× Sakata, Suoh× Fukumura, Akifumi× Mizuno, Hideyuki× Yajima, Nobuhiro Takase Saki Uesaka Tetsuro Katayose Kaori× Yamashita, Katsuhisa Narita Wataru× 福村 明史× 水野 秀之 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In 2007, the Association for Nuclear Technology in Medicine (ANTM) set up an external audit system to check doses of high energy X-rays used in radiotherapy. The audits are based on measurements made with glass dosimeters (GD-302M, Ashahi Technoglass, Co.) that consist of fluorescent glass of rod type. In the audit, glass dosimeters are sent to institution by delivery service according to the request. After the irradiation of certain dose glass dosimeters are returned to ANTM, and the dose given to dosimeter is evaluated at ANTM Dose Calibration Center. The dose is compared with the one stated by the institution, and results of the audit are reported to the institution. Initially, audits by ANTM were limited to outputs of standard condition. However, from 2010, objects of the audit have been expanded to field and wedge conditions. By the end of 2010, 499 beams of 187 treatment machines have been audited by this system. For 320 beams of reference condition the mean and standard deviation of the ratio of doses were 1.043 and 0.0101. In 2010 (the first year of non-reference condition service), the numbers of beams checked with wedge factor and for field factor were 53 and 126, respectively. | |||||
| 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 | Japan-Korea Joint Meeting on Medical Physics and 11th Asia-Osecania Congress of Medical Physics | |||||
| 発表年月日 | ||||||
| 日付 | 2011-10-01 | |||||
| 日付タイプ | Issued | |||||
