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External dose audits for high energy X-rays used in radiotherapy by ANTM
https://repo.qst.go.jp/records/54452
https://repo.qst.go.jp/records/54452915aceff-16c2-40af-9059-85c6c5a97a3d
Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2014-02-02 | |||||
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_5794 | |||||
資源タイプ | conference paper | |||||
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 |
佐方, 周防
× 佐方, 周防× 福村, 明史× 水野, 秀之× Yajima, Kaori× Kanai, Tatsuaki× Takase, Nobuhiro× Uesaka, Saki× Katayose, Tetsuro× Yamashita, Wataru× Narita, Katsuhisa× 佐方 周防× 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. | |||||
書誌情報 |
Abstruct of 6th Japan-Korea Joint Meeting on Medical Physics and 11th Asica-Oceania Congress of Medical Physics 巻 31, 号 Sup.4, p. 181, 発行日 2011-09 |
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出版者 | ||||||
出版者 | Japan Society of Medical Physics | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1345-5362 |