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Analysis of the uncertainties in the dose audit system using radiophotoluminescent glass dosimeters in Japanese radiotherapy units
https://repo.qst.go.jp/records/86176
https://repo.qst.go.jp/records/861767cb8d281-1d24-478d-a4bd-07dd0d0c7719
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-04-04 | |||||
| タイトル | ||||||
| タイトル | Analysis of the uncertainties in the dose audit system using radiophotoluminescent glass dosimeters in Japanese radiotherapy units | |||||
| 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 |
Hideyuki, Mizuno
× Hideyuki, Mizuno× Wataru, Yamashita× Nobuhiro, Takase× Taku, Nakaji× Shigekazu, Fukuda× Okuyama, Hiroaki× Hideyuki, Mizuno× Wataru, Yamashita× Nobuhiro, Takase× Taku, Nakaji× Shigekazu, Fukuda |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A dosimetry audit of radiotherapy units in Japan was performed using radiophotoluminescent glass dosimeters (RPLDs). This study analyses the uncertainties associated with the procedure for determining the absorbed dose by an RPLD from a high-energy photon beam in radiotherapy units. The absorbed dose is derived using six parameters: the indicated value given by the RPLD, the individual dosimeter sensitivity correction factor for each element, the calibration coefficient for the reference radiation quality, the correction factor for the radiation quality, the correction factor for the phantom material, and the correction factor of nonlinearity. The uncertainty of each parameter was estimated based on the ISO standard methodology, “Guide to the Expression of Uncertainty in Measurement.” The estimated combined standard uncertainty of the dose measured by RPLD was 1.4% under the reference condition. This value was compared to the standard deviation of the difference between the measured and intended doses obtained from the actual audit results (4,447 beams from 577 hospitals) over 13 years. The average percentage difference between the measured and calculated doses under the reference condition was 0.4%, with a standard deviation (k=1) of 1.3%. The results were consistent with the uncertainty estimated by this report and demonstrate the reliability of the RPLD dosimetry method. |
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| 書誌情報 |
Radiation Measurements 巻 153, p. 106753, 発行日 2022-04 |
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| 出版者 | ||||||
| 出版者 | Elsevier B.V. | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1350-4487 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.radmeas.2022.106753 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S1350448722000488 | |||||
