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Dose audit using a glass dosimeter for Radiation Therapy Facilities in East-Asian Countries
https://repo.qst.go.jp/records/69849
https://repo.qst.go.jp/records/698490ed4b335-0ba0-4160-81ba-99182aa8cd2f
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2009-09-15 | |||||
タイトル | ||||||
タイトル | Dose audit using a glass dosimeter for Radiation Therapy Facilities in East-Asian Countries | |||||
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 |
Mizuno, Hideyuki
× Mizuno, Hideyuki× et.al× 水野 秀之 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A dose audit using a photoluminescent glass dosimeter was conducted in radiation therapy facilities in a number of East-Asian countries. The audit was performed for the reference condition of linac X-ray beams, which was a 10x10 cm2 field and a 10cm depth with a SSD of 90 cm. Eight facilities from 5 countries, China, Korea, Indonesia, Viet Nam and the Philippines, participated in this audit. The ratios of deviation between the user-stated dose and the NIRS measured dose were analyzed. Among 24 X-rays beams measured from 6 to 20MV, 22 beams were within optimum levels (3%) and 1 beam was out of the optimum level but within the tolerance level (5%). However, 1 beam exceeded the tolerance level. The standard deviation of the ratios of deviation was 1.4%. A thorough and lengthy investigation was performed regarding this beam, which was observed to have a large rate of deviation (+6.1%). Finally, the cause became clear when it was deter-mined that an incorrect pressure value in the calibration of a monitoring unit had been used. This event shows the impor-tance of external audit in radiation therapy. | |||||
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 | WORLD CONGRESS 2009 | |||||
発表年月日 | ||||||
日付 | 2009-09-12 | |||||
日付タイプ | Issued |