New idea for determining the optimal number of measurements in absorbed dose-to-water measurement of high-energy photon beam

被引：0

作者：

Tsuno, Hayato ^{[1
]}

Sasaki, Koji ^{[1
]}

Matsubayashi, Fumiyasu ^{[2
]}

Koyama, Tomio ^{[3
]}

Oosaka, Akitane ^{[4
]}

Sakamoto, Masataka ^{[5
]}

Hosoki, Kazunori ^{[6
]}

Suzuki, Hidekazu ^{[7
]}

Okano, Emiko ^{[8
]}

机构：

[1] Gunma Prefectural Coll Hlth Sci, Grad Sch Radiol Technol, Maebashi, Gunma, Japan

[2] Japanese Fdn Canc Res, Canc Inst Hosp, Dept Radiat Therapy, Tokyo, Japan

[3] Nagano Red Cross Hosp, Japanese Red Cross Soc, Dept Radiol, Nagano, Japan

[4] Niigata Prefectural Cent Hosp, Dept Radiol, Niigata, Japan

[5] Hamamatsu Univ Sch Med, Dept Radiol, Hamamatsu, Shizuoka, Japan

[6] Tonan Hosp, Dept Radiol, Hokkaidou, Japan

[7] Univ Yamanashi Hosp, Dept Radiol, Yamanashi, Japan

[8] Fujiyoshida Municipal Hosp, Dept Radiol, Yamanashi, Japan

来源：

RADIATION PROTECTION DOSIMETRY | 2023年 / 199卷 / 03期

关键词：

D O I：

10.1093/rpd/ncac262

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents a new idea for estimating the number of measurements required for determining the uncertainty in obtaining the desired water absorbed dose using the variation obtained from multicenter absorbed dose measurement data. The number of dose measurements depends on the performance of each linear accelerator (LINAC) tested and the dosimetry equipment and procedure used. However, optimising the number of data collected for the absorbed dose to water has been inadequately reported. Using the absorbed dose measurement data collected 10 times as a reference value, we will compare the changes in the variation of the measurement results caused by the difference in the number of repeated measurements of the absorbed dose. The number of measurements is determined statistically such that this variation would be smaller than the change in absorbed dose. Thus, we can determine the optimum number of measurements suitable for the variability of each LINAC.

引用

页码：246 / 253

页数：8

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