Dosimetry for a microbeam array generated by synchrotron radiation at SPring-8

被引：11

作者：

Torikoshi, Masami ^{[1
]}

Ohno, Yumiko ^{[1
]}

Yagi, Naoto ^{[2
]}

Umetani, Keiji ^{[2
]}

Furusawa, Yoshiya ^{[1
]}

机构：

[1] Natl Inst Radiol Sci, Inage Ku, Chiba 2638555, Japan

[2] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan

来源：

EUROPEAN JOURNAL OF RADIOLOGY | 2008年 / 68卷 / 03期

关键词：

Dosimetry; Microbeam; Kodak EDR2 film; Synchrotron radiation;

D O I：

10.1016/j.ejrad.2008.04.052

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A microbeam array was formed with a multi-slit collimator (MSC) for research on radiation therapy (MRT). Kodak EDR2 film was used to measure the dose distribution of the microbeam, array. The calibration curve of optical density of the film with respect to a dose was established using a standard Farmer chamber and Co-60 gamma-ray source. The peak dose of 3.6 Gy/s at the maximum was derived from the film dosimetry using the calibration curve. The uncertainty was estimated to be 5% which was mainly attributed to the uncertainty of the calibration. It was found that the ionization chamber used for monitoring the dose during the MRT experiments gave lower dose by about 30% than the dose derived from the film dosimetry. (C) 2008 Elsevier Ireland Ltd. All rights reserved.

引用

页码：S114 / S117

页数：4

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