Comparison of graphite-to-water absorbed-dose transfers for Co-60 photon beams using ionometry and Fricke dosimetry

被引：16
|
作者：
Chauvenet, B
Baltes, D
Delaunay, F
机构：
[1] BNM-LPRI, CEA/Saclay, BP n 52
来源：
PHYSICS IN MEDICINE AND BIOLOGY | 1997年 / 42卷 / 11期
关键词：
D O I：
10.1088/0031-9155/42/11/004
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
To derive the absorbed dose to water from a standard of absorbed dose to graphite, the metrology laboratories which apply such a method usually make use of cavity ionization chambers as transfer instruments. In addition, the BNM-LPRI has tested, as such instruments, two types of Fricke dosimeter in its cobalt-60 beam The two procedures are compared and their results are found to be in good agreement (the difference is less than 0.1%). Both procedures are then taken into account for the calculation of the reference value of absorbed dose to water.
引用
收藏
页码：2053 / 2063
页数：11
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