DOES THE PHOTON-BEAM QUALITY FACTOR DEPEND ON THE TYPE OF IONIZATION-CHAMBER

被引：2
|
作者：
CHRIST, G
MAJOR, J
NUSSLIN, F
机构：
[1] Abteilung Medizinische Physik, Radiologische Universitätsklinik Tübingen, Hoppe-Seylerstr. 3
来源：
RADIOTHERAPY AND ONCOLOGY | 1995年 / 36卷 / 02期
关键词：
PHOTON BEAM QUALITY FACTOR; TPR(10)(20); IONIZATION DOSIMETRY;
D O I：
10.1016/0167-8140(95)01602-D
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
The photon beam quality factor Q of 6- and 15-MV photon beams has been measured using different types of thimble ionization chambers with various wall, electrode and insulator materials. Some types of chambers seem to overestimate the corresponding e-value by 0.4% (6 MV) and 0.7%(15 MV), respectively. The effect on the stopping power ratio water to air and on the pertubation correction will be discussed.
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页码：153 / 155
页数：3
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