Bulletin of the Lebedev Physics Institute ( IF 0.4 ) Pub Date : 2020-10-20 , DOI: 10.3103/s1068335620090055 V. V. Siksin , A. E. Shemyakov
Abstract
Experimental measurements of the Bragg peak depth by two methods: the air ionization chamber and the digital imaging detector (DIDE) for proton energies of 50, 100, and 170 MeV are compared. The principle of operation of a new detector type, i.e., the DIDE for measuring the energy release region of the proton beam passing through a water phantom is considered. The DIDE detector is a coordinate meter of the Bragg peak depth profile which, using a known energy dependence of the dose, i.e., “quality curve,” can recalculate the coordinate to the doze depth profile (with controlled accelerator output stability). It is indicated that the binning (pixel summing) mode is most important for light collection from radioluminescence. In measuring the coordinate region of energy release (Bragg peak) by the detector, the result appears almost instantaneously and with an accuracy regulated by the IAEA.
中文翻译:
PPC-40电离室和数字成像检测器对布拉格峰深度的测量
摘要
比较了两种方法对布拉格峰深度的实验测量结果:空气电离室和数字成像检测器(DIDE),其质子能量分别为50、100和170 MeV。考虑了一种新型检测器的工作原理,即用于测量通过水体模的质子束能量释放区域的DIDE。DIDE检测器是布拉格峰值深度轮廓的坐标仪,使用剂量的已知能量依赖性,即“质量曲线”,可以重新计算到the睡深度轮廓的坐标(具有受控的加速器输出稳定性)。已经表明,合并(像素求和)模式对于从放射发光收集光最重要。在通过探测器测量能量释放的坐标区域(布拉格峰)时,