Whillock M J, Edwards A A
Phys Med Biol. 1978 May;23(3):416-25. doi: 10.1088/0031-9155/23/3/005.
In order to design reliable gas-filled dosemeters it is necessary to have knowledge of the ratios of the stopping powers of various solids and their gaseous equivalents. This paper describes the measurement of the stopping cross-sections of ethylene and its polymer polyethylene using alpha particles, and compares the measurements with results published by other workers. The results indicate that there is no difference between the two sets of values, within the quoted errors. Reasons are suggested to account for part of the discrepancy between our results and those of others for thin solid sample measurements.
为了设计可靠的充气剂量计，有必要了解各种固体及其气态等效物的阻止本领之比。本文描述了用α粒子测量乙烯及其聚合物聚乙烯的阻止截面，并将测量结果与其他研究人员发表的结果进行比较。结果表明，在引用的误差范围内，两组值之间没有差异。文中提出了一些原因来解释我们的结果与其他人对薄固体样品测量结果之间差异的部分原因。
