Center for Physical Sciences and Technology, Savanoriu ave. 231, Vilnius, Lithuania.
J Radiol Prot. 2022 Jan 12;42(1). doi: 10.1088/1361-6498/ac44fb.
The ionising radiation created by high intensity and high repetition rate lasers can cause significant radiological hazard. Earlier defined electron temperature scalings are used for dose characterisation and prediction using Monte Carlo modelling. Dosimetric implications of different electron temperature scalings are investigated and the resulting equivalent doses are compared. It was found that scaling defined by Beg(1997447-57) predicts the highest electron temperatures for given intensities, and subsequently the highest doses. The atomic number of the target, x-ray generation efficiency and interaction volume are the other parameters necessary for the dose evaluation. The set of these operational parameters should be sufficient to characterise radiological characteristics of ultrashort laser pulse based x-ray generators and evaluate radiological hazards of the laser processing facilities.
高强度、高重复率激光产生的致电离辐射会造成严重的放射危害。早期定义的电子温度标度被用于使用蒙特卡罗建模进行剂量描述和预测。研究了不同电子温度标度的剂量学影响，并比较了得到的等效剂量。结果表明，贝格（1997447-57）定义的标度在给定强度下预测出最高的电子温度，从而预测出最高的剂量。目标的原子数、X 射线生成效率和相互作用体积是剂量评估所需的其他参数。这组操作参数应该足以描述基于超短激光脉冲的 X 射线发生器的放射特性，并评估激光加工设施的放射危害。
