康普顿光源特性的理论与模拟研究
Theoretical and simulation studies of characteristics of a Compton light source
摘要：
激光束与相对论性电子束的康普顿散射已被用于在许多设施中产生强烈的、高度偏振的和几乎单能的X射线或伽马射线束。预测康普顿伽马射线束的空间、光谱和时间特性的能力对于康普顿光源的操作的优化以及对于利用康普顿束的应用是至关重要的。在本文中，我们提出了两种方法，一个基于解析计算和另一个基于蒙特卡罗模拟，研究康普顿散射过程中的各种电子和激光束参数以及不同的γ束准直条件。这些方法已成功地应用于表征康普顿伽马射线束，在杜克大学的高强度伽马射线源（HIGS）设施的实验结果进行基准测试后。
英文摘要：
Compton scattering of a laser beam with a relativistic electron beam has been used to generate intense, highly polarized and nearly monoenergetic x-ray or gamma-ray beams at many facilities. The ability to predict the spatial, spectral and temporal characteristics of a Compton gamma-ray beam is crucial for the optimization of the operation of a Compton light source as well as for the applications utilizing the Compton beam. In this paper, we present two approaches, one based upon analytical calculations and the other based upon Monte Carlo simulations, to study the Compton scattering process for various electron and laser beam parameters as well as different gamma-beam collimation conditions. These approaches have been successfully applied to characterize Compton gamma-ray beams, after being benchmarked against experimental results at the High Intensity Gamma-ray Source (HIGS) facility at Duke University.
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