Monte Carlo simulation of bremsstrahlung emission by electrons
Monte Carlo simulation of bremsstrahlung emission by electrons
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DOI：
10.1063/1.1473684
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发表时间：
2002-04-29
影响因子：
4
通讯作者：
Salvat, F
中科院分区：
文献类型：
--
作者：
Acosta, E;Llovet, X;Salvat, F
本文介绍了一种用数值截面法模拟快电子韧致辐射的算法。它基于双微分截面的自然因式分解，以及具有给定能量的光子的固有角分布可以非常接近于洛伦兹增强偶极子分布的事实。这种角分布的参数随着靶原子的原子序数以及发射的电子和光子的能量而平滑地变化。厚靶韧致辐射的模拟结果与实验数据进行了比较。(C)2002年美国物理学会。
An algorithm for the simulation of bremsstrahlung emission by fast electrons using numerical cross sections is described. It is based on natural factorization of the double-differential cross section and on the fact that the intrinsic angular distribution of photons with a given energy can be very closely approximated by a Lorentz-boosted dipole distribution. The parameters of this angular distribution vary smoothly with the atomic number of the target atom and with the energies of the projectile's electron and the photon emitted. Results from simulations of thick-target bremsstrahlung are compared with experimental data. (C) 2002 American Institute of Physics.