论文标题
带有辐射反作力的通道过程的原子建模包括
Atomistic modelling of the channeling process with radiation reaction force included
论文作者
论文摘要
开发了将辐射反应力纳入MBN Explorer软件包中实现的相对论分子动力学框架中的方法。由于辐射发射，该力导致弹丸能量E的逐渐减少。这种效果对于穿过定向晶体的超相对论弹丸特别强，在这些晶体中经历了强静电场的作用，如最近的实验所示。已经进行了案例研究以对开发方法的初步认可。在200微米厚的单个方向的Si（110）晶体中，已经对平面通道和光子发射过程的过程进行了模拟。已建立和表征了降低E的几种制度。开发代码以包括必要的量子校正的进一步步骤，并提出了可能的算法修改。
Methodology is developed that incorporates the radiation reaction force into the relativistic molecular dynamics framework implemented in the MBN Explorer software package. The force leads to a gradual decrease in the projectile's energy E due to the radiation emission. This effect is especially strong for ultra-relativistic projectiles passing through oriented crystals where they experience the action of strong electrostatic fields as has been shown in recent experiments. A case study has been carried out for the initial approbation of the methodology developed. Simulations of the processes of planar channeling and photon emission have been performed for 150 GeV positrons in a 200 microns thick single oriented Si(110) crystal. Several regimes for the decrease in E have been established and characterized. Further steps in developing the code to include the necessary quantum corrections are identified and possible algorithmic modifications are proposed.
