一种用于模拟电子回旋共振离子源中等离子体动力学和束流形成机制的三维蒙特卡罗代码。

A 3D Monte Carlo code for the modeling of plasma dynamics and beam formation mechanism in electron cyclotron resonance ion sources.

作者信息

Neri L, Mascali D, Celona L, Gammino S, Ciavola G

机构信息

INFN-Laboratori Nazionali del Sud, via S. Sofia 62, 95123 Catania, Italy.

出版信息

Rev Sci Instrum. 2012 Feb;83(2):02A330. doi: 10.1063/1.3670341.

DOI:10.1063/1.3670341

PMID:22380177

Abstract

The code here presented is the first part of a Monte Carlo (MC) self-consistent 3D plasma simulator. It is yet able to solve the equation of motion for thousands of independent charged particles. The procedure allows to understand the consequences of each phenomenon introduced in the evolution steps of the code. MC random selection of starting parameters is used for each particles; the environmental conditions enclosed in the simulation are ECRIS magnetic field, resonant electromagnetic wave, initial plasma density distribution and MC calculation of Spitzer collision. The results of the first simulations explain some typical effects as the hollow beam formation and the main plasma deconfinement mechanism.

摘要

这里展示的代码是蒙特卡罗（MC）自洽三维等离子体模拟器的第一部分。它仍能够求解数千个独立带电粒子的运动方程。该程序有助于理解代码演化步骤中引入的每种现象的后果。对每个粒子使用MC随机选择起始参数；模拟中包含的环境条件是电子回旋共振离子源（ECRIS）磁场、共振电磁波、初始等离子体密度分布以及斯皮策碰撞的MC计算。首次模拟的结果解释了一些典型效应，如空心束形成和主要的等离子体约束解除机制。