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原子蒸气激光同位素分离研究进展综述-(I):理论研究

DOI: 10.13336/j.1003-6520.hve.2015.09.001, PP. 2825-2836

Keywords: 原子蒸气激光同位素分离,金属原子化,激光光电离,离子引出,等离子体

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Abstract:

原子蒸气激光同位素分离(atomicvaporlaserisotopeseparation)过程主要包括了金属的原子化过程、蒸气原子中目标同位素原子的激发电离过程和目标同位素离子的引出收集过程。为了深入理解原子蒸气激光同位素分离的机制,本论文综述了目前有关原子蒸气激光同位素分离系统中各子过程的理论研究(特别是数值模拟)方法,包括描述原子化过程中坩埚内部传热与流动特性的流体模型以及液态金属蒸发膨胀过程的蒙特卡洛粒子模拟或基于Bhantagar-Gross-Krood(BGK)方程的动力学方法,描述激光光电离过程的经典速率方程和半经典理论以及离子引出过程的电子平衡流体模型和MonteCarlo粒子模拟方法;综述了采用上述方法研究原子蒸气激光同位素分离过程所取得的主要进展和需要进一步开展的工作,这对今后继续深入开展该领域的研究工作具有一定的借鉴作用。

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