CAJ | 학술논문

为探索用于原子蒸气激光同位素分离(AVLIS)的简单有效的离子引出方法，用二维流体理论电子平衡模型计算比较了3种静电场方法:平行板电场法，‘Π’型电极法，改进‘M’型电极法。计算发现，二维流体理论电子平衡模型并不能很好地描述‘Π’型电极法。对另外两种静电场方法，计算了不同外加电压、不同的初始原子密度和不同的目标同位素丰度等条件下的离子引出情况。从计算结果可以看出，改进‘M’型电极法不论是从离子引出时间还是从碰撞损失率,都要比平行板电极法好得多;当外加电压较高或初始原子密度较高时，这种好处就更加明显。因此，改进‘M’型电极法是一种可供实际采用的比较好的静电场方法。
위탐색용우원자증기격광동위소분리(AVLIS)적간단유효적리자인출방법，용이유류체이론전자평형모형계산비교료3충정전장방법:평행판전장법，‘Π’형전겁법，개진‘M’형전겁법。계산발현，이유류체이론전자평형모형병불능흔호지묘술‘Π’형전겁법。대령외량충정전장방법，계산료불동외가전압、불동적초시원자밀도화불동적목표동위소봉도등조건하적리자인출정황。종계산결과가이간출，개진‘M’형전겁법불론시종리자인출시간환시종팽당손실솔,도요비평행판전겁법호득다;당외가전압교고혹초시원자밀도교고시，저충호처취경가명현。인차，개진‘M’형전겁법시일충가공실제채용적비교호적정전장방법。
Simplier and more efficient ion extraction methods for atomicvapor laser isotope separation (AVLIS) were evaluated using a 2-D electron-equilibrium model to compute and compare three electrostatic methods: the parallel electrode method, the ‘Π’ type electrode method, and the improved ‘M’ type electrode method. The results show that the 2-D electron-equilibrium model can not accurately describe the ‘Π’ type electrode method. For the other two methods, the ion extraction characteristics were computed for various conditions such as applied voltage, initial atom density and abundance of the aimed isotope. The results show that the improved ‘M’ type electrode method is much better than the parallel electrode method regardless of the ion extraction time or the collision loss ratio; and this benefit is more distinct when the applied voltage or the initial atom density is high. Therefore, the improved ‘M’ type electrode method is a better electrostatic method which should be adopted in practice.