【摘要】 <正> 为了提高束流在输运系统中的传输效率,改善靶点的束斑特性,本文用TRANSPORT程序对四川大学回旋加速器束流传输系统的光学特性进行了计算和分析。 TRANSPORT是采用矩阵方法计算带电粒子束在输运系统中光学特性的通用计算机程序,并能利用非线性最小二乘法和耦合系数方法对系统参数实行优化,广泛用于束流传输系更多还原

【Abstract】 A program TRANSPORT has been used to calculate and analyze the ion optical characteristics of the cyclotron beam transport system in Sichuan University. The results show that: i) the calculations agree with the performance in practice under the parame-ters operated now in this cyclotron; ii) if the geometry parameters are changed the field parameters will be adjusted moderately, the size of beam envelope in all lines will be decreased, the beam intensity reached the targets will be increased and the beam spot property on the targets will be better.更多还原