基于综合法的用于灭菌加速器的电子枪设计

 从优于传统的图解法和缩尺法的角度，简要介绍了用于设计收敛型皮尔斯电子枪的“综合法”。采用综合法重新设计了现有的用于灭菌加速器的热阴极电子枪，并对应用综合法的合理性进行了讨论。依据综合法给出电子枪的主要参数初值，由EGUN程序进行电子枪模拟计算，完成了聚焦极和阳极形状的设计。最终设计了出口束流强度1A，电流密度较均匀，归一化发射度小于4mm·mrad的电子枪，符合实际工程需要。

Design of convergent Pierce electron gun of accelerator for radiation sterilization by the method of synthesis

A synthesis technique for the preliminary design of convergent Pierce electron guns is introduced briefly which has a series of advantages over the traditional methods. A thermal cathode electron gun used in the accelerator for radiation sterilization with the synthesis method is redesigned, and the validity of this method is proved. Based on the preliminary design parameters given by the synthesis method, a simulating calculation program, EGUN, was used in the numerical figure design of the focusing electrode and the anode. The final results can meet the engineering requirement as the current being 1A, the normalized emittance being less than 4 mm·mrad, and the final current density showing uniformity.