用5种不同的电子光学软件对微波管电子枪进行模拟计算

Simulation of microwave tube electron gun with five different electron optic softwares

对TWTCAD微机版、工作站版本、EGUN,CAMEO以及Orprogr电子光学软件背景和特点作 了一个简单介绍,并利用其模拟计算了11支不同结构的电子枪。将计算得到的导流系数、射程和注腰半径与 实验数据列表对比,结果表明:不同电子光学软件计算不同类型电子枪其计算精度也不一样。在导流系数方 面,EGUN和Orprogr的计算精度较高,绝对平均误差分别为7.18%和7.4%;在射程方面,TWTCAD的计算 精度最高,绝对平均误差为5.69%;在注腰半径方面,Orprogr与实验值偏差较大,绝对平均误差为47.43%,而 工作站版本的计算精度最高,绝对误差仅为2.29%。

The background and character of five different electron optic softwares (TWTCAD, EGUN, CAMEO, Workstation, Orprogr) were introduced, and the simulation of eleven different construction guns were present by the five softwares. After compared the perveance, gunshot and beam waist radius computed by these softwares with the experiment result, it gives the conclusion that different electron optic software has different precision in computing various electron gun, and then provides the error range of each sofwares, which shows that in the perveance, EGUN and Orprogr has the higher precision, its absolute average error is 7.18% and 7.4%. In the gunshot, TWTCAD is the best, which is 5.69%. In the beam waist radius, the Orprogr's absoulte average error is 47.43%, is the worst one, but the Workstation is the best, which is 2.29%.