### Cfield optimization for magnetic state selection of cesium beam tube based on PID algorithm

CHEN Shi, WANG Ji, HUANG Liangyu, LIU Zhidong

1. Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou730000，China
• Online:2020-04-25 Published:2020-04-26

Abstract: Optimization for Cfield of magnetic state selection cesium beam tube was introduced. The test system developed for cesium beam tube provided the necessary test environment, and different kinds of PID control algorithms were designed to optimize and analyze Cfield of cesium beam tube. Finally a more reasonable optimization parameter was obtained. By optimizing multiple cesium beam tubes, the frequency difference between the (0~0) peak and ±1 peak of the cesium beam tube was controlled within the range of 42820kHz ± 20Hz. By comparison with the results from an earlier cesium beam tube test platform, the error of the optimal Cfield current does not exceed 002 mA, which verifies the correctness of the optimization results.