Update of high voltage isolation control and monitoring system for HVE-400 ion implanter Chengbo Li, Xuepeng Sun, Zhiguo Liu, Chungang Guo and Xiaoming Li EPJ Techn Instrum, 11 1 (2024) 4 Published online: 04 April 2024 DOI: 10.1140/epjti/s40485-024-00110-2