Some Experiences on BEPCII SRF System Operation

摘要

The Superconducting Radio Frequency (SRF) system of the upgrade project ofBeijing Electron Positron Collider (BEPCII) has been in operation for almost 8years. The SRF system has accelerated both electron and positron at the designbeam current of 910 mA successfully, and a high beam intensity colliding of 860mA (electron)*910 mA (positron) has been achieved in April 2014. Many problemswere encountered during the operation, among which some were solved and someremain unsolved. This paper will describe some experiences on BEPCII SRF systemoperation, including the symptoms, causes and solutions.