Two year operational experience with the TPS vacuum system

8th International Particle Accelerator Conference

Yang, Y.C.^1 ; Chan, C.K.^1 ; Sheng, I.C.^1 ; Huang, I.T.^1 ; Chung, J.Y.^1 ; Liang, C.C.^1

National Synchrotron Radiation Research Center, Hsinchu Science Park, 101 Hsin-Ann Road, Hsinchu

30076, Taiwan^1

关键词: Insertion device;    Operational experience;    Photon sources;    Pressure burst;    Superconducting cavities;    Third-generation synchrotron light sources;    Three orders of magnitude;    Vacuum chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/874/1/012103/pdf
DOI  :  10.1088/1742-6596/874/1/012103

来源: IOP

【 摘 要 】

The Taiwan Photon Source (TPS), a 3-GeV third generation synchrotron light source, was commissioned in 2014 December and is now currently operated in top-up mode at 300mA for users. During the past two years, the machine was completed to meet design goals with among others the installation of superconducting cavities (SRF), the installation of insertion devices (ID) and the correction of vacuum chamber structure downstream from the IDs. The design goal of 500mA beam current was achieved with a total accumulated beam dose of more than 1000Ah, resulting in three orders of magnitude reduction of out-gassing. As the beam current was increased, a few vacuum problems were encountered, including vacuum leaks, unexpected pressure bursts, etc. Vacuum related issues including high pressure events, lessons learned and operational experience will be presented and discussed in this paper.