Commissioning of the Beam Instrumentation System of CSNS
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J.L. Sun, W.L. Huang, F. Li, P. Li, R.Y. Qiu, Zh.H. Xu, T. Yang
IHEP CSNS, Guangdong Province, People’s Republic of China
M. Meng, J.M. Tian, T.G. Xu, L. Zeng
IHEP, Beijing, People’s Republic of China
China Spallation Neutron Source (CSNS) accelerator complex consists of a front end, an 80 MeV DTL LINAC, and a 1.6 GeV Rapid Cycling Synchrotron (RCS). It is designed with a beam power of 100 kW in the first phase and reserves upgrade capability to 500 kW in the second phase. CSNS has started user operation at 20 kW after the initial beam commissioning in 2018, the beam power is quickly up to 50 kW and 80 kW by two times beam commissioning in between the user beam time 2019, and finally reached 100kW, the design goal, in February 2020. This talk gives the experiences and most recent status of beam instrumentation system of CSNS during the beam power ramping, as well as future upgrade plan for CSNS-II.
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Consideration and Design of HEPS Beam Instrumentation
J.H. Yue, J.S. Cao, Y.Y. Du, J. He, F. Liu, Z. Liu, Y.H. Lu, H.Z. Ma, Y.F. Sui, L. Wang, S.J. Wei, T.G. Xu, J. Yang, Q. Ye, D. Yin, L. Yu, X.E. Zhang, J.X. Zhao, X.Y. Zhao, Y. Zhao, D.C. Zhu
IHEP, Beijing, People’s Republic of China
High Energy Synchrotron Photon Source（HEPS）is an ultra-low emittance light source, of which the energy is 6 GeV, the current is 100-200mA, so it is more difficult to the physics design and hardware design. To the beam instrumentation, sub-micron level beam position measurement and controlling system, sub-micron synchrotron measurement system based x-ray and bunch by bunch feedback system are the technologies which we need to master and to develop. Beam position measurement system is based on digital technology; it is difficult to design and home-made. Emittance measurement of storage is relied on the accuracy measurement of beam profile, of which the resolution is sub-micron level; x ray KB mirror imaging system can meet such high resolution requirement and a good choice. bunch by bunch feedback systems are used to restrin the beam instabilities. In this article, the author introduces the beam instrumentations in detail.
