Abstract
We overview the system design of the Pohang Light Source-II (PLS-II), and demonstrate that synchrotron radiation is the cause of a recent incident that damaged the vacuum components. To preclude further incidents, we designed a system that shuts off the beam if such damage is imminent. We used an ANSYS simulation to estimate the appropriate time allowed for this shut-off then. A Fast Interlock System is implemented to accomplish beam shut-off within this time. In bench test, this system shut down the beam within the acceptable time. The installation and the operation of the Fast Interlock System in PLS-II is planned.
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References
Y. Sohn et al., J. Korean Phys. Soc. 73, 1147 (2018).
T. Hara et al., J. Synchrotron Radiat. 5, 406 (1998).
A. Madur et al., in Proceedings of PAC09, MO6PFP087 (Vancouver, BC, Canada, 2009).
M. E. Couprie, presented at ICFA Workshop on Future Light Sources, Thomas Jefferson National Accelerator Facility, USA (2012).
X. E. Lin and D. H. Whittum, Stanford Linear Accelerator Center PUB-8393 (2000).
Y. Suetsugu, in Proceedings of the Joint International Accelerator School (CERN, Geneva, 2016).
J-C. Huang et al., Nucl. Instrum. Methods Phys. Res. A 775, 162 (2015).
T. Ha, High-Brightness Synchrotron Light Source Workshop, Pohang Accelerator Laboratory (2017).
Acknowledgments
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF-2019R1C1C1003412, NRF-2017R1D1A1B03033192).
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Lee, M., Ha, T., Lee, J. et al. Fast Interlock System for Machine Protection in PLS-II. J. Korean Phys. Soc. 76, 301–305 (2020). https://doi.org/10.3938/jkps.76.301
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DOI: https://doi.org/10.3938/jkps.76.301