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Report No.

Pulse based data archive system and analysis for current and beam loss monitors in the J-PARC RCS

Hayashi, Naoki ; Hatakeyama, Shuichiro; Yamamoto, Kazami  

The data archive system in the J-PARC 25-Hz Rapid-Cycling Synchrotron (RCS) records the beam intensity and the beam loss monitor (BLM) pattern for all pulses. The system is based on the common memory and utilizes the timing system of the J-PARC. Although its time resolution is limited, it is useful to detect rare events or phenomena appearing with only higher accelerator repetition. Using these data, the stability of the beam intensity, particularly ion source or the relation between BLM patterns and its causes can be studied pulse-by-pulse basis and it would make use of future improvements.



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