JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Yang, M. AU - Kamikubota, N. AU - Kikuzawa, N. AU - Sato, K.C. AU - Tajima, Y. ED - Plötzeneder, Birgit ED - Schaa, Volker RW ED - Štajminger, Ana TI - Applications of Timing Read-Back System in J-PARC Main Ring J2 - Proc. of PCaPAC2022, Dolní Brežany, Czech Republic, 04-07 October 2022 CY - Dolní Brežany, Czech Republic T2 - International Workshop on Emerging Technologies and Scientific Facilities Controls T3 - 13 LA - english AB - Japan Proton Accelerator Research Complex (J-PARC) timing system has been in operation since 2006. Over the past 16 years, there were trigger-failure events, and some of which seriously affected the operation of J-PARC ac-celerator, especially at Main Ring. To troubleshoot the source of such events more quickly, we decided to devel-op a timing read-back system to read back distributed timing signals at the device side. A PLC-type triggered scaler module was developed as a key of the system. It can count number of pulses in an accelerator cycle and store the counts in a momentary array. Using the module, customized read-back applications for various timing-related signals have been developed: (a) read-back a 25-Hz trigger clock, (b) read-back a pulsed bending magnet trig-ger, (c) read-back a magnet power-supply trigger. These applications were implemented successfully in J-PARC Main Ring, and demonstrated as countermeasure against past trigger-failure events. More details will be given in the paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 8 EP - 11 KW - timing KW - power-supply KW - operation KW - PLC KW - controls DA - 2023/02 PY - 2023 SN - 2673-5512 SN - 978-3-95450-237-0 DO - doi:10.18429/JACoW-PCaPAC2022-WEO22 UR - https://jacow.org/pcapac2022/papers/weo22.pdf ER -