JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{yang:pcapac2022-weo22, author = {M. Yang and N. Kamikubota and N. Kikuzawa and K.C. Sato and Y. Tajima}, title = {{Applications of Timing Read-Back System in J-PARC Main Ring}}, % booktitle = {Proc. PCaPAC'22}, booktitle = {Proc. 13th Int. Workshop Emerging Technol. Sci. Facil. Controls (PCaPAC'22)}, pages = {8--11}, eid = {WEO22}, language = {english}, keywords = {timing, power-supply, operation, PLC, controls}, venue = {Dolní Brežany, Czech Republic}, series = {International Workshop on Emerging Technologies and Scientific Facilities Controls}, number = {13}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {02}, year = {2023}, issn = {2673-5512}, isbn = {978-3-95450-237-0}, doi = {10.18429/JACoW-PCaPAC2022-WEO22}, url = {https://jacow.org/pcapac2022/papers/weo22.pdf}, abstract = {{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.}}, }