| Title |
Development of Timing Read-Back System for Stable Operation of J-PARC |
| Authors |
- M. Yang
Sokendai, Ibaraki, Japan
- N. Kamikubota
KEK, Ibaraki, Japan
- N. Kikuzawa
JAEA/J-PARC, Tokai-mura, Japan
- K.C. Sato
J-PARC, KEK & JAEA, Ibaraki-ken, Japan
- Y. Tajima
Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan
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| Abstract |
Since 2006, the Japan Proton Accelerator Research Complex (J-PARC) timing system has been operated successfully. However, there were some unexpected trig-ger-failure events, typically missing trigger events, during the operation over 15 years. When a trigger-failure event occurred, it was often tough to find the one with the fault among many suspected modules. To solve the problem more easily, a unique device, triggered scaler, was devel-oped for reading back accelerator signals. The performance of the module has been evaluated in 2018. In 2021, we measured and observed an LLRF sig-nal as the first signal of the read-back system for beam operation. After firmware upgrades of the module, some customized timing read-back systems were developed, and successfully demonstrated as coping strategies for past trigger-failure events. In addition, a future plan to apply the read-back system to other facilities is discussed. More details are given in the paper.
|
| Paper |
download THPV029.PDF [1.327 MB / 4 pages] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
ICALEPCS2021 |
| Series |
International Conference on Accelerator and Large Experimental Physics Control Systems (18th) |
| Location |
Shanghai, China |
| Date |
14-22 October 2021 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Kazuro Furukawa (KEK, Tsukuba, Japan); Yingbing Yan (SARI,Shanghai, China); Yongbin Leng (SARI,Shanghai, China); Zhichu Chen (SARI,Shanghai, China); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-221-9 |
| Online ISSN |
2226-0358 |
| Received |
20 October 2021 |
| Accepted |
21 November 2021 |
| Issue Date |
17 January 2022 |
| DOI |
doi:10.18429/JACoW-ICALEPCS2021-THPV029 |
| Pages |
927-930 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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