| Title |
Development and Test Operation of the Prototype of the New Beam Interlock System for Machine Protection of the RIKEN RI Beam Factory |
| Authors |
- M. Komiyama, M. Fujimaki, N. Fukunishi, A. Uchiyama
RIKEN Nishina Center, Wako, Japan
- M. Hamanaka, K. Kaneko, R. Koyama, M. Nishimura, H. Yamauchi
SHI Accelerator Service Ltd., Tokyo, Japan
- A. Kamoshida
National Instruments Japan Corporation, MInato-ku, Tokyo, Japan
|
| Abstract |
We have been operating the beam interlock system (BIS) for machine protection of the RIKEN RI Beam Factory (RIBF) since 2006. It stops beams approximately 15 ms after receiving an alert signal from the accelerator and beam line components. We continue to operate BIS successfully; however, we are currently developing a successor system to stop a beam within 1 ms considering that the beam intensity of RIBF will continue to increase in the future. After comparing multiple systems, CompactRIO, a product by National Instruments, was selected for the successor system. Interlock logic for signal input/output is implemented on the field-programmable gate array (FPGA) because fast processing speed is required. On the other hand, signal condition setting and monitoring do not require the same speed as interlock logic. They are implemented on the RT-OS and controlled by using experimental physics and industrial control system (EPICS) by setting up an EPICS server on the RT-OS. As a first step in development, a prototype consisting of two stations that handle only digital alert signals was developed and installed in part of the RIBF in the summer of 2022 (224 input contacts). The signal response time of the prototype, measured with an oscilloscope, averaged 0.52 ms with both stations (the distance between two stations is approximately 75 m). Furthermore, by additionally installing a pull-up circuit at each signal input contact of the system, the system response time was successfully reduced to approximately 0.13 ms.
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| Paper |
download TUPDP050.PDF [0.669 MB / 5 pages] |
| Poster |
download TUPDP050_POSTER.PDF [0.811 MB] |
| Cite |
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| Conference |
ICALEPCS2023 |
| Series |
International Conference on Accelerator and Large Experimental Physics Control Systems (19th) |
| Location |
Cape Town, South Africa |
| Date |
09-13 October 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker RW Schaa (GSI, Darmstadt, Germany); Andy Götz (ESRF, Grenoble, France); Johan Venter (SARAO, Cape Town, South Africa); Karen White (SNS, Oak Ridge, TN, USA); Marie Robichon (ESRF, Grenoble, France); Vivienne Rowland (SARAO, Cape Town, South Africa) |
| Online ISBN |
978-3-95450-238-7 |
| Online ISSN |
2226-0358 |
| Received |
03 October 2023 |
| Revised |
09 October 2023 |
| Accepted |
14 December 2023 |
| Issued/td>
| 18 December 2023 |
| DOI |
doi:10.18429/JACoW-ICALEPCS2023-TUPDP050 |
| Pages |
645-649 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 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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