Paper |
Title |
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MOPV015 |
Control System of the SRILAC Project at RIBF |
147 |
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- A. Uchiyama, M. Fujimaki, N. Fukunishi, Y. Higurashi, E. Ikezawa, H. Imao, O. Kamigaito, M. Kidera, M. Komiyama, K. Kumagai, T. Nagatomo, T. Nakagawa, T. Nishi, J. Ohnishi, K. Ozeki, N. Sakamoto, K. Suda, T. Watanabe, Y. Watanabe, K. Yamada
RIKEN Nishina Center, Wako, Japan
- A. Kamoshida
National Instruments Japan Corporation, MInato-ku, Tokyo, Japan
- K. Kaneko, R. Koyama, T.O. Ohki, K. Oyamada, M. Tamura, H. Yamauchi, Y.A. Yusa
SHI Accelerator Service Ltd., Tokyo, Japan
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At RIKEN Nishina Center, the SRILAC project has been launched for the search experiments of super-heavy-elements with atomic numbers of 119 and higher. The main points of the SRILAC project are as follows. Superconducting RIKEN Linear Accelerator (SRILAC) was newly installed at downstream of existing accelerator (RIKEN Linear Accelerator: RILAC) to enhance beam energy. Additionally, a new RIKEN 28-GHz superconducting electron cyclotron resonance ion source has been implemented at the frontend of SRILAC to increase beam intensity. With that, the SRILAC control system requires corrections and upgrades to the shortcomings of previous RILAC control system, for example control methods for electromagnet power supplies, an machine protection system and an archive system. Moreover, there was also a issue to be solved for methods of integration with small LabVIEW-based systems. To operate efficiently in the SRILAC project, a distributed control system utilizing EPICS should be adopted as in RIBF, a higher-level application protocol needs to be integrated to EPICS Channel Access protocol. In this conference, we report the system implementation, developed tool in detail about SRILAC project.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-ICALEPCS2021-MOPV015
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About • |
Received ※ 13 October 2021 Revised ※ 22 October 2021
Accepted ※ 25 February 2022 Issue date ※ 05 March 2022 |
Cite • |
reference for this paper using
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WEPV038 |
Performance Verification of New Machine Protection System Prototype for RIKEN RI Beam Factory |
742 |
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- M. Komiyama, M. Fujimaki, N. Fukunishi, K. Kumagai, A. Uchiyama
RIKEN Nishina Center, Wako, Japan
- M. Hamanaka, T. Nakamura
SHI Accelerator Service Ltd., Tokyo, Japan
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We report on performance verification of a prototype of a new machine protection system for the RIKEN Radioactive Isotope Beam Factory (RIBF). This prototype was developed to update a beam interlock system (BIS) in operation since 2006. The new system, like the BIS, is configured using a programmable logic controller (PLC). We applied the prototype to a small part of RIBF and started its operation in Sept., 2020. It consists of two separate PLC stations, and there are 28 digital inputs and 23 analog inputs as interlock signals, and 5 digital outputs are used to stop a beam in total. The observed response time averaged 2 ms and 5.7 ms, respectively, within one station and with both stations. When deploying the prototype in the same scale as the BIS, which consists of 5 PLC stations with roughly 400 signals, the response time is estimated to be over 10 ms, which means that it is too long to protect the equipment when the intensity of the beam accelerated at RIBF becomes higher. Therefore, we are starting to redesign a system by adding a field-programmable gate array (FPGA) to shorten the response time significantly rather than repeating minor improvements to save a few milliseconds.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-ICALEPCS2021-WEPV038
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About • |
Received ※ 10 October 2021 Accepted ※ 21 November 2021
Issue date ※ 24 January 2022 |
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Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
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