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- K.C. Sato
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
- S. Igarashi
KEK, Ibaraki, Japan
- N. Kamikubota, J. Takano, S. Yamada, N. Yamamoto
J-PARC, KEK & JAEA, Ibaraki-ken, Japan
- S.Y. Yoshida
Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan
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In J-PARC Main Ring (MR), a control system for new skew quadrupole magnets has been constructed. This system is based on EPICS (Experimental Physics and Industrial Control System). The system comprises a YOKOGAWA F3RP61-2L (a PLC controller running Linux), a function generator (Tektronix AFG3000), and a commercial bipolar-DC Amplifier. The function generator is controlled using VXI-11 protocol over Ethernet, and the amplifier is connected to PLC I/O modules with hardwire. Both devices are controlled by the F3RP61-2L. The Function Generator produces a ramp waveform at each machine cycle of 2.48 seconds. The DC amplifire drives the magnet. The control system for skew quadrupole magnets was developed in 2012, and has been in opeation since January, 2013.
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