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Report No.

Stabilization of timing system operation of J-PARC Linac and RCS

Takahashi, Hiroki; Hayashi, Naoki ; Ito, Yuichi*; Kawase, Masato*; Sawabe, Yuki*

The timing system data (delay value, status, etc.) of J-PARC Linac and rapid cycling synchrotron is managed by a computer. After updating this hardware, we encountered the problem of data corruption in the timing system. Therefore, we added a function to the software for the timing system VME and investigated the cause of the problem. The investigation results showed a problem with the network connected PCI-Express reflective memory. We implemented measures for stabilizing the timing system operation based on this result.



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