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Report No.

Beam monitoring system for RFQ test stand of J-PARC linac

Miyao, Tomoaki*; Miura, Akihiko ; Kondo, Yasuhiro ; Morishita, Takatoshi ; Sugimura, Takashi*; Ouchi, Nobuo ; Oguri, Hidetomo ; Maruta, Tomofumi*; Naito, Fujio

In J-PARC linac, a project for energy and intensity upgrade has been progressed using 50 mA RFQ(Radio-Frequency-Quadrupole) linac cavity. Because the RFQ had already fabricated, test stand for its performance test was newly produced. In the test stand, we designed and fabricated the monitoring system including beam current monitors for the beam transmission measurement and the beam phase monitors for the energy measurement. We will refer the detail of the monitoring system and the data obtained during the performance test. New testing devices are also mentioned.



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