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Report No.

Development of data aqcuisition system of J-PARC RCS multi-wire profile monitor using multi-channel digitizer

Hatakeyama, Shuichiro; Yoshimoto, Masahiro 

In J-PARC RCS (Rapid Cycling Synchrotron), in order to perform transverse orbit matching of the injection beam, it is used a total of 7 sets of multi-wire profile monitors (MWPMs). It is considered that beam loss around the equipments of injection beam line will be increased significantly because it is planed the beam power from the LINAC will be enforced in this fiscal year. So we will install a new MWPM on the H0 dump line to measure the injection orbit more precicely. In this time, we have developed a new data acquisition system using multi-channel digitizer. As the feature, it is improved the S/N ratio as compared with the present system using a multiplexer. Also the cost of the new system is estimated to be lower than the present system. In this report it is described the performance of the new DAQ system by using real beam with the existing MWPM2.



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