Speaker
Description
The 3GeV Rapid-Cycling Synchrotron (RCS) at J-PARC supplies the proton beam to the Materials and Life Science Experimental Facility (MLF), where it is utilized for the production of secondary particle beams such as muons and neutrons. Secondary particle beams are used in experiments in condensed matter physics, polymer chemistry, biophysics, and other fields. Experiments requiring high time resolution demand an RCS extraction beam with a short-bunch width. The RCS extraction beam is shortened through bunch rotation driven by a manipulation of the fundamental RF voltage. The present study investigated the optimization of this method. In addition, the effectiveness of employing a second-harmonic RF voltage in combination was evaluated. Detailed results on short-bunch extraction in the RCS are reported in this presentation.
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