Behavior of the beam line pressure in a high-power proton accelerator vacuum system

Abstract

The J-PARC 3Gev Synchrotron is an accelerator that targets a normal operation with a proton beam power output of 1 MW. It is very important issues to prevent the scattering of proton beam in order to achieve the goal. As a countermeasure, it may be necessary to make lower the pressure of the beam line. Therefore pressure behavior of the beam line was investigated to including operation data and the result of 1MW beam power test.