Beam current and energy measurement of the PEFP 20MeV accelerator

The beam test of the Proton Engineering Frontier Project (PEFP) 20 MeV proton linear accelerator started again, after the upgrade of the RF control system. One of the important goals during this test period is to increase the beam current to the design level. Various current transformers were installed along the linac to measure the beam current itself and possible beam loss along the accelerator. Also two sets of beam position and phase monitors (BPPM) were installed at the end of the 20 MeV accelerator to measure not only the beam position and phase but also the beam energy. In this paper, the overall test results including beam current and energy measurement are presented.