Charge-Integration-Mode Detection for Measurements of Particle Beams

Abstract

In this paper, we report on the beam-detection technique in a charge-integration mode. The novel radiation-detection method has been applied to detectors for quantitative measurements of proton and fast-neutron beams. First, we developed a beam detector equipped with a scintillation-fiber array and a 46-channel silicon photodiode to measure proton-beam induced fast neutrons. Second, the scintillator fibers in the detector were replaced by LYSO crystals to measure proton beams provided by a 50-MeV proton cyclotron. The detectors operating in the current detection technique were tested with fast-neutron and proton beams provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). We conclude from the beam tests that the current detectors operating in the charge-integration mode are capable of qualified and reliable measurements both for proton and fast-neutron beams.