Results from ICCHIBAN-3 and -4 Intercomparison Experiments for Space Radiation Instruments

Intercomparison experiments (ICCHIBAN) for space radiation dosimetry instruments with heavy ion beams at HIMAC in NIRS have been performed for three years, starting in Feb. 2002. These experiments were performed with the participation of 16 space agencies, institutes and universities in 10 nations. The experiments are dedicated to calibrate and intercompare the response of instruments to radiation of charge and energy found in the space environment and to aid in understanding and resolving discrepancies in past space radiation dosimetric measurements. This paper summarizes results obtained from the ICCHIBAN-3 and ICCHIBAN-4 experiments. This ICCHIBAN project has been extended from the NIRS HIMAC to include the experiments at the Loma Linda Univeristy Medical Center in California using proton beams and the NASA Space Radation Laboratory at the Brookhaven National Laboratory in New York for higher energy and charged particle beams.35th Scientific Asseml