Strategy on quality assurance in radiation fields and calibration techniques at FRS of JAEA

The FRS, Facility of Radiation Standards, of JAEA has been developing and supplying the fields of X-, gamma-, beta-rays and neutrons for calibrating the radiation measuring devices used for radiation protection monitoring since 1980. Much effort has been devoted in recent years toward the development of the neutron and gamma-ray fields using a 4 MV Van de Graaff accelerator. In November 2006, we just started to open the FRS radiation reference fields to national laboratories, private industry and academia. Almost the fields are traceable to national standards, but a laboratory quality assurance is not yet realized. We plan to obtain the calibration laboratory accreditation of JCSS, Japan Calibration Service System, which is based on ISO-17025. Furthermore, the quality assurance is planed to be extended to the international credibility in the future, and we hope to play a leading role in the calibration facilities in Asia. (author)