4. FROM THE VIEW POINT OF IT'S STANDARDS AND TRACEABILITY

Abstract

ETL exposure standards for X-rays and it's beam qualities for calibration of measuring instruments are described. Several problems concerned to X-ray spectra are discussed. National standards for high energy X-ray, neutron measurement, beta-ray measurements and radioactivity measurements are introduced briefly. ETL services relevant to establishing traceability to the national standards for ionizing radiation are described.