Radiation Protection Dosimetry 55:265-271 (1994)
© 1994 Oxford University Press
Mapping of Surface Alpha Contamination using Alpha Track Detectors
Alpha track detectors (LANTRAK) have been used to map highly localised and inhomogeneous alpha emitter contamination on concrete, lead brick, metal, and vinyl floor surfaces. These detectors are easy to use, demonstrate good alpha sensitivity and high immunity to beta and gamma radiations, and can be deployed in hard-to-access locations. Conversion efficiencies were measured ranging from 40% to 73% for radionuclides of interest. Illustrative examples of contamination mapping on a lead brick, tile floor, and a narrow ledge are discussed.