Superheaded drop bubble neutron dosimeter performance in a work environment

Abstract

Bubble dosimeters offer a unique combination of sensitivity, immediate results, and dose equivalent response, but their use Pen Type; The drops and matrix are in a small syringe, and the dose is read from the displacement. This prototype device, produced for NAVSWC, led to a displacement device using the standard APFELm cartridge. has been limited by temperature and vibration. To determine their practicality, we simulated a large operation in an air conditioned radiation work environment. We tested 120 devices of three types. The batch homogeneity and reproducibility were about 20%, and the lower limit of detection was about 10 pSv(1 mrem). The dose equivalent indicated by bubble dosimeters agreed with remmeters and spectrometers more closely than did the dose indicated by conventional dosimeters.