Study on personal neuron dosimetry-bubble detectors by solid state of nuclear tracks techniques

Neutron solid bubble detector was considered as a unique one for meeting the need of the personal neutron dosimeter recommended by International Committee of radiation protection, ICRP60. It has the flat response for neutron from low energy to high energy, and insensitive for gamma rays. In this work, superheated liquid drops were dispersed into a kind of soft polymer homogeneously. A personal neutron bubble dosimeter has been made, and the sensitivity reached to about 40 bubbles/mrem. The principle and the processing procedure of bubble detector were also introduced in this paper. (authors)