Neutron Spectrometry and Dosimetry Using CR-39 Detectors

Abstract

Solid polymeric track detectors (SPTDs), due to their insensitivity to low LET radiations and integrating nature of signal registration, are found to be effective and convenient for neutron measurements, particularly in pulsed and mixed radiation fields such as in particle accelerator environments. This paper in addition to reviewing some of the existing methods of neutron spectrometry and dosimetry, explores new approaches on the use of SPTDs for neutron measurements, elaborates on the extended energy response and rapid etching techniques of SPTDs along with some new results. Microwave induced chemical etching (MICE) technique, recently introduced for rapid and efficient processing of track detectors is discussed in the paper.Contents of Paper

Parameters Affecting Bulk Etch Rate VBfor CR-39 Detector

“…The average bulk etching rate increases with the increase of chemical solution normality. It is due to the fact that once the etching process begins, more etchant concentration leads up to the growth in the etching of the detectors material, and hence higher mean of bulk etch rate.The great increase of concentration leads to an increase in chemical reaction processes with the detector material according to [15].…”