NEUTRON FIELD EXPOSURE ESTIMATION USING PASSIVE CR-39 DETECTORS WITHIN A WATER TANK USING A MODERATED PuBe NEUTRON SOURCE

Solid State Nuclear Track Detectors (SSNTD) are wide used in nuclear track detection and analysis. After chemical etching in alkaline solution, the track spot in CR-39 detector can be assessed using optical microscope. In this paper it is presented the use of SSNTD type CR-39 for neutron field exposure estimation within a water tank using a PuBe neutron source. The paper presents the experimental calibration factor to convert gray level of the etched CR-39 detector to personal equivalent dose. In this work also is presented the track size analysis for small radius of the track related to incident energy. The calibration was performed with respect to calibrated TLD 8806 detectors.