Abstract

Ultraviolet radiation dosimetry was determined by using CN-85 , CR-39, LR-115 nuclear track detectors – NTD with measuring of ; number of track-NT , etching time-TB , nuclear track diameter - DT and etching velocity -VD . By this study appear the increasing in etching time-TB of NTD samples which irradiated by UV-radiation do not pure effect on the number of track - NT , comparing with un-irradiated samples . The increasing in UV-irradiation make decreasing in etching time- Topt for CR-39 , CN-85 , LR-115 nuclear track detectors with percent of 20% , 25% , 50% respectively , comparing with un– irradiated sample at the radiation dose 3.77x103 erg /mm2 . . The increasing of irradiation dose make increasing in nuclear track diameter-DT with increase in etching time-TB at the radiation dose 300x103erg / mm2 for LR-115 detector . This study showing there was increasing in the percent value of etching velocity -VB with increasing in radiation dose for CR-39 , CN-85 . The increasing in nuclear track diameter- DT with increasing in radiation dose was appearing as a resulted of energy of radiation and producted free radicals which interact with chemical etching solution . This study optioned by using nuclear track detectors CN-85 , CR-39 for determination the radiation dosimetry through measuring of etching velocity -VB butter than LR-115 detector . PACS:- 29.40-n,29.70-e,87.60.M

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The article was added to IASJ on 2012-12-05

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