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Author Jayalaskmi, V. ♦ Rohatgi, Rupali ♦ Sathian, Deepa ♦ Marathe, P. K. ♦ Nair, Sarala ♦ Chourasiya, G. ♦ Kannan, S.
Source IACS Kolkata
Content type Text
Publisher Indian J. Phys.
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword CR-39- PADC ♦ Polycarbonate ♦ Sensitivity ♦ Background
Abstract CR-39 (PADC) a Solid State Nuclear Track Detector., is used as a routinepersonnel monitor. 1800 workers are being monitored quarterly for fast neutron usingCR-39 foils. These foils procured from Pershore Mouldings, UK are very expensive andindigenous development will make the foils cost effective. The aim of this paper isto find a suitable alternative to the imported CR-39 foils for use in personnelmonitoring. The foils from three different manufacturers have been compared with theCR-39 foils from Pershore Moulding, UK, presently in use. Out of the three, onlysample no 1 is promising. It has a background and sensitivity comparable with CR-39presently used. The sample 2 is CR-39 being developed in India, has a relativelyhigh background and poor sensitivity. Efforts are being made to improve the qualityof this sample. The sample 3 was a poly carbonate from local manufacturer whichproduced very few tracks and the standard deviation of track counts was very largeand hence not useful for Personnel Monitoring.
Education Level UG and PG
Learning Resource Type Article
Journal Indian J Phys
Volume Number 83
Issue Number 6
Page Count 5
Starting Page 857
Ending Page 861