HIGH GAMMA-DOSE DOSIMETRY BY POLYCARBONATES

Authors
SHAMSHAD A RASHID M HUSAIN A
Citation
A. Shamshad et al., HIGH GAMMA-DOSE DOSIMETRY BY POLYCARBONATES, Radiation physics and chemistry, 50(3), 1997, pp. 307-311
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
50
Issue
3
Year of publication
1997
Pages
307 - 311
Database
ISI
SICI code
0969-806X(1997)50:3<307:HGDBP>2.0.ZU;2-0
Abstract
Polycarbonate from Bisphenol-A has been studied as a dosimeter to meas ure doses of gamma-rays. Ultraviolet spectral changes of irradiated po lycarbonate in chloroform solution were recorded. The optical density of irradiated polycarbonate changes linearly corresponding to the incr ease in dose up to 1230 kGy. The changes in molecular weight of irradi ated samples were determined by the viscometry method using an Ostwald viscometer and G-breakage values were also estimated. Thermogravimetr ic analysis of unirradiated and irradiated samples showed that there i s no discernible change in thermal stability of polycarbonate up to do ses of 400 kGy as demonstrated by a comparison of percentage weight lo ss of irradiated and control samples. (C) 1997 Elsevier Science Ltd.