The dose rate effect and the homogeneity of radio-oxidation of plastics

The homogeneity of the radio-oxidation of plastics in different depths from the surface has been determined by measuring the thermo-oxidative stability (oxidative induction time – OIT) of irradiated samples. Two materials have been studied: a fire retarding EPR/EVA cable sheathing compound with the...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2001-12, Vol.185 (1), p.355-359
Main Authors: Placek, V, Bartonicek, B
Format: Article
Language:English
Subjects:
Differential scanning calorimetry
Dose rate
Polymer
Radio-oxidation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The homogeneity of the radio-oxidation of plastics in different depths from the surface has been determined by measuring the thermo-oxidative stability (oxidative induction time – OIT) of irradiated samples. Two materials have been studied: a fire retarding EPR/EVA cable sheathing compound with the thickness of 4.4 mm and a high-density polyethylene (HDPE) (20 mm thick) which was studied for potential use as a material for radioactive waste disposal containers. Both materials have been irradiated using 60Co gamma-ray source at different dose rates in the interval from 8.5 to 8550 Gy/h. Irradiated samples have been cut into very thin slices and the thermo-oxidative stability (OIT) has been measured using differential scanning calorimeter. In this way the dependence of OIT values on the distance from the surface has been obtained for both samples and at applied dose rates.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(01)00943-0