The effect of gamma-irradiation on positronium formation in polyethylene
2001 (English)In: Radiation Physics and Chemistry, ISSN 0969-806X, Vol. 60, no 4-5, 541-544 p.Article in journal (Refereed) Published
The effect of gamma -irradiation on positronium (Ps) formation, especially the decrement of Ps formation at room temperature, was studied in linear poly(ethylene). We found that chemical changes, such as oxidation, cross-linking, or radicals created by gamma -irradiation of similar to 50 kGy do not affect Ps formation very much. The decrement of Ps formation was probably caused by a temporary change of physical structure by irradiation that disappears by anneals in the temperature range from room temperature to 120 degreesC, gradually. (C) 2001 Elsevier Science Ltd. All rights reserved.
Place, publisher, year, edition, pages
2001. Vol. 60, no 4-5, 541-544 p.
positronium, poly(ethylene), gamma-irradiation, radicals
IdentifiersURN: urn:nbn:se:liu:diva-49306OAI: oai:DiVA.org:liu-49306DiVA: diva2:270202