Effects of humidity and light on dosimetric properties of clear polymethylmethacrylate

H. Khan; G. Ahmad; A. Sattar

doi:10.1007/bf02164581

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 135: Issue 4

Effects of humidity and light on dosimetric properties of clear polymethylmethacrylate

Authors:

H. Khan

H. Khan University of Peshawar National Centre of Excellence in Physical Chemistry Pakistan

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G. Ahmad

G. Ahmad University of Peshawar National Centre of Excellence in Physical Chemistry Pakistan

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A. Sattar

A. Sattar University of Peshawar National Centre of Excellence in Physical Chemistry Pakistan

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Pages:: 237–246

Online Publication Date:: 27 Sep 2005

Publication Date:: 17 Mar 1989

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02164581

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Abstract

Effects of humidity and light conditions /fluoroscent light, sunlight and diffuse sunlight/ on the response of 2 mm thick clear polymethylmethacrylate /PMMA/ dosimeter during irradiation and during postirradiation storage were determined spectrophotometrically at 305 and 314 nm. The results showed that irradiation of dosimeters at 12–97% relative humidity did not result in any change in the response upto 2 weeks of post-irradiation storage. However, there is some decrease in the response at higher humidities />76%/ for longer storage time. Post-irradiation storage and dosimeters at constant relative humidity conditions between 35 and 97% had no effect on the response up-to 3 weeks. Post-irradiation storage at lower relative humidity /12%/ showed some decrease in the response for longer periods. The response of dosimeter is not very sensitive to short time exposure to diffuse sunlight and fluorescent light. However, a significant increase in the optical density was observed during exposure of dosimeters to direct sunlight.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)