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1492

Dosimeter Film Based on Ethyl Violet-Bromophenol Blue Dyed Poly (vinyl alcohol)

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Last updated: 01 Jan 2025

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Abstract

 DYED POLY(VINYL ALCOHOL) (PVA) films, prepared by a simple technique of casting aqueous solutions of PVA containing a mixture of ethyl violet and bromophenol blue (EV-BPB) on a horizontal glass plate, are useful as routine high-dose dosimeter in the 1-30 kGy range. The colour of films changes from violet to yellow when exposed to gamma radiation. The response of this dosimeter depends up on the concentration of chloral hydrate (CH) in the polymer material. The radiation chemical yield (G-value) of PVA dyed film was calculated and found to increase by increasing concentration of chloral hydrate. Post-irradiation storage on the response of the films are discussed. The overall combined uncertainty (at 2σ) associated with measurement of response (ΔA mm -1) at 600 nm for dose range 1-15 kGy is 5.6 %.

DOI

10.21608/ejrsa.2012.1492

Keywords

Ethyl-violet and bromo-phenol blue, Poly(vinyl alcohol, Gamma ray dosimeter

Volume

25

Article Issue

1

Related Issue

319

Issue Date

2012-12-01

Receive Date

2014-06-10

Publish Date

2012-12-31

Page Start

103

Page End

113

Print ISSN

1110-0303

Online ISSN

2314-8527

Article File

EJRSA_Volume 25_Issue 1_Pages 103-113.pdf

PDF . 516.7kB

Link

https://ejrsa.journals.ekb.eg/article_1492.html

Detail API

https://ejrsa.journals.ekb.eg/service?article_code=1492

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9

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Original Article

Type Code

136

Publication Type

Journal

Publication Title

Egyptian Journal of Radiation Sciences and Applications

Publication Link

https://ejrsa.journals.ekb.eg/

MainTitle

Dosimeter Film Based on Ethyl Violet-Bromophenol Blue Dyed Poly (vinyl alcohol)

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Type

Article

Created At

22 Jan 2023