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High-dose Film Dosimeter Based on a Mixture of BG and BPB Dyed Poly(vinyl butyral)

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Last updated: 01 Jan 2025

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Abstract

 DYED poly(vinyl butyral) (PVB) film, prepared by a simple technique of casting aqueous solutions of PVB containing a mixture of brilliant green (BG), bromo phenol blue (BPB) and chloral hydrate (CCl3CH(OH)2, on a horizontal glass plate are useful as routine high-dose dosimeters. This flexible plastic film changes its colour from green to pale yellow to colourless on exposure to γ-rays photons due to the consequent lowering of pH caused by HCl generated from the radiolysis of chloral hydrate. The useful dose rang extends up to 60 kGy. Effect of different chloral hydrate concentrations on response of the film was investigated. Although the film gives excellent stability before and after irradiation when stored in the dark at room temperature beside excellent stability up to 80% relative humidity (RH). The overall combined uncertainty (at 2σ) associated with measurement of response (ΔA.mm-1) at 634 nm for dose range 1-60 kGy is 5.63%.

DOI

10.21608/ejrsa.2011.1461

Keywords

Brilliant green-Bromo phenol blue), Poly(vinyl butyral), γ-rays dosimeter

Volume

24

Article Issue

1

Related Issue

316

Issue Date

2011-06-01

Receive Date

2011-08-21

Publish Date

2011-06-30

Page Start

143

Page End

152

Print ISSN

1110-0303

Online ISSN

2314-8527

Article File

EJRSA_Volume 24_Issue 1_Pages 143-152.pdf

PDF . 558.3kB

Link

https://ejrsa.journals.ekb.eg/article_1461.html

Detail API

https://ejrsa.journals.ekb.eg/service?article_code=1461

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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

High-dose Film Dosimeter Based on a Mixture of BG and BPB Dyed Poly(vinyl butyral)

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Article

Created At

22 Jan 2023