New chemical Fricke gel radiation dosimeter

L. Pirani; L. De Oliveira; P. Petchevist; M. Moreira; D. Ila; A. De Almeida

doi:10.1007/s10967-009-0508-6

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 280: Issue 2

New chemical Fricke gel radiation dosimeter

Authors:

L. Pirani

L. Pirani Universidade de São Paulo Departamento de Física e Matemática da FFCLRP São Paulo, SP Brazil

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L. De Oliveira

L. De Oliveira Universidade de São Paulo Departamento de Física e Matemática da FFCLRP São Paulo, SP Brazil

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P. Petchevist

P. Petchevist Universidade de São Paulo Departamento de Física e Matemática da FFCLRP São Paulo, SP Brazil

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M. Moreira

M. Moreira

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D. Ila

D. Ila Alabama A&M University Normal Alabama USA

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A. De Almeida

A. De Almeida

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Pages:: 259–264

Online Publication Date:: 01 May 2009

Publication Date:: 01 May 2009

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-009-0508-6

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Abstract

Dosimetric gel is used in several measurements due to its linearity, low cost, and possibility for 3D measurements. This work brings a new possibility to apply the Fricke Xylenol Gel recipe in the diagnostic measurements region. The Fricke Xilenol Gel (FXG) dosimeter is associated with the Fe(II) to Fe(III) oxidation, when irradiated, being the final ion concentration proportional to the absorbed dose. To achieve the scope, the former dosimeter was modified through the benzoic acid addition in the original recipe forming a new dosimeter, the Benzoic Xylenol Gel (BFXG). The results obtained with this new dosimeter demonstrated a higher sensibility for low absorbed dose values, bringing down the absorbed dose inferior limit from 0.1 to 0.006 Gy, that is more adequate for radiodiagnostic absorbed dose measurements. This result shows the possibly of BFXG dosimeter to be used for measurements in the radiodiagnostic region, as for tomography and mammography techniques.

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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)