A CYANOCOBALAMIN DOSIMETER FOR MONITORING GAMMA-RADIATION DOSES OF 0.1-2 KGY

Authors
MAGED AF HAMZA MSA SAAD EA
Citation
Af. Maged et al., A CYANOCOBALAMIN DOSIMETER FOR MONITORING GAMMA-RADIATION DOSES OF 0.1-2 KGY, Radiation physics and chemistry, 50(2), 1997, pp. 179-181
Citations number
17
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
50
Issue
2
Year of publication
1997
Pages
179 - 181
Database
ISI
SICI code
0969-806X(1997)50:2<179:ACDFMG>2.0.ZU;2-K
Abstract
A simple dosimeter is described for measuring gamma-ray doses useful f or insect sterilization, seed-sprouting inhibition and food shelf-life extensions. The red aqueous solution of cyanocobalamin (B-12) before irradiation, assumes a stable yellow color when irradiated. It shows a linear response of absorbance decrease with the dose over the range o f 0.1-2.0 kGy when the concentration of cyanocobalamin is equal 0.09 m M. The radiation-induced color is analyzed spectrophotometrically at t he maximum absorption band (361 nm). The absorption spectra, dose resp onse and post-irradiation stability of the dosimeter are discussed. (C ) 1997 Elsevier Science Ltd.