F. Abdelrehim et al., THE USE OF ELECTRON-SPIN-RESONANCE SPECTROSCOPY FOR THE DETECTION OF IRRADIATED MACKEREL, Applied radiation and isotopes, 48(2), 1997, pp. 241-245
Citations number
23
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging","Chemistry Inorganic & Nuclear
Free radicals produced in Spanish mackerel fish bone by Co-60 gamma-ra
ys were measured using electron spin resonance spectroscopy. The ESR s
pectra of the irradiated fish were found to have an asymmetric absorpt
ion characterized by a major resonance at g(1) = 2.0020 and a minor re
sonance at g(2) = 1.9980. The intensity of the radiation-induced ESR s
ignal was found to increase with the absorbed dose. The results obtain
ed after irradiation in the dose range 0.5-5.7 kGy gave a nonlinear re
lationship between the radiation dose and ESR signal height. The radia
tion-induced ESR signal of Spanish mackerel decayed most significantly
in the first 15 days after irradiation, but could still be detected e
ven after 60 days. Copyright (C) 1997 Elsevier Science Ltd