Authors: Fatemeh Soltani Ali Bahrami Samani Mahdi Sadeghi Simindokht Shirvani Arani Kamal Yavari
Publish Date: 2014/07/19
Volume: 303, Issue: 1, Pages: 385-391
Abstract
Cerium141 T 1/2 = 325 days β 1 = 5804 keV 30 β 2 = 4350 keV 70 γ = 1454 keV 48 has been introduced as a radionuclide for therapy while can be used in diagnosis as well In this study nuclear model calculation on 141Ce production was investigated via the 140Cedp141Ce 142Ceddn141Ce 141Prnp141Ce and 140Cenγ141Ce nuclear reactions 140Ce was irradiated by thermal neutron at the Tehran Research Reactor according to the 140Cenγ141Ce reaction In addition the obtained activity of the produced 141Ce was compared with the theoretical calculations The results showed that the end of bombardment activities of 141Ce is 63164 MBq theoretically and 61160 MBq experimentally for ceria powder The activities of similar samples of ceria CeO2 powder in two forms of nanoparticles nanoceria and bulk were compared after bombardment by thermal neutrons The results showed that activities of nanoceria were less than the bulk form of ceria
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