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- Title
The production of Ar-37 using a thermal neutron reactor flux.
- Authors
Kelly, D. G.; Arnaud, Q.; Brossard, A. E.; Corcoran, E. C.; Durnford, D.; Gerbier, G.; Faurschou, A.; McDonald, J. M.; Mumby, T.; Samuleev, P.
- Abstract
Ar-37 has been prepared from micron- and nano- diameter CaO by irradiation in the predominantly thermal flux of a SLOWPOKE-2 reactor. A polyether ether ketone irradiation vial facilitates irradiation in vacuo to yield radio-argon as the sole gaseous product. Gamma-emitting Ar-41(T1/2 = 110 min) is used to infer Ar-37 activity, although 40Ar(n, γ)41Ar also occurs as a result of air entrapped within the CaO matrix. Less air is present in the nano-CaO matrix and more radio-argon is liberated to the gas phase. Using nano-CaO, 96 ± 10% of predicted Ar-41 is observed following Ar-41 diffusion to an un-irradiated container.
- Subjects
ISOTOPES; THERMAL neutrons; NUCLEAR activation analysis; ARGON; NANOPARTICLES
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 318, Issue 1, p279
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-018-6130-8