225Ac and 223Ra production via 800 MeV proton irradiation of natural thorium targets.

Autor: Weidner JW; Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA. john.weidner@us.army.mil, Mashnik SG, John KD, Ballard B, Birnbaum ER, Bitteker LJ, Couture A, Fassbender ME, Goff GS, Gritzo R, Hemez FM, Runde W, Ullmann JL, Wolfsberg LE, Nortier FM
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2012 Nov; Vol. 70 (11), pp. 2590-5. Date of Electronic Publication: 2012 Jul 10.
DOI: 10.1016/j.apradiso.2012.07.003
Abstrakt: Cross sections for the formation of (225,227)Ac, (223,225)Ra, and (227)Th via the proton bombardment of natural thorium targets were measured at a nominal proton energy of 800 MeV. No earlier experimental cross section data for the production of (223,225)Ra, (227)Ac and (227)Th by this method were found in the literature. A comparison of theoretical predictions with the experimental data shows agreement within a factor of two. Results indicate that accelerator-based production of (225)Ac and (223)Ra is a viable production method.
(Published by Elsevier Ltd.)
Databáze: MEDLINE
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