Thorium-229 quantified in historical Thorium-228 capsules.

Authors :: Boden S
Vints K
Cagno S
Maertens D
Van Hecke K
Cardinaels T
Source :: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2017 Feb; Vol. 120, pp. 40-44. Date of Electronic Publication: 2016 Nov 24.
Publication Year :: 2017
Abstract: Thorium-229 is a valuable, but scarce, radionuclide for nuclear clock applications or targeted alpha therapy. While it is mostly produced by the decay of <superscript>233</superscript> U, <superscript>229</superscript> Th can also be produced by neutron irradiation of <superscript>226</superscript> Ra. At SCK•CEN, capsules containing mainly <superscript>228</superscript> Th (by-product of <superscript>226</superscript> Ra irradiation) were characterized to quantify the present amounts of <superscript>229</superscript> Th, <superscript>228</superscript> Th, <superscript>227</superscript> Ac, <superscript>226</superscript> Ra with high resolution gamma spectroscopy, after a decay period of 40 years in which <superscript>228</superscript> Th has decayed. High purity <superscript>229</superscript> Th was quantified, and after recovery using radiochemical separation processes, it can be used to support ongoing research.<br /> (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Language :: English
ISSN :: 1872-9800
Volume :: 120
Database :: MEDLINE
Journal :: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
Publication Type :: Academic Journal
Accession number :: 27907882
Full Text :: https://doi.org/10.1016/j.apradiso.2016.11.012