TY - JOUR
T1 - Thorium-229 quantified in historical thorium-228 sources
AU - Boden, Sven
AU - Vints, Koen
AU - Cagno, Simone
AU - Maertens, Dominic
AU - Van Hecke, Karen
AU - Cardinaels, Thomas
N1 - Score=10
PY - 2017/2/1
Y1 - 2017/2/1
N2 - 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 233U, 229Th can also be produced by neutron irradiation of 226Ra. At
SCK•CEN, capsules containing mainly 228Th (by-product of 226Ra irradiation) were characterized to quantify the present amounts of 229Th, 228Th, 227Ac, 226Ra with high resolution gamma spectroscopy, after a decay period of
40 years in which 228Th has decayed. High purity 229Th was quantified, and after recovery using radiochemical separation processes, it can be used to support ongoing research.
AB - 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 233U, 229Th can also be produced by neutron irradiation of 226Ra. At
SCK•CEN, capsules containing mainly 228Th (by-product of 226Ra irradiation) were characterized to quantify the present amounts of 229Th, 228Th, 227Ac, 226Ra with high resolution gamma spectroscopy, after a decay period of
40 years in which 228Th has decayed. High purity 229Th was quantified, and after recovery using radiochemical separation processes, it can be used to support ongoing research.
KW - 229Th
KW - 228Th
KW - 227Ac
KW - 226Ra
KW - 225Ac
KW - 213Bi
KW - in-situ gamma-ray spectrometry
KW - Nuclear clock
KW - targeted alpha therapy
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/21034682
U2 - 10.1016/j.apradiso.2016.11.012
DO - 10.1016/j.apradiso.2016.11.012
M3 - Article
SN - 0969-8043
VL - 120
SP - 40
EP - 44
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
ER -