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Capture and Sequestration of Radioactive Iodine

Published online by Cambridge University Press:  01 February 2011

Brian Westphal ,
Daniel G. Cummings ,
Jeff J. Giglio ,
Dennis L. Wahlquist ,
Ken J. Bateman ,
William M. McCartin ,
Jang J. Park ,
Jin M. Shin  and
Bruce D. Begg
Brian Westphal
Affiliation:
brian.westphal@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
Daniel G. Cummings
Affiliation:
daniel.cummings@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
Jeff J. Giglio
Affiliation:
jeffrey.giglio@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
Dennis L. Wahlquist
Affiliation:
dennis.wahlquist@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
Ken J. Bateman
Affiliation:
ken.bateman@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
William M. McCartin
Affiliation:
william.mccartin@inl.gov, Idaho National Laboratory, Idaho Falls, Idaho, United States
Jang J. Park
Affiliation:
jjpark@kaeri.re.kr, Korea Atomic Energy Research Institute, Daejeon, Korea, Republic of
Jin M. Shin
Affiliation:
jmshin@kaeri.re.kr, Korea Atomic Energy Research Institute, Daejeon, Korea, Republic of
Bruce D. Begg
Affiliation:
bruce.begg@anstoinc.com, Australian Nuclear Science and Technology Organization, Idaho Falls, Idaho, United States
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Abstract

Trapping experiments have been performed at the Idaho National Laboratory to assess the performance of AgX sorbent media in capturing volatile iodine during the oxidation of irradiated oxide fuel. The demonstration of iodine release and capture from the used fuel has been accomplished with laboratory-scale equipment in a hot cell environment. Iodine loadings as high as 6 ug/g media have been achieved via chemical adsorption with filter efficiencies in excess of 90%. In addition to iodine, significant quantities of tritium have also been collected on the AgX filter media. Filter media loaded with radioactive iodine has been sequestered in a tin matrix by hot isostatic pressing at 200°C. The placement and encapsulation of the sorbent media was examined by neutron radiography, thus confirming the sequestration of radioactive iodine.

Keywords

hot isostatic pressing (HIP)nuclear materialswaste management
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1265: Symposium AA – Scientific Basis for Nuclear Waste Management XXXIV , 2010 , 1265-AA02-04
Copyright
Copyright © Materials Research Society 2010

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