TY - JOUR
T1 - EPMA-based mass balance method for quantitative fission product distribution comparison between TRISO particles
AU - Wright, Karen E.
AU - Stempien, John D.
AU - van Rooyen, Isabella J.
N1 - Funding Information:
We thank the National Scientific Users Facility (NSUF) for partial financial support. This work was sponsored by the U.S. Department of Energy, Office of Nuclear Energy, under U.S. Department of Energy Idaho Operations Office Contract DE-AC07-05ID14517. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.
Funding Information:
We thank the National Scientific Users Facility (NSUF) for partial financial support. This work was sponsored by the U.S. Department of Energy, Office of Nuclear Energy, under U.S. Department of Energy Idaho Operations Office Contract DE-AC07-05ID14517. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to The Materials Research Society.
PY - 2022/2/3
Y1 - 2022/2/3
N2 - Two irradiated AGR-2 TRISO particles were chosen to demonstrate a recently developed mass balance technique in which EPMA-generated concentration data were used to determine fission product mass on a layer-by-layer basis in TRISO particles. EPMA-calculated fission product masses for most fission products in the two particles were within ± 20% of their ORIGEN-modelled masses. Results show that Sr, Ba, and Eu accumulate preferentially in the carbon-rich kernel periphery on the particles’ side that lacks a gap between the buffer and IPyC. In addition, the more mobile elements—Cs, Sr, Pd, and Ag, accumulate in greater quantity in the outer layers of particle AGR2-223-RS34 compared to particle AGR2-223-RS06, which has relatively more of those elements’ mass located in the kernel and kernel periphery, suggesting enhanced fission product transport in particle AGR2-223-RS34. This model can be used better understand and test fission product transport in TRISO particles. Graphical abstract: [Figure not available: see fulltext.].
AB - Two irradiated AGR-2 TRISO particles were chosen to demonstrate a recently developed mass balance technique in which EPMA-generated concentration data were used to determine fission product mass on a layer-by-layer basis in TRISO particles. EPMA-calculated fission product masses for most fission products in the two particles were within ± 20% of their ORIGEN-modelled masses. Results show that Sr, Ba, and Eu accumulate preferentially in the carbon-rich kernel periphery on the particles’ side that lacks a gap between the buffer and IPyC. In addition, the more mobile elements—Cs, Sr, Pd, and Ag, accumulate in greater quantity in the outer layers of particle AGR2-223-RS34 compared to particle AGR2-223-RS06, which has relatively more of those elements’ mass located in the kernel and kernel periphery, suggesting enhanced fission product transport in particle AGR2-223-RS34. This model can be used better understand and test fission product transport in TRISO particles. Graphical abstract: [Figure not available: see fulltext.].
UR - https://www.scopus.com/pages/publications/85124163217
UR - https://www.mendeley.com/catalogue/e7f82a11-0580-3ce6-bf0e-8d7545abb939/
U2 - 10.1557/s43580-021-00166-2
DO - 10.1557/s43580-021-00166-2
M3 - Article
AN - SCOPUS:85124163217
SN - 2059-8521
VL - 6
SP - 1020
EP - 1025
JO - MRS Advances
JF - MRS Advances
IS - 47-48
ER -