TY - JOUR
T1 - Potential Burnup Indicator Identification Based on Power History Decomposition
AU - Yin, Shiming
AU - Islam, Tarikul
AU - Mertyurek, Ugur
AU - Procop, Germina
AU - Abdel-Khalik, Hany
N1 - Publisher Copyright:
© 2024 American Nuclear Society. All rights reserved.
PY - 2024
Y1 - 2024
N2 - The burnup prediction capability of commonly measured nuclides is investigated. Accuracy of different burnup indicator groups (categorized based on typical measurement uncertainties) are also estimated. Specifically, category 1 comprises 11 isotopes, including the traditional burnup indicators such as neodymium isotopes. Notably, the typical burnup indicator 137Cs is not included here because a sensitivity study shows that it can be sensitive to a linear ramp rate of power. However, this does not preclude 137Cs from being used as a burnup indicator in practice. The selection of burnup indicators must also consider factors such as measurement cost, uncertainty, and availability; 137Cs, for instance, is easily measured using gamma spectrometry and can be combined with other burnup indicators to infer and calibrate burnup values. Category 2 includes 14 isotopes with higher measurement uncertainty, which should be used in conjunction with other indicator isotopes to provide accurate burnup information. Future work will involve applying these analyses to a real-scale assembly model, using both simulation and experimental data to validate the burnup indicator list, and assessing their performance in burnup inference. The next phase of this study will also focus on predicting the power history of fuel samples. Similar work on void fraction history is also being conducted [7].
AB - The burnup prediction capability of commonly measured nuclides is investigated. Accuracy of different burnup indicator groups (categorized based on typical measurement uncertainties) are also estimated. Specifically, category 1 comprises 11 isotopes, including the traditional burnup indicators such as neodymium isotopes. Notably, the typical burnup indicator 137Cs is not included here because a sensitivity study shows that it can be sensitive to a linear ramp rate of power. However, this does not preclude 137Cs from being used as a burnup indicator in practice. The selection of burnup indicators must also consider factors such as measurement cost, uncertainty, and availability; 137Cs, for instance, is easily measured using gamma spectrometry and can be combined with other burnup indicators to infer and calibrate burnup values. Category 2 includes 14 isotopes with higher measurement uncertainty, which should be used in conjunction with other indicator isotopes to provide accurate burnup information. Future work will involve applying these analyses to a real-scale assembly model, using both simulation and experimental data to validate the burnup indicator list, and assessing their performance in burnup inference. The next phase of this study will also focus on predicting the power history of fuel samples. Similar work on void fraction history is also being conducted [7].
UR - http://www.scopus.com/inward/record.url?scp=85215558192&partnerID=8YFLogxK
U2 - 10.13182/T131-45988
DO - 10.13182/T131-45988
M3 - Conference article
AN - SCOPUS:85215558192
SN - 0003-018X
VL - 131
SP - 276
EP - 279
JO - Transactions of the American Nuclear Society
JF - Transactions of the American Nuclear Society
IS - 1
T2 - 2024 Transactions of the American Nuclear Society on Winter Conference and Expo, ANS 2024
Y2 - 17 November 2024 through 21 November 2024
ER -