Applications of the total absorption technique to improve reactor decay heat calculations: study of the beta decay of 102,104,105Tc

A. Algora, D. Jordan, J. L. Taín, B. Rubio, J. Agramunt, A. B. Perez-Cerdan, F. Molina, L. Caballero, E. Nácher, A. Krasznahorkay, M. Hunyadi, J. Gulyás, A. Vitéz, M. Csatlós, L. Csige, J. Äystö, H. Penttilä, I. D. Moore, T. Eronen, A. JokinenA. Nieminen, J. Hakala, P. Karvonen, A. Kankainen, A. Saastamoinen, J. Rissanen, T. Kessler, C. Weber, J. Ronkainen, S. Rahaman, V. Elomaa, U. Hager, S. Rinta-Antila, T. Sonoda, K. Burkard, W. Hüller, L. Batist, W. Gelletly, T. Yoshida, A. L. Nichols, A. Sonzogni, K. Peräjärvi

Research output: Conference contribution

2 Citations (Scopus)

Abstract

The decay heat of the fission products plays an important role in predicting the heat-up of nuclear fuel after reactor shutdown. This form of energy release is calculated as the sum of the energy-weighted activities of all fission products P(t) = Σ.EiλiN i(t), where Ei; is the decay energy of nuclide i (gamma and beta component), λ,- is the decay constant of nuclide i and N i(t) is the number of nuclide i at cooling time t. Even though the reproduction of the measured decay heat has improved in recent years, there is still a long standing discrepancy at t - 1000s cooling time for some fuels. A possible explanation for this disagreement can been found in the work of Yoshida et al. [1], who demonstrated that an incomplete knowledge of the β-decay of some Tc isotopes could be the source of the systematic discrepancy. Motivated by [1], we have recently measured the β -decay process of some Tc isotopes using a total absorption spectrometer at the IGISOL facility in Jyväskylä. The results of the measurements are discussed, along with their impact on summation calculations.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages207-214
Number of pages8
Volume1090
DOIs
Publication statusPublished - 2009
Event13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics - Cologne, Germany
Duration: aug. 25 2009aug. 29 2009

Other

Other13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics
CountryGermany
CityCologne
Period8/25/098/29/09

Fingerprint

reactors
heat
decay
nuclides
fission products
isotopes
cooling
shutdowns
nuclear fuels
energy
spectrometers

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Algora, A., Jordan, D., Taín, J. L., Rubio, B., Agramunt, J., Perez-Cerdan, A. B., ... Peräjärvi, K. (2009). Applications of the total absorption technique to improve reactor decay heat calculations: study of the beta decay of 102,104,105Tc. In AIP Conference Proceedings (Vol. 1090, pp. 207-214) https://doi.org/10.1063/1.3087014

Applications of the total absorption technique to improve reactor decay heat calculations : study of the beta decay of 102,104,105Tc. / Algora, A.; Jordan, D.; Taín, J. L.; Rubio, B.; Agramunt, J.; Perez-Cerdan, A. B.; Molina, F.; Caballero, L.; Nácher, E.; Krasznahorkay, A.; Hunyadi, M.; Gulyás, J.; Vitéz, A.; Csatlós, M.; Csige, L.; Äystö, J.; Penttilä, H.; Moore, I. D.; Eronen, T.; Jokinen, A.; Nieminen, A.; Hakala, J.; Karvonen, P.; Kankainen, A.; Saastamoinen, A.; Rissanen, J.; Kessler, T.; Weber, C.; Ronkainen, J.; Rahaman, S.; Elomaa, V.; Hager, U.; Rinta-Antila, S.; Sonoda, T.; Burkard, K.; Hüller, W.; Batist, L.; Gelletly, W.; Yoshida, T.; Nichols, A. L.; Sonzogni, A.; Peräjärvi, K.

AIP Conference Proceedings. Vol. 1090 2009. p. 207-214.

Research output: Conference contribution

Algora, A, Jordan, D, Taín, JL, Rubio, B, Agramunt, J, Perez-Cerdan, AB, Molina, F, Caballero, L, Nácher, E, Krasznahorkay, A, Hunyadi, M, Gulyás, J, Vitéz, A, Csatlós, M, Csige, L, Äystö, J, Penttilä, H, Moore, ID, Eronen, T, Jokinen, A, Nieminen, A, Hakala, J, Karvonen, P, Kankainen, A, Saastamoinen, A, Rissanen, J, Kessler, T, Weber, C, Ronkainen, J, Rahaman, S, Elomaa, V, Hager, U, Rinta-Antila, S, Sonoda, T, Burkard, K, Hüller, W, Batist, L, Gelletly, W, Yoshida, T, Nichols, AL, Sonzogni, A & Peräjärvi, K 2009, Applications of the total absorption technique to improve reactor decay heat calculations: study of the beta decay of 102,104,105Tc. in AIP Conference Proceedings. vol. 1090, pp. 207-214, 13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, Cologne, Germany, 8/25/09. https://doi.org/10.1063/1.3087014
Algora A, Jordan D, Taín JL, Rubio B, Agramunt J, Perez-Cerdan AB et al. Applications of the total absorption technique to improve reactor decay heat calculations: study of the beta decay of 102,104,105Tc. In AIP Conference Proceedings. Vol. 1090. 2009. p. 207-214 https://doi.org/10.1063/1.3087014
Algora, A. ; Jordan, D. ; Taín, J. L. ; Rubio, B. ; Agramunt, J. ; Perez-Cerdan, A. B. ; Molina, F. ; Caballero, L. ; Nácher, E. ; Krasznahorkay, A. ; Hunyadi, M. ; Gulyás, J. ; Vitéz, A. ; Csatlós, M. ; Csige, L. ; Äystö, J. ; Penttilä, H. ; Moore, I. D. ; Eronen, T. ; Jokinen, A. ; Nieminen, A. ; Hakala, J. ; Karvonen, P. ; Kankainen, A. ; Saastamoinen, A. ; Rissanen, J. ; Kessler, T. ; Weber, C. ; Ronkainen, J. ; Rahaman, S. ; Elomaa, V. ; Hager, U. ; Rinta-Antila, S. ; Sonoda, T. ; Burkard, K. ; Hüller, W. ; Batist, L. ; Gelletly, W. ; Yoshida, T. ; Nichols, A. L. ; Sonzogni, A. ; Peräjärvi, K. / Applications of the total absorption technique to improve reactor decay heat calculations : study of the beta decay of 102,104,105Tc. AIP Conference Proceedings. Vol. 1090 2009. pp. 207-214
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abstract = "The decay heat of the fission products plays an important role in predicting the heat-up of nuclear fuel after reactor shutdown. This form of energy release is calculated as the sum of the energy-weighted activities of all fission products P(t) = Σ.EiλiN i(t), where Ei; is the decay energy of nuclide i (gamma and beta component), λ,- is the decay constant of nuclide i and N i(t) is the number of nuclide i at cooling time t. Even though the reproduction of the measured decay heat has improved in recent years, there is still a long standing discrepancy at t - 1000s cooling time for some fuels. A possible explanation for this disagreement can been found in the work of Yoshida et al. [1], who demonstrated that an incomplete knowledge of the β-decay of some Tc isotopes could be the source of the systematic discrepancy. Motivated by [1], we have recently measured the β -decay process of some Tc isotopes using a total absorption spectrometer at the IGISOL facility in Jyv{\"a}skyl{\"a}. The results of the measurements are discussed, along with their impact on summation calculations.",
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AU - Algora, A.

AU - Jordan, D.

AU - Taín, J. L.

AU - Rubio, B.

AU - Agramunt, J.

AU - Perez-Cerdan, A. B.

AU - Molina, F.

AU - Caballero, L.

AU - Nácher, E.

AU - Krasznahorkay, A.

AU - Hunyadi, M.

AU - Gulyás, J.

AU - Vitéz, A.

AU - Csatlós, M.

AU - Csige, L.

AU - Äystö, J.

AU - Penttilä, H.

AU - Moore, I. D.

AU - Eronen, T.

AU - Jokinen, A.

AU - Nieminen, A.

AU - Hakala, J.

AU - Karvonen, P.

AU - Kankainen, A.

AU - Saastamoinen, A.

AU - Rissanen, J.

AU - Kessler, T.

AU - Weber, C.

AU - Ronkainen, J.

AU - Rahaman, S.

AU - Elomaa, V.

AU - Hager, U.

AU - Rinta-Antila, S.

AU - Sonoda, T.

AU - Burkard, K.

AU - Hüller, W.

AU - Batist, L.

AU - Gelletly, W.

AU - Yoshida, T.

AU - Nichols, A. L.

AU - Sonzogni, A.

AU - Peräjärvi, K.

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AB - The decay heat of the fission products plays an important role in predicting the heat-up of nuclear fuel after reactor shutdown. This form of energy release is calculated as the sum of the energy-weighted activities of all fission products P(t) = Σ.EiλiN i(t), where Ei; is the decay energy of nuclide i (gamma and beta component), λ,- is the decay constant of nuclide i and N i(t) is the number of nuclide i at cooling time t. Even though the reproduction of the measured decay heat has improved in recent years, there is still a long standing discrepancy at t - 1000s cooling time for some fuels. A possible explanation for this disagreement can been found in the work of Yoshida et al. [1], who demonstrated that an incomplete knowledge of the β-decay of some Tc isotopes could be the source of the systematic discrepancy. Motivated by [1], we have recently measured the β -decay process of some Tc isotopes using a total absorption spectrometer at the IGISOL facility in Jyväskylä. The results of the measurements are discussed, along with their impact on summation calculations.

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