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Title: Total absorption spectroscopy study of the β decay of Br 86 and Rb 91

Abstract

The beta decays of Br-86 and Rb-91 have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla and further purified using the JYFLTRAP. Br-86 and Rb-91 are considered to be major contributors to the decay heat in reactors. In addition, Rb-91 was used as a normalization point in direct measurements of mean gamma energies released in the beta decay of fission products by Rudstam et al. assuming that this decaywas well known from high-resolution measurements. Our results show that both decays were suffering from the Pandemonium effect and that the results of Rudstam et al. should be renormalized. The relative impact of the studied decays in the prediction of the decay heat and antineutrino spectrum from reactors has been evaluated.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics; Spanish Ministerio de Economia y Competitividad (MINECO); Engineering and Physical Sciences Research Council (EPSRC); STFC Daresbury Laboratory
OSTI Identifier:
1376708
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 1; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Rice, S., Algora, A., Tain, J. L., Valencia, E., Agramunt, J., Rubio, B., Gelletly, W., Regan, P. H., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Rissanen, J., Eronen, T., Äystö, J., Batist, L., Bowry, M., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Elomaa, V. -V., Estevez, E., Farrelly, G. F., Garcia, A. R., Gomez-Hornillos, B., Gorlychev, V., Hakala, J., Jordan, M. D., Jokinen, A., Kolhinen, V. S., Kondev, F. G., Martínez, T., Mason, P., Mendoza, E., Moore, I., Penttilä, H., Podolyák, Zs., Reponen, M., Sonnenschein, V., Sonzogni, A. A., and Sarriguren, P. Total absorption spectroscopy study of the β decay of Br86 and Rb91. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.96.014320.
Rice, S., Algora, A., Tain, J. L., Valencia, E., Agramunt, J., Rubio, B., Gelletly, W., Regan, P. H., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Rissanen, J., Eronen, T., Äystö, J., Batist, L., Bowry, M., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Elomaa, V. -V., Estevez, E., Farrelly, G. F., Garcia, A. R., Gomez-Hornillos, B., Gorlychev, V., Hakala, J., Jordan, M. D., Jokinen, A., Kolhinen, V. S., Kondev, F. G., Martínez, T., Mason, P., Mendoza, E., Moore, I., Penttilä, H., Podolyák, Zs., Reponen, M., Sonnenschein, V., Sonzogni, A. A., & Sarriguren, P. Total absorption spectroscopy study of the β decay of Br86 and Rb91. United States. doi:10.1103/PhysRevC.96.014320.
Rice, S., Algora, A., Tain, J. L., Valencia, E., Agramunt, J., Rubio, B., Gelletly, W., Regan, P. H., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Rissanen, J., Eronen, T., Äystö, J., Batist, L., Bowry, M., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Elomaa, V. -V., Estevez, E., Farrelly, G. F., Garcia, A. R., Gomez-Hornillos, B., Gorlychev, V., Hakala, J., Jordan, M. D., Jokinen, A., Kolhinen, V. S., Kondev, F. G., Martínez, T., Mason, P., Mendoza, E., Moore, I., Penttilä, H., Podolyák, Zs., Reponen, M., Sonnenschein, V., Sonzogni, A. A., and Sarriguren, P. Sat . "Total absorption spectroscopy study of the β decay of Br86 and Rb91". United States. doi:10.1103/PhysRevC.96.014320.
@article{osti_1376708,
title = {Total absorption spectroscopy study of the β decay of Br86 and Rb91},
author = {Rice, S. and Algora, A. and Tain, J. L. and Valencia, E. and Agramunt, J. and Rubio, B. and Gelletly, W. and Regan, P. H. and Zakari-Issoufou, A. -A. and Fallot, M. and Porta, A. and Rissanen, J. and Eronen, T. and Äystö, J. and Batist, L. and Bowry, M. and Bui, V. M. and Caballero-Folch, R. and Cano-Ott, D. and Elomaa, V. -V. and Estevez, E. and Farrelly, G. F. and Garcia, A. R. and Gomez-Hornillos, B. and Gorlychev, V. and Hakala, J. and Jordan, M. D. and Jokinen, A. and Kolhinen, V. S. and Kondev, F. G. and Martínez, T. and Mason, P. and Mendoza, E. and Moore, I. and Penttilä, H. and Podolyák, Zs. and Reponen, M. and Sonnenschein, V. and Sonzogni, A. A. and Sarriguren, P.},
abstractNote = {The beta decays of Br-86 and Rb-91 have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla and further purified using the JYFLTRAP. Br-86 and Rb-91 are considered to be major contributors to the decay heat in reactors. In addition, Rb-91 was used as a normalization point in direct measurements of mean gamma energies released in the beta decay of fission products by Rudstam et al. assuming that this decaywas well known from high-resolution measurements. Our results show that both decays were suffering from the Pandemonium effect and that the results of Rudstam et al. should be renormalized. The relative impact of the studied decays in the prediction of the decay heat and antineutrino spectrum from reactors has been evaluated.},
doi = {10.1103/PhysRevC.96.014320},
journal = {Physical Review C},
issn = {2469-9985},
number = 1,
volume = 96,
place = {United States},
year = {2017},
month = {7}
}

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