New accurate measurements of neutron emission probabilities for relevant fission products

Agramunt, J.; Tain, J.L.; Albiol, F.; Algora, A.; Caballero-Folch, R.; Calvino, F.; Cortes, G.; Dillmann, I.; Eronen, Tommi; Garcia, A.R.; Ganioglu, E.; Gelletly, W.; Gorelov, Dmitry; Guadilla, V.; Hakala, Jani; Jokinen, Ari; Kankainen, Anu; Montaner, A.; Marta, M.; Mendoza, E.; Moore, Iain; Nobs, C.; Orrigo, S.; Penttilä, Heikki; Reponen, Mikael; Rinta-Antila, Sami; Riego, A.; Rubio, B.; Saastamoinen, Antti; Salvador-Castineira, P.; Tarifeno-Saldivia, A.; Tolosa, A.; Valencia, E.

doi:10.1051/epjconf/201714601004

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Agramunt, J., Tain, J.L., Albiol, F., Algora, A., Caballero-Folch, R., Calvino, F., Cortes, G., Dillmann, I., Eronen, T., Garcia, A.R., Ganioglu, E., Gelletly, W., Gorelov, D., Guadilla, V., Hakala, J., Jokinen, A., Kankainen, A., Montaner, A., Marta, M., . . . Valencia, E. (2017). New accurate measurements of neutron emission probabilities for relevant fission products. In A. Plompen, F.-J. Hambsch, P. Schillebeeckx, W. Mondelaers, J. Heyse, S. Kopecky, P. Siegler, & S. Oberstedt (Eds.), ND 2016 : International Conference on Nuclear Data for Science and Technology (Article 01004). EDP Sciences. The European Physical Journal Conferences. https://doi.org/10.1051/epjconf/201714601004

Päivämäärä

2017

Oppiaine

Fysiikka Kiihdytinlaboratorio Physics Accelerator Laboratory

Tekijänoikeudet

We have performed new accurate measurements of the beta-delayed neutron emission probability for ten isotopes of the elements Y, Sb, Te and I. These are fission products that either have a significant contribution to the fraction of delayed neutrons in reactors or are relatively close to the path of the astrophysical r process. The measurements were performed with isotopically pure radioactive beams using a constant and high efficiency neutron counter and a low noise beta detector. Preliminary results are presented for six of the isotopes and compared with previous measurements and theoretical calculations.

Julkaisija

EDP Sciences

Emojulkaisun ISBN

978-2-7598-9020-0

Konferenssi

International conference on nuclear data for science and technology

Kuuluu julkaisuun

ND 2016 : International Conference on Nuclear Data for Science and Technology

ISSN Hae Julkaisufoorumista

2101-6275

Asiasanat

astro nuclear physics

DOI

https://doi.org/10.1051/epjconf/201714601004

URI

http://urn.fi/URN:NBN:fi:jyu-201709273850

Julkaisu tutkimustietojärjestelmässä

https://converis.jyu.fi/converis/portal/detail/Publication/27230935

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© The Authors, published by EDP Sciences, 2017. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.

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First determination of β-delayed multiple neutron emission beyond A = 100 through direct neutron measurement : The P2n value of 136Sb

Caballero-Folch, R.; Dillmann, I.; Agramunt, J.; Taín, J. L.; Algora, A.; Äystö, Juha; Calviño, F.; Canete, Laetitia; Cortès, G.; Domingo-Pardo, C.; Eronen, Tommi; Ganioglu, E.; Gelletly, W.; Gorelov, Dmitry; Guadilla, V.; Hakala, Jani; Jokinen, Ari; Kankainen, Anu; Kolhinen, Veli; Koponen, Jukka; Marta, M.; Mendoza, E.; Montaner-Pizá, A.; Moore, Iain; Nobs, C. R.; Orrigo, S. E. A.; Penttilä, Heikki; Pohjalainen, Ilkka; Reinikainen, Juuso; Riego, A.; Rinta-Antila, Sami; Rubio, B.; Salvador-Castiñeira, P.; Simutkin, Vasily; Tarifeño-Saldivia, A.; Tolosa-Delgado, A.; Voss, Annika (American Physical Society, 2018)

Background: β-delayed multiple neutron emission has been observed for some nuclei with A≤100, being the Rb100 the heaviest β2n emitter measured to date. So far, only 25P2n values have been determined for the ≈300 nuclei ...
Measurements of isomeric yield ratios of fission products from proton-induced fission on natU and 232Th via direct ion counting

Rakopoulos, Vasileios; Lantz, Mattias; Al-Adili, Ali; Gorelov, Dmitry; Jokinen, Ari; Kolhinen, Veli; Mattera, Andrea; Moore, Iain; Penttilä, Heikki; Prokofiev, Alexander V.; Solders, Andreas; Pomp, Stephan (EDP Sciences, 2017)

Independent isomeric yield ratios (IYR) of 81Ge, 96Y, 97Y, 97Nb, 128Sn and 130Sn have been determined in the 25 MeV proton-induced fission of natU and 232Th. The measurements were performed at the Ion Guide Isotope Separator ...
High-accuracy mass spectrometry of fission products with Penning traps

Kankainen, Anu; Äystö, Juha; Jokinen, Ari (Institute of Physics, 2012)

Mass measurements of fission products based on Penning-trap technique are reviewed in this article. More than 300 fission products have been measured with JYFLTRAP, ISOLTRAP, CPT, LEBIT and TITAN Penning traps with a typical ...
Mass measurements of neutron-deficient nuclei and their implications for astrophysics

Kankainen, Anu; Novikov, Yuri; Schatz, H.; Weber, Christine (Springer, 2012)

During the years 2005-2010 the double-Penning-trap mass spectrometer JYFLTRAP has been used to measure the masses of 90 ground and 8 isomeric states of neutron-deficient nuclides with a typical precision of better than ...
The study of neutron-rich nuclei production in the region of the closed shell N=126 in the multi-nucleon transfer reaction 136Xe+208Pb

Novikov, K.; Harca, I.M.; Kozulin, E.M.; Dmitriev, S.; Itkis, J.; Knyazheva, G.; Loktev, T.; Corradi, L.; Valiente-Dobon, J.; Fioretto, E.; Montanari, D.; Stefanini, A.M.; Vardaci, E.; Quero, D.; Montagnoli, G.; Scarlassara, F.; Strano, E.; Pollarolo, G.; Piot, J.; Mijatović, T.; Szilner, S.; Ackermann, D.; Chubarian, G.; Trzaska, Wladyslaw (Institute of Physics Publishing Ltd., 2016)

The unexplored area of heavy neutron rich nuclei is extremely important for nuclear astrophysics investigations and, in particular, for the understanding of the r-process of astrophysical nucleogenesis. For the production ...