Measurement of fission yields and isomeric yield ratios at IGISOL
Abstract
Data on fission yields and isomeric yield ratios (IYR) are tools to study the fission process, in particular the generation of angular momentum. We use the IGISOL facility with the Penning trap JYFLTRAP in Jyväskylä, Finland, for such measurements on 232Th and natU targets. Previously published fission yield data from IGISOL concern the 232Th(p,f) and 238U(p,f) reactions at 25 and 50 MeV. Recently, a neutron source, using the Be(p,n) reaction, has been developed, installed and tested. We summarize the results for (p,f) focusing on the first measurement of IYR by direct ion counting. We also present first results for IYR and relative yields for Sn and Sb isotopes in the 128-133 mass range from natU(n,f) based on γ-spectrometry. We find a staggering behaviour in the cumulative yields for Sn and a shift in the independent fission yields for Sb as compared to current evaluations. Plans for the future experimental program on fission yields and IYR measurements are discussed.
Main Authors
Format
Conferences
Conference paper
Published
2018
Series
Subjects
Publication in research information system
Publisher
EDP Sciences
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201803191761Use this for linking
Parent publication ISBN
978-2-7598-9031-6
Review status
Peer reviewed
ISSN
2101-6275
DOI
https://doi.org/10.1051/epjconf/201816900017
Conference
Scientific workshop on nuclear fission dynamics and the emission of prompt neutrons and gamma rays
Language
English
Published in
EPJ Web of Conferences
Is part of publication
Scientific Workshop on “Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays“ (Theory-4)
Citation
- Pomp, S., Mattera, A., Rakopoulos, V., Al-Adili, A., Lantz, M., Solders, A., Jansson, K., Prokofiev, A., Eronen, T., Gorelov, D., Jokinen, A., Kankainen, A., Moore, I., Penttilä, H., & Rinta-Antila, S. (2018). Measurement of fission yields and isomeric yield ratios at IGISOL. In F.-J. Hambsch, N. Carjan, & I. Ruskov (Eds.), Scientific Workshop on “Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays“ (Theory-4) (Article 00017). EDP Sciences. EPJ Web of Conferences, 169. https://doi.org/10.1051/epjconf/201816900017
License
Copyright© The Authors, published by EDP Sciences, 2018. This is an open access article distributed under the terms of the Creative Commons License.