A. Algora, G. Alcalá, M. Estienne, M. Fallot, L. Giot, V. Guadilla, J. L. Tain, W. Gelletly, A. Porta, L. Le Meur, V. M. Bui, J. A. Briz, A.-A. Zakari-Issoufou
{"title":"Pandemonium free data for the JEFF-project","authors":"A. Algora, G. Alcalá, M. Estienne, M. Fallot, L. Giot, V. Guadilla, J. L. Tain, W. Gelletly, A. Porta, L. Le Meur, V. M. Bui, J. A. Briz, A.-A. Zakari-Issoufou","doi":"10.1140/epja/s10050-026-01931-3","DOIUrl":null,"url":null,"abstract":"<div><p>Reactor decay heat is due to the decay of both fission products and neutron activated fuel and reactor materials. At relatively short cooling times it is dominated by the beta decay of fission products. The calculation of the decay heat contribution of a particular fission product depends on the proper assignment of the probability of population of each excited state in the daughter nucleus following beta decay. These decay probabilities and the energy distribution of the continuous beta spectra determine both the unrecoverable energy taken away by the neutrinos and the distribution of decay heat between gamma rays and beta particles. The latter is important for further radiation transport modeling, for instance to determine the volume over which the heat is deposited. This paper describes recent advances in measurement and modeling of selected fission products and the impact for JEFF evaluations.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"62 8","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-026-01931-3.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal A","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epja/s10050-026-01931-3","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Reactor decay heat is due to the decay of both fission products and neutron activated fuel and reactor materials. At relatively short cooling times it is dominated by the beta decay of fission products. The calculation of the decay heat contribution of a particular fission product depends on the proper assignment of the probability of population of each excited state in the daughter nucleus following beta decay. These decay probabilities and the energy distribution of the continuous beta spectra determine both the unrecoverable energy taken away by the neutrinos and the distribution of decay heat between gamma rays and beta particles. The latter is important for further radiation transport modeling, for instance to determine the volume over which the heat is deposited. This paper describes recent advances in measurement and modeling of selected fission products and the impact for JEFF evaluations.
期刊介绍:
Hadron Physics
Hadron Structure
Hadron Spectroscopy
Hadronic and Electroweak Interactions of Hadrons
Nonperturbative Approaches to QCD
Phenomenological Approaches to Hadron Physics
Nuclear and Quark Matter
Heavy-Ion Collisions
Phase Diagram of the Strong Interaction
Hard Probes
Quark-Gluon Plasma and Hadronic Matter
Relativistic Transport and Hydrodynamics
Compact Stars
Nuclear Physics
Nuclear Structure and Reactions
Few-Body Systems
Radioactive Beams
Electroweak Interactions
Nuclear Astrophysics
Article Categories
Letters (Open Access)
Regular Articles
New Tools and Techniques
Reviews.