New accurate measurements of neutron emission probabilities for relevant fission products
- J. Agramunt
- J.L. Tain
- F. Albiol
- A. Algora
- R. Caballero-Folch
- F. Calviño
- G. Cortes
- I. Dillmann
- T. Eronen
- A.R. Garcia
- E. Ganioglu
- W. Gelletly
- D. Gorelov
- V. Guadilla
- H. Hakala
- A. Jokinen
- A. Kankainen
- A. Montaner
- M. Marta
- E. Mendoza
- I. Moore
- C. Nobs
- S. Orrigo
- H. Penttila
- M. Reponen
- S. Rinta-Antila
- A. Riego
- B. Rubio
- A. Saastamoinen
- P. Salvador-Castiñeira
- A. Tarifeño-Saldivia
- A. Tolosa
- E. Valencia
DOIAbstract
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
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