The field of beta delayed neutron emission has been of interest since the discovery of nuclear fission. However, the status of compilation of available data is not satisfactory. Applying state-of-the-art experimental techniques, new measurements of beta delayed neutrons have been undertaken at various different laboratories such as GSI (Germany), Triumf (Canada), Riken (Japan) and ORNL (USA). It has been indicated that the IAEA should take a role at the centre of these activities and coordinate the efforts by evaluating, compiling and, eventually, disseminating the results in form of a Reference Database for Beta-delayed Neutron Emission Evaluation. Therefore this CRP is proposed.
Compile the existing Beta-delayed neutron data, in particular half-lives, neutron emission probabilities and neutron spectra for individual precursors
CRP Publications
Type
International Review Journal
Year
2016
Description
Relative abundances of delayed neutrons and half-lives of their precursors in the interaction of 238U with relativistic protons, by A.S. Egorov, V.M. Piksaikin, et al.
Country/Organization
Progress in Nuclear Energy
Type
International Peer-reviewed journal (ELSEVIER)
Year
2016
Publication URL
http://www.sciencedirect.com/science/article/pii/S0168900215013169
Description
Characterization of a neutron-beta counting system with beta-delayed neutron emitters, by J. Agramunt, J.L. Tain, JM.B. Gomez-Hornillos, et al.
Country/Organization
Nuclear Instruments and Methods A
Type
International Peer-reviewed web publication
Year
2016
Description
Delayed neutron emission near the shell-closures, by I.N. Borzov
Country/Organization
European Physical Journal Web of Conferences
Type
Proc. of the 24th Russian Particle Accelerator Conference, RuPAC 2014
Year
2014
Description
Experimental study of the time dependence of the activity of delayed neutrons in the fission of 235U by neutrons from the reaction 7LI(p, n) on the electrostatic accelerator EG-1, by K. Mitrofanov, V. Piksaikin, et al.
Country/Organization
Russian Federation
Type
International Peer-reviewed journal
Year
2016
Publication URL
https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.117.012501
Description
First measurement of several beta-delayed neutron emitting isotopes beyond N=126, R. Caballero-Foch, A.Algora,…,I.N. Borzov,…,I. Dillmann, …, T. Marketin,…,J.L. Tain, et al
Country/Organization
Physical Review Letters (APS)
Type
INDC(NDS)
Year
2015
Publication URL
http://www-nds.iaea.org/publications/indc/indc-nds-0689.pdf
Description
High Resolution Measurements of Aggregate Delayed Neutron Spectra in Different Time Intervals from Thermal Neutron Induced Fission of 235U, by V. Piksaikin et al.
Country/Organization
IAEA
Type
Conference Proceedings (XXII-th International Seminar on Interaction of Neutrons with Nuclei, Dubna, Russia, 24-28 May, 2014)
Year
2014
Description
The total number of delayed neutrons and average half-life of their precursors in the neutron induced fission of 235U, 238U, 239Pu (Summation method), by K. Mitrofanov, V. Piksaikin, et al.
Country/Organization
Russian Federation
Type
International Peer-reviewed journal
Year
2016
Publication URL
http://journals.aps.org/prc/pdf/10.1103/PhysRevC.93.025805
Description
Large-scale evaluation of ?-decay rates of r-process nuclei with the inclusion of first-forbidden transitions, by T. Marketin et al (including Supplement with tables)
Country/Organization
Physical Review C (American Physical Society)
Type
International Peer-reviewed journal
Year
2014
Publication URL
http://www.sciencedirect.com/science/article/pii/S0090375214004608
Description
First Compilation and Evaluation of Beta-Delayed Neutron Emission Probabilities and Associated Half-Lives for A = 72 Nuclei, by M. Birch, B. Singh, D. Abriola et al
Country/Organization
Nuclear Data Sheets (ELSEVIER)
Type
INDC(NDS)
Year
2014
Publication URL
http://www-nds.iaea.org/publications/indc/indc-nds-0646.pdf
Description
The absolute total delayed neutron yields, rel. abundances and half-lives of delayed neutron groups in 6- and 8-group model from neutron-induced fission of 232Th, 233U, 236U, 239Pu and 241Am in the energy range from 0.35 MeV to 5 MeV, by V. Piksaikin et al.
Country/Organization
IAEA
