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Neutron capture cross section measurements of 241Am at the n_TOF facility

Authors :
Oprea A.
Gunsing F.
Schillebeeckx P.
Aberle O.
Bacak M.
Berthoumieux E.
Cano-Ott D
Diakaki M.
Dupont E.
Geslot B.
Glodariu T.
Heyse J.
Mendoza E.
Negret A.
Alcayne V.
Amaducci S.
Andrzejewski J.
Audouin L.
Bécares V.
Babiano-Suarez V
Barbagallo M.
Becčvář F.
Bellia G.
Billowes J.
Bosnar D.
Brown A.
Busso M.
Caamaño M.
Caballero-Ontanaya L
Calviño F.
Calviani M.
Casanovas A.
Cerutti F.
Chen Y. H.
Chiaveri E.
Colonna N.
Cortés G.
Cortés-Giraldo M. A.
Cosentino L.
Cristallo S.
Damone L. A.
Dietz M.
Domingo-Pardo C
Dressler R.
Durán I.
Eleme Z.
Femández-Domínguez B.
Ferrari A.
Finocchiaro P.
Furman V.
Göbel K.
Garg R.
Gawlik A.
Gilardoni S.
Goncalves I. F.
González-Romero E.
Guerrero C.
Harada H.
Heinitz S.
Jenkins D. G.
Jericha E.
Käppeler F.
Kadi Y.
Kimura A.
Kivel N.
Kokkoris M.
Kopatch Y.
Krtička M.
Kurtulgil D.
Ladarescu I.
Lederer-Woods C
Lerendegui-Marco J
Meo S. Lo
Lonsdale S. J.
Macina D.
Manna A.
Martínez T.
Masi A.
Massimi C.
Mastinu P.
Mastromarco M.
Matteucci F.
Maugeri E. A.
Mazzone A.
Mengoni A.
Michalopoulou V.
Milazzo P. M.
Mingrone F.
Musumarra A.
Nolte R.
Ogállar F.
Patronis N.
Pavlik A.
Perkowski J.
Persanti L.
Porras I.
Praena J.
Quesada J. M.
Radeck D.
Ramos-Doval D
Reifarth R.
Rochman D.
Rubbia C.
Sabaté-Gilarte M.
Saxena A.
Schumann D.
Smith A. G.
Sosnin N. V.
Stamatopoulos A.
Tagliente G.
Tain J. L.
Talip T.
Tarifeño-Saldivia A.
Tassan-Got L
Torres-Sánchez P.
Tsinganis A.
Ulrich J.
Urlass S.
Valenta S.
Vannini G.
Variale V.
Vaz P.
Ventura A.
Vlachoudis V.
Vlastou R.
Wallner A.
Woods P. J.
Wright T.
Žugec P.
Source :
EPJ Web of Conferences, Vol 239, p 01009 (2020)
Publication Year :
2020
Publisher :
EDP Sciences, 2020.

Abstract

Neutron capture on 241Am plays an important role in the nuclear energy production and also provides valuable information for the improvement of nuclear models and the statistical interpretation of the nuclear properties. A new experiment to measure the 241Am(n, γ) cross section in the thermal region and the first few resonances below 10 eV has been carried out at EAR2 of the n_TOF facility at CERN. Three neutron-insensitive C6D6 detectors have been used to measure the neutron-capture gamma cascade as a function of the neutron time of flight, and then deduce the neutron capture yield. Preliminary results will be presented and compared with previously obtained results at the same facility in EAR1. In EAR1 the gamma-ray background at thermal energies was about 90% of the signal while in EAR2 is up to a 25 factor much more favorable signal to noise ratio. We also extended the low energy limit down to subthermal energies. This measurement will allow a comparison with neutron capture measurements conducted at reactors and using a different experimental technique.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
239
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.06881229c9c54dcea3c0f6bb70641841
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/202023901009