EPJ Web of Conferences (Jan 2017)
Time-of-flight and activation experiments on 147Pm and 171Tm for astrophysics
- Guerrero C.,
- Lerendegui-Marco J.,
- Domingo-Pardo C.,
- Casanovas A.,
- Dressler R.,
- Halfon S.,
- Heinitz S.,
- Kivel N.,
- Köster U.,
- Paul M.,
- Quesada-Molina J.M.,
- Schumann D.,
- Tarifeño-Saldivia A.,
- Tessler M.,
- Weissman L.,
- Aberle O.,
- Andrzejewski J.,
- Audouin L.,
- Bacak M.,
- Balibrea J.,
- Barbagallo M.,
- Becvar F.,
- Berthoumieux E.,
- Billowes J.,
- Bosnar D.,
- Brown A.,
- Caamaño M.,
- Calviño F.,
- Calviani M.,
- Cano-Ott D.,
- Cardella R.,
- Cerutti F.,
- Chen Y.H.,
- Chiaveri E.,
- Colonna N.,
- Cortés G.,
- Cortés-Giraldo M.A.,
- Cosentino L.,
- Damone L.A.,
- Diakaki M.,
- Dupont E.,
- Durán I.,
- Fernández-Domínguez B.,
- Ferrari A.,
- Ferreira P.,
- Finocchiaro P.,
- Göbel K.,
- García A.R.,
- Gawlik A.,
- Gilardoni S.,
- Glodariu T.,
- Gonçalves I.F.,
- González E.,
- Griesmayer E.,
- Gunsing F.,
- Harada H.,
- Heyse J.,
- Jenkins D.G.,
- Jericha E.,
- Käppeler F.,
- Kadi Y.,
- Kalamara A.,
- Kavrigin P.,
- Kimura A.,
- Kivel N.,
- Kokkoris M.,
- Krticka M.,
- Kurtulgil D.,
- Leal-Cidoncha E.,
- Lederer C.,
- Leeb H.,
- Meo S. Lo,
- Lonsdale S.J.,
- Macina D.,
- Marganiec J.,
- Martínez T.,
- Masi A.,
- Massimi C.,
- Mastinu P.,
- Mastromarco M.,
- Maugeri E.A.,
- Mazzone A.,
- Mendoza E.,
- Mengoni A.,
- Milazzo P.M.,
- Mingrone F.,
- Musumarra A.,
- Negret A.,
- Nolte R.,
- Oprea A.,
- Patronis N.,
- Pavlik A.,
- Perkowski J.,
- Porras I.,
- Praena J.,
- Radeck D.,
- Rauscher T.,
- Reifarth R.,
- Rout P.C.,
- Rubbia C.,
- Ryan J.A.,
- Sabaté-Gilarte M.,
- Saxena A.,
- Schillebeeckx P.,
- Smith A.G.,
- Sosnin N.V.,
- Stamatopoulos A.,
- Tagliente G.,
- Tain J.L.,
- Tassan-Got L.,
- Tsinganis A.,
- Valenta S.,
- Vannini G.,
- Variale V.,
- Vaz P.,
- Ventura A.,
- Vlachoudis V.,
- Vlastou R.,
- Wallner A.,
- Warren S.,
- Weiss C.,
- Woods P.J.,
- Wright T.,
- Žugec P.,
Affiliations
- Guerrero C.
- Universidad de Sevilla
- Lerendegui-Marco J.
- Universidad de Sevilla
- Domingo-Pardo C.
- Instituto de Fisica Corpuscular IFIC
- Casanovas A.
- Universitat Politecnica de Catalunya UPC
- Dressler R.
- Paul Scherrer Institute PSI
- Halfon S.
- Soreq Nuclear Research Center
- Heinitz S.
- Paul Scherrer Institute PSI
- Kivel N.
- Paul Scherrer Institute PSI
- Köster U.
- Institut Laue-Langevin ILL
- Paul M.
- Hebrew University
- Quesada-Molina J.M.
- Universidad de Sevilla
- Schumann D.
- Paul Scherrer Institute PSI
- Tarifeño-Saldivia A.
- Universitat Politecnica de Catalunya UPC
- Tessler M.
- Hebrew University
- Weissman L.
- Soreq Nuclear Research Center
- Aberle O.
- European Organization for Nuclear Research
- Andrzejewski J.
- University of
- Audouin L.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Bacak M.
- Balibrea J.
- Centro de Investigaciones Energeticas Medioambientales y
- Barbagallo M.
- Istituto Nazionale di Fisica Nucleare
- Becvar F.
- Charles University
- Berthoumieux E.
- CEA Saclay, Irfu
- Billowes J.
- University of
- Bosnar D.
- University of
- Brown A.
- University of
- Caamaño M.
- University of Santiago
- Calviño F.
- Universitat Politecnica de Catalunya UPC
- Calviani M.
- European Organization for Nuclear Research
- Cano-Ott D.
- Centro de Investigaciones Energeticas Medioambientales y
- Cardella R.
- European Organization for Nuclear Research
- Cerutti F.
- European Organization for Nuclear Research
- Chen Y.H.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Chiaveri E.
- University of
- Colonna N.
- Istituto Nazionale di Fisica Nucleare
- Cortés G.
- Universitat Politecnica de Catalunya UPC
- Cortés-Giraldo M.A.
- Universidad de Sevilla
- Cosentino L.
- INFN Laboratori Nazionali del Sud
- Damone L.A.
- Diakaki M.
- CEA Saclay, Irfu
- Dupont E.
- CEA Saclay, Irfu
- Durán I.
- University of Santiago
- Fernández-Domínguez B.
- University of Santiago
- Ferrari A.
- European Organization for Nuclear Research
- Ferreira P.
- Instituto Superior Técnico
- Finocchiaro P.
- INFN Laboratori Nazionali del Sud
- Göbel K.
- Goethe University
- García A.R.
- Centro de Investigaciones Energeticas Medioambientales y
- Gawlik A.
- University of
- Gilardoni S.
- European Organization for Nuclear Research
- Glodariu T.
- Horia Hulubei National Institute of Physics and
- Gonçalves I.F.
- Instituto Superior Técnico
- González E.
- Centro de Investigaciones Energeticas Medioambientales y
- Griesmayer E.
- Technische Universität
- Gunsing F.
- Harada H.
- Japan Atomic Energy Agency (JAEA)
- Heyse J.
- European Commission, Joint Research Centre
- Jenkins D.G.
- University of
- Jericha E.
- Technische Universität
- Käppeler F.
- Karlsruhe Institute of Technology
- Kadi Y.
- European Organization for Nuclear Research
- Kalamara A.
- National Technical University of
- Kavrigin P.
- Technische Universität
- Kimura A.
- Japan Atomic Energy Agency (JAEA)
- Kivel N.
- University of
- Kokkoris M.
- National Technical University of
- Krticka M.
- Charles University
- Kurtulgil D.
- INFN Laboratori Nazionali del Sud
- Leal-Cidoncha E.
- University of Santiago
- Lederer C.
- School of Physics and Astronomy, University of
- Leeb H.
- Technische Universität
- Meo S. Lo
- Lonsdale S.J.
- European Commission, Joint Research Centre
- Macina D.
- European Organization for Nuclear Research
- Marganiec J.
- Martínez T.
- Centro de Investigaciones Energeticas Medioambientales y
- Masi A.
- Universidad de Sevilla
- Massimi C.
- Mastinu P.
- Istituto Nazionale di Fisica Nucleare
- Mastromarco M.
- Hebrew University
- Maugeri E.A.
- Paul Scherrer Institute PSI
- Mazzone A.
- Mendoza E.
- Centro de Investigaciones Energeticas Medioambientales y
- Mengoni A.
- Agenzia nazionale per le nuove tecnologie (ENEA)
- Milazzo P.M.
- Istituto Nazionale di Fisica Nucleare
- Mingrone F.
- European Organization for Nuclear Research
- Musumarra A.
- Negret A.
- Horia Hulubei National Institute of Physics and
- Nolte R.
- Physikalisch-Technische Bundesanstalt (PTB)
- Oprea A.
- Horia Hulubei National Institute of Physics and
- Patronis N.
- University of
- Pavlik A.
- University of Vienna, Faculty of Physics
- Perkowski J.
- Instituto de Fisica Corpuscular IFIC
- Porras I.
- University of
- Praena J.
- University of
- Radeck D.
- Physikalisch-Technische Bundesanstalt (PTB)
- Rauscher T.
- Reifarth R.
- Goethe University
- Rout P.C.
- Bhabha Atomic Research Centre
- Rubbia C.
- European Organization for Nuclear Research
- Ryan J.A.
- University of
- Sabaté-Gilarte M.
- University of
- Saxena A.
- Bhabha Atomic Research Centre
- Schillebeeckx P.
- European Commission, Joint Research Centre
- Smith A.G.
- University of
- Sosnin N.V.
- University of
- Stamatopoulos A.
- National Technical University of
- Tagliente G.
- Istituto Nazionale di Fisica Nucleare
- Tain J.L.
- Instituto de Fisica Corpuscular IFIC
- Tassan-Got L.
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay
- Tsinganis A.
- National Technical University of
- Valenta S.
- Charles University
- Vannini G.
- Variale V.
- Istituto Nazionale di Fisica Nucleare
- Vaz P.
- Instituto Superior Técnico
- Ventura A.
- Istituto Nazionale di Fisica Nucleare
- Vlachoudis V.
- European Organization for Nuclear Research
- Vlastou R.
- National Technical University of
- Wallner A.
- Australian National University
- Warren S.
- University of
- Weiss C.
- European Organization for Nuclear Research
- Woods P.J.
- School of Physics and Astronomy, University of
- Wright T.
- University of
- Žugec P.
- DOI
- https://doi.org/10.1051/epjconf/201714601007
- Journal volume & issue
-
Vol. 146
p. 01007
Abstract
The neutron capture cross section of several key unstable isotopes acting as branching points in the s-process are crucial for stellar nucleosynthesis studies, but they are very challenging to measure due to the difficult production of sufficient sample material, the high activity of the resulting samples, and the actual (n,γ) measurement, for which high neutron fluxes and effective background rejection capabilities are required. As part of a new program to measure some of these important branching points, radioactive targets of 147Pm and 171Tm have been produced by irradiation of stable isotopes at the ILL high flux reactor. Neutron capture on 146Nd and 170Er at the reactor was followed by beta decay and the resulting matrix was purified via radiochemical separation at PSI. The radioactive targets have been used for time-of-flight measurements at the CERN n_TOF facility using the 19 and 185 m beam lines during 2014 and 2015. The capture cascades were detected using a set of four C6D6 scintillators, allowing to observe the associated neutron capture resonances. The results presented in this work are the first ever determination of the resonance capture cross section of 147Pm and 171Tm. Activation experiments on the same 147Pm and 171Tm targets with a high-intensity 30 keV quasi-Maxwellian flux of neutrons will be performed using the SARAF accelerator and the Liquid-Lithium Target (LiLiT) in order to extract the corresponding Maxwellian Average Cross Section (MACS). The status of these experiments and preliminary results will be presented and discussed as well.
