Improved Neutron Capture Cross Section Measurements with the n_TOF Total Absorption Calorimeter

Autor(en)

Emilio Mendoza, Vicente Bécares, Alfonso Casado, Daniel Cano Ott, Manuel Fernández-Ordóñez, E Gonzalez - Romero, Carlos Guerrero, Trinitario Martinez, Juan Jose Vidriales, J Andrzejewski, J Marganiec, Jan Perkowski, Ludmila Audouin, B Berthier, Laurent Tassan-Got, Vlad Avrigeanu, Mihail Mirea, Frantisek Becvar, M Krticka, Fabio Belloni, P M Milazzo, Eric Berthoumieux, Frank Gunsing, Francisco Calvino, Guillem Cortes, M. Belén Gómez Hornillo, Samuel Andriamonje, Markus Brugger, M Calviani, Fabio Cerutti, E Chiaveri, Arnaud Ferrari, Yacine Kadi, Elias Lebbos, Roberto Losito, Vassilis Vlachoudis, C. Carrapico, Isabel Maria Ferro Goncalves, R. Saarmento, Pedro Vaz, N Colonna, S Marrone, Meaze Moinul, Giuseppe Tagliente, Vincenzo Variale, Iris Dillmann, César Domingo-Pardo, Michael Heil, I Duran, Carlos Paradela, Diego Tarrio, S. Ganesan, Giuseppe Giubrone, Jose Luis Tain Enriquez, F Gramegna, P F Mastinu, Sotirios Harrisopulos, K G Ioannides, Dimitrios Karadimos, E Jericha, Helmut Leeb, C. Weiß, Franz Käppeler, Claudia Lederer, Andreas Pavlik, Anton Wallner, M Lozano, Javier Praena, Jose Manuel Quesada Molina, Cristian Massimi, Gianni Vannini, Alberto Mengoni, A Ventura, Marita Mosconi, R Nolte, R Vlastou

Abstrakt

The n_TOF collaboration operates a Total Absorption Calorimeter (TAC) [1] for measuring neutron capture cross-sections of low-mass and/or radioactive samples. The results obtained with the TAC have led to a substantial improvement of the capture cross sections of (237)Np and (240)Pu [2].

 

The experience acquired during the first measurements has allowed us to optimize the performance of the TAC and to improve the capture signal to background ratio, thus opening the way to more complex and demanding measurements on rare radioactive materials. The new design has been reached by a series of detailed Monte Carlo simulations of complete experiments and dedicated test measurements. The new capture setup will be presented and the main achievements highlighted.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Centro de Investigaciones Energeticas Medioambientales y Tecnológica, University of Lodz, Institut de Physique Nucléaire d'Orsay (IPN), Centre National De La Recherche Scientifique (CNRS), Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Charles University Prague, Istituto Nazionale di Fisica Nucleare (INFN), Roma, French Alternative Energies and Atomic Energy Commission (CEA), Universitat Politècnica de Catalunya, European Organization for Nuclear Research (CERN), Instituto Tecnológico e Nuclear, Instituto Superior Técnico, Technische Universität München, GSI Helmholtzzentrum für Schwerionenforschung, Universidade de Santiago de Compostela (USC), Bhabha Atomic Research Center, Universitat de València, National Centre for Scientific Research Demokritos (NCSR), University of Ioannina, Technische Universität Wien, Karlsruher Institut für Technologie, Universidad de Sevilla, Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile, Physikalisch-Technische Bundesanstalt, National Technical University of Athens (NTUA)

Journal

Journal of the Korean Physical Society

Band

59

Seiten

1813-1816

Anzahl der Seiten

4

ISSN

0374-4884

DOI

https://doi.org/10.3938/jkps.59.1813

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103005 Atomphysik, 203016 Messtechnik

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/improved-neutron-capture-cross-section-measurements-with-the-ntof-total-absorption-calorimeter(58ba1e22-8db5-4442-848e-bc20859dc74c).html