Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility nTOF

Belloni, F.; Milazzo, P.M.; Abbondanno, U.; Fujii, K.; Moreau, C.; Calviani, M.; Colonna, N.; Barbagallo, M.; Marrone, S.; Meaze, M.H.; Tagliente, G.; Terlizzi, R.; Mastinu, P.; Gramegna, F.; Aerts, G.; Andriamonje, S.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Perrot, L.; Plukis, A.; Alvarez, H.; Cano-Ott, D.; Duran, I.; Embid-Segura, M.; Gonzalez-Romero, E.; Paradela, C.; Tarrio, D.; Alvarez-Velarde, F.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vincente, M.C.; Andrzejewski, J.; Marganiec, J.; Audouin, L.; Dillmann, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K.; Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Baumann, P.; David, S.; Kerveno, M.; Lukic, S.; Rudolf, G.; Becvar, F.; Krticka, M.; Calvino, F.; Cortes, G.; Poch, A.; Pretel, C.; Capote, R.; Carrapico, C.; Goncalves, I.; Salgado, J.; Santos, C.; Tavora, L.; Vaz, P.; Cennini, P.; Chiaveri, E.; Dahlfors, M.; Ferrari, A.; Herrera-Martinez, A.; Kadi, Y.; Sarchiapone, L.; Vlachoudis, V.; Chepel, V.; Ferreira-Marques, R.; Lindote, A.; Lopes, I.; Neves, F.; Couture, A.; Cox, J.; O'Brien, S.; Wiescher, M.; Domingo-Pardo, C.; Tain, J.L.; Eleftheriadis, C.; Lamboudis, C.; Savvidis, I.; Furman, W.; Goverdovski, A.; Haas, B.; Haight, R.; Reifarth, R.; Igashira, M.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.; Koehler, P.; Pigni, M.T.; Kossionides, E.; Lozano, M.; Praena, J.; Quesada, J.; Massimi, C.; Vannini, G.; Mengoni, A.; Papadopoulos, C.; Vlastou, R.; Pavlik, A.; Pavlopoulos, P.; Plompen, A.; Rullhusen, P.; Rauscher, T.; Rosetti, M.; Ventura, A.; Rubbia, C.; Stephan, C.; Tassan-Got, L.

doi:10.1140/epja/i2013-13002-3

Published January 2013 | Version v1

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Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility nTOF

1. Istituto Nazionale di Fisica Nucleare (INFN), Trieste (Italy)
2. CERN, Geneva (Switzerland)
3. Laboratori Nazionali di Legnaro, Istituto Nazionale di Fisica Nucleare (INFN), Trieste (Italy)
4. Istituto Nazionale di Fisica Nucleare (INFN), Bari (Italy)
5. Irfu, CEA, Gif-sur-Yvette (France)
6. Universidade de Santiago de Compostela, Santiago de Compostela (Spain)
7. Centro de Investigaciones Energeticas Medioambientales y Technologicas, Madrid (Spain)
8. University of Lodz, Lodz (Poland)
9. Institut fuer Kernphysik, Karlsruhe Institute of Technology, Campus Nord, Nord (Germany)
10. Technische Universitaet Wien, Atominstitut der Oesterreichischen Universitaeten, Wien (Austria)
11. Centre National de la Recherche Scientifique/IN2P3 - IReS, Strasbourg (France)
12. Charles University in Prague, Faculty of Mathematics and Physics, Prague (Czech Republic)
13. Universitat Politecnica de Catalunya, Barcelona (Spain)
14. Universidad de Sevilla, Sevilla (Spain)
15. NAPC/Nuclear Data Section, International Atomic Energy Agency (IAEA), Vienna (Austria)
16. Instituto Tecnologico e Nuclear (ITN), Lisbon (Portugal)
17. LIP - Coimbra and Departamento de Fisica da Universidade de Coimbra, Coimbra (Portugal)
18. University of Notre Dame, Notre Dame (United States)
19. CSIC-Universidad de Valencia, Instituto de Fisica Corpuscular, Valencia (Spain)
20. Aristotle University of Thessaloniki, Thessaloniki (Greece)
21. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna (Russian Federation)
22. Institute of Physics and Power Engineering, Obninsk (Russian Federation)
23. Centre National de la Recherche Scientifique/IN2P3 - CENBG, Bordeaux (France)
24. Los Alamos National Laboratory, New Mexico (United States)
25. Tokyo Institute of Technology, Tokyo (Japan)
26. University of Ioannina, Ioannina (Greece)
27. Oak Ridge National Laboratory, Oak Ridge (United States)
28. NCSR, Athens (Greece)
29. Universita di Bologna, Dipartimento di Fisica, Bologna (Italy)
30. National Technical University of Athens, Athens (Greece)
31. Universitaet Wien, Institut fuer Fakultaet fuer Physik, Wien (Austria)
32. Pole Universitaire Leonard de Vinci, Paris La Defense (France)
33. CEC-JRC-IRMM, Geel (Belgium)
34. University of Basel, Department of Physics and Astronomy, Basel (CH)
35. ENEA, Bologna (IT)
36. Universita degli Studi di Pavia, Pavia (IT)
37. Centre National de la Recherche Scientifique/IN2P3 - IPN, Orsay (FR)

The neutron-induced fission cross-section of 241Am has been measured relative to the standard fission cross-section of 235U between 0.5 and 20 MeV. The experiment was performed at the CERN nTOF facility. Fission fragments were detected by a fast ionization chamber by discriminating against the α -particles from the high radioactivity of the samples. The high instantaneous neutron flux and the low background of the nTOF facility enabled us to obtain uncertainties of ∼ 5%. With the present results it was possible to resolve discrepancies between previous data sets and to confirm current evaluations, thus providing important information for design studies of future reactors with improved fuel burn-up. (orig.)

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Available from: http://dx.doi.org/10.1140/epja/i2013-13002-3

Additional details

DOI: 10.1140/epja/i2013-13002-3;

Journal Title: European Physical Journal. A
Journal Volume: 49
Journal Issue: 1
Journal Page Range: p. 1-6
ISSN: 1434-6001

Country of Publication: Germany
Country of Input or Organization: Germany
INIS RN: 44045837
Subject category: S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator: Numerical Data
Descriptors DEI: AMERICIUM 241 TARGET; EXCITATION FUNCTIONS; EXPERIMENTAL DATA; FAST FISSION; INTEGRAL CROSS SECTIONS; KEV RANGE 100-1000; MEV RANGE 01-10; MEV RANGE 10-100
Descriptors DEC: BARYON REACTIONS; CROSS SECTIONS; DATA; DIFFERENTIAL CROSS SECTIONS; ENERGY RANGE; FISSION; FUNCTIONS; HADRON REACTIONS; INFORMATION; KEV RANGE; MEV RANGE; NEUTRON REACTIONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUMERICAL DATA; TARGETS

Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility nTOF

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Measurement of the neutron-induced fission cross-section of 241Am at the time-of-flight facility nTOF

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