Regular Article - Experimental Physics

The European Physical Journal A

, 47:160

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Measurement of the neutron-induced fission cross-section of 243Am relative to 235U from 0.5 to 20 MeV

  • F. BelloniAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
  • , M. CalvianiAffiliated withIstituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di LegnaroCERN
  • , N. ColonnaAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
  • , P. MastinuAffiliated withIstituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di Legnaro
  • , P. M. MilazzoAffiliated withIstituto Nazionale di Fisica Nucleare (INFN) Email author 
  • , U. AbbondannoAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
  • , G. AertsAffiliated withCEA, Irfu
  • , H. ÁlvarezAffiliated withUniversidade de Santiago de Compostela
  • , F. Alvarez-VelardeAffiliated withCentro de Investigaciones Energeticas Medioambientales y Technologicas
    • , S. AndriamonjeAffiliated withCEA, Irfu
    • , J. AndrzejewskiAffiliated withUniversity of Lodz
    • , L. AudouinAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , G. BadurekAffiliated withAtominstitut der Österreichischen Universitäten, Technische Universität Wien
    • , M. BarbagalloAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , P. BaumannAffiliated withCentre National de la Recherche Scientifique/IN2P3, IReS
    • , F. BečvářAffiliated withFaculty of Mathematics and Physics, Charles University in Prague
    • , E. BerthoumieuxAffiliated withCEA, Irfu
    • , F. CalviñoAffiliated withUniversitat Politecnica de Catalunya
    • , D. Cano-OttAffiliated withUniversidade de Santiago de Compostela
    • , R. CapoteAffiliated withInternational Atomic Energy Agency (IAEA), NAPC/Nuclear Data SectionUniversidad de Sevilla
    • , C. CarrapiçoAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , P. CenniniAffiliated withCERN
    • , V. ChepelAffiliated withLIP - Coimbra & Departamento de Fisica da Universidade de Coimbra
    • , E. ChiaveriAffiliated withCERN
    • , G. CortesAffiliated withUniversitat Politecnica de Catalunya
    • , A. CoutureAffiliated withUniversity of Notre Dame
    • , J. CoxAffiliated withUniversity of Notre Dame
    • , M. DahlforsAffiliated withCERN
    • , S. DavidAffiliated withCentre National de la Recherche Scientifique/IN2P3, IReS
    • , I. DillmannAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , C. Domingo-PardoAffiliated withInstituto de Física Corpuscular, CSIC-Universidad de Valencia
    • , W. DridiAffiliated withCEA, Irfu
    • , I. DuranAffiliated withUniversidade de Santiago de Compostela
    • , C. EleftheriadisAffiliated withAristotle University of Thessaloniki
    • , M. Embid-SeguraAffiliated withUniversidade de Santiago de Compostela
    • , A. FerrariAffiliated withCERN
    • , R. Ferreira-MarquesAffiliated withLIP - Coimbra & Departamento de Fisica da Universidade de Coimbra
    • , K. FujiiAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , W. FurmanAffiliated withJoint Institute for Nuclear Research, Frank Laboratory of Neutron Physics
    • , I. GoncalvesAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , E. Gonzalez-RomeroAffiliated withUniversidade de Santiago de Compostela
    • , A. GoverdovskiAffiliated withInstitute of Physics and Power Engineering
    • , F. GramegnaAffiliated withIstituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di Legnaro
    • , C. GuerreroAffiliated withCentro de Investigaciones Energeticas Medioambientales y Technologicas
    • , F. GunsingAffiliated withCEA, Irfu
    • , B. HaasAffiliated withCentre National de la Recherche Scientifique/IN2P3, CENBG
    • , R. HaightAffiliated withLos Alamos National Laboratory
    • , M. HeilAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , A. Herrera-MartinezAffiliated withCERN
    • , M. IgashiraAffiliated withTokyo Institute of Technology
    • , E. JerichaAffiliated withAtominstitut der Österreichischen Universitäten, Technische Universität Wien
    • , F. KäppelerAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , Y. KadiAffiliated withCERN
    • , D. KaradimosAffiliated withUniversity of Ioannina
    • , D. KaramanisAffiliated withUniversity of Ioannina
    • , M. KervenoAffiliated withCentre National de la Recherche Scientifique/IN2P3, IReS
    • , P. KoehlerAffiliated withOak Ridge National Laboratory
    • , E. KossionidesAffiliated withNCSR
    • , M. KrtičkaAffiliated withFaculty of Mathematics and Physics, Charles University in Prague
    • , C. LamboudisAffiliated withAristotle University of Thessaloniki
    • , H. LeebAffiliated withAtominstitut der Österreichischen Universitäten, Technische Universität Wien
    • , A. LindoteAffiliated withLIP - Coimbra & Departamento de Fisica da Universidade de Coimbra
    • , I. LopesAffiliated withLIP - Coimbra & Departamento de Fisica da Universidade de Coimbra
    • , M. LozanoAffiliated withUniversidad de Sevilla
    • , S. LukicAffiliated withCentre National de la Recherche Scientifique/IN2P3, IReS
    • , J. MarganiecAffiliated withUniversity of Lodz
    • , S. MarroneAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , T. MartínezAffiliated withCentro de Investigaciones Energeticas Medioambientales y Technologicas
    • , C. MassimiAffiliated withDipartimento di Fisica, Università di Bologna, Sezione INFN di Bologna
    • , M. H. MeazeAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , A. MengoniAffiliated withCERNInternational Atomic Energy Agency (IAEA), NAPC/Nuclear Data Section
    • , C. MoreauAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , M. MosconiAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , F. NevesAffiliated withLIP - Coimbra & Departamento de Fisica da Universidade de Coimbra
    • , H. OberhummerAffiliated withAtominstitut der Österreichischen Universitäten, Technische Universität Wien
    • , S. O’BrienAffiliated withUniversity of Notre Dame
    • , J. PancinAffiliated withCEA, Irfu
    • , C. PapachristodoulouAffiliated withUniversity of Ioannina
    • , C. PapadopoulosAffiliated withNational Technical University of Athens
    • , C. ParadelaAffiliated withUniversidade de Santiago de Compostela
    • , N. PatronisAffiliated withUniversity of Ioannina
    • , A. PavlikAffiliated withInstitut für Fakultät für Physik, Universität Wien
    • , P. PavlopoulosAffiliated withPôle Universitaire Léonard de Vinci
    • , L. PerrotAffiliated withCEA, Irfu
    • , M. T. PigniAffiliated withOak Ridge National Laboratory
    • , R. PlagAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , A. PlompenAffiliated withCEC-JRC-IRMM
    • , A. PlukisAffiliated withCEA, Irfu
    • , A. PochAffiliated withUniversitat Politecnica de Catalunya
    • , J. PraenaAffiliated withUniversidad de Sevilla
    • , C. PretelAffiliated withUniversitat Politecnica de Catalunya
    • , J. QuesadaAffiliated withUniversidad de Sevilla
    • , T. RauscherAffiliated withDepartment of Physics and Astronomy, University of Basel
    • , R. ReifarthAffiliated withLos Alamos National Laboratory
    • , M. RosettiAffiliated withENEA
    • , C. RubbiaAffiliated withUniversità degli Studi di Pavia
    • , G. RudolfAffiliated withCentre National de la Recherche Scientifique/IN2P3, IReS
    • , P. RullhusenAffiliated withCEC-JRC-IRMM
    • , J. SalgadoAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , C. SantosAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , L. SarchiaponeAffiliated withCERN
    • , I. SavvidisAffiliated withAristotle University of Thessaloniki
    • , C. StephanAffiliated withCentre National de la Recherche Scientifique/IN2P3, IPN
    • , G. TaglienteAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , J. L. TainAffiliated withInstituto de Física Corpuscular, CSIC-Universidad de Valencia
    • , D. TarrioAffiliated withUniversidade de Santiago de Compostela
    • , L. Tassan-GotAffiliated withCentre National de la Recherche Scientifique/IN2P3, IPN
    • , L. TavoraAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , R. TerlizziAffiliated withIstituto Nazionale di Fisica Nucleare (INFN)
    • , G. VanniniAffiliated withDipartimento di Fisica, Università di Bologna, Sezione INFN di Bologna
    • , P. VazAffiliated withInstituto Tecnológico e Nuclear (ITN)
    • , A. VenturaAffiliated withENEA
    • , D. VillamarinAffiliated withCentro de Investigaciones Energeticas Medioambientales y Technologicas
    • , M. C. VincenteAffiliated withCentro de Investigaciones Energeticas Medioambientales y Technologicas
    • , V. VlachoudisAffiliated withCERN
    • , R. VlastouAffiliated withNational Technical University of Athens
    • , F. VossAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , S. WalterAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology
    • , M. WiescherAffiliated withUniversity of Notre Dame
    • , K. WisshakAffiliated withCampus Nord, Institut für Kernphysik, Karlsruhe Institute of Technology

Abstract

The ratio of the neutron-induced fission cross-sections of 243Am and 235U was measured in the energy range from 0.5 to 20 MeV with uncertainties of ≈ 4%. The experiment was performed at the CERN n_TOF facility using a fast ionization chamber. With the good counting statistics that could be achieved thanks to the high instantaneous flux and the low backgrounds, the present results are useful for resolving discrepancies in previous data sets and are important for future reactors with improved fuel burn-up.