Simultaneous measurement of neutron-induced capture and fission reactions at CERN

  • C. Guerrero
  • E. Berthoumieux
  • D. Cano-Ott
  • E. Mendoza
  • S. Andriamonje
  • J. Andrzejewski
  • L. Audouin
  • M. Barbagallo
  • V. Bécares
  • F. Bečvář
  • F. Belloni
  • J. Billowes
  • M. Brugger
  • M. Calviani
  • F. Calviño
  • C. Carrapiço
  • F. Cerutti
  • E. Chiaveri
  • M. Chin
  • N. Colonna
  • G. Cortés
  • M. A. Cortés-Giraldo
  • M. Diakaki
  • I. Dillmann
  • C. Domingo-Pardo
  • I. Duran
  • C. Eleftheriadis
  • M. Fernández-Ordóñez
  • A. Ferrari
  • S. Ganesan
  • G. Giubrone
  • M. B. Gómez-Hornillos
  • I. F. Gonçalves
  • E. González-Romero
  • F. Gramegna
  • E. Griesmayer
  • F. Gunsing
  • D. Jenkins
  • E. Jericha
  • Y. Kadi
  • F. Käppeler
  • D. Karadimos
  • J. Kroll
  • M. Krtička
  • E. Lebbos
  • C. Lederer
  • H. Leeb
  • R. Losito
  • M. Lozano
  • A. Manousos
  • J. Marganiec
  • S. Marrone
  • T. Martinez
  • C. Massimi
  • P. F. Mastinu
  • M. Meaze
  • A. Mengoni
  • P. M. Milazzo
  • C. Paradela
  • A. Pavlik
  • J. Perkowski
  • R. Plag
  • J. Praena
  • J. M. Quesada
  • T. Rauscher
  • R. Reifarth
  • F. Roman
  • C. Rubbia
  • R. Sarmento
  • G. Tagliente
  • J. L. Tain
  • D. Tarrío
  • L. Tassan-Got
  • A. Tsinganis
  • G. Vannini
  • V. Variale
  • P. Vaz
  • A. Ventura
  • M. Vermeullen
  • V. Vlachoudis
  • R. Vlastou
  • A. Wallner
  • T. Ware
  • C. Weiß
  • T. Wright
Open Access
Tools for Experiment and Theory

Abstract

The measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the \( \gamma\) -ray background generated in the competing fission reactions. At the CERN neutron time-of-flight facility n_TOF we have combined the Total Absorption Calorimeter (TAC) capture detector with a set of three 235U loaded MicroMegas (MGAS) fission detectors for measuring simultaneously two reactions: capture and fission. The results presented here include the determination of the three detection efficiencies involved in the process: \(\ensuremath \varepsilon_{TAC}(n,f)\) , \(\ensuremath \varepsilon_{TAC}(n,\gamma)\) and \(\ensuremath \varepsilon_{MGAS}(n,f)\) . In the test measurement we have succeeded in measuring simultaneously with a high total efficiency the 235U capture and fission cross-sections, disentangling accurately the two types of reactions. The work presented here proves that accurate capture cross-section measurements of fissile isotopes are feasible at n_TOF.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • C. Guerrero
    • 1
    • 2
  • E. Berthoumieux
    • 1
    • 7
  • D. Cano-Ott
    • 2
  • E. Mendoza
    • 2
  • S. Andriamonje
    • 1
  • J. Andrzejewski
    • 4
  • L. Audouin
    • 3
  • M. Barbagallo
    • 10
  • V. Bécares
    • 2
  • F. Bečvář
    • 5
  • F. Belloni
    • 6
  • J. Billowes
    • 25
  • M. Brugger
    • 1
  • M. Calviani
    • 1
  • F. Calviño
    • 8
  • C. Carrapiço
    • 9
  • F. Cerutti
    • 1
  • E. Chiaveri
    • 1
  • M. Chin
    • 1
  • N. Colonna
    • 10
  • G. Cortés
    • 8
  • M. A. Cortés-Giraldo
    • 11
  • M. Diakaki
    • 24
  • I. Dillmann
    • 12
  • C. Domingo-Pardo
    • 13
  • I. Duran
    • 14
  • C. Eleftheriadis
    • 27
  • M. Fernández-Ordóñez
    • 2
  • A. Ferrari
    • 1
  • S. Ganesan
    • 15
  • G. Giubrone
    • 16
  • M. B. Gómez-Hornillos
    • 8
  • I. F. Gonçalves
    • 9
  • E. González-Romero
    • 2
  • F. Gramegna
    • 17
  • E. Griesmayer
    • 18
  • F. Gunsing
    • 7
  • D. Jenkins
    • 26
  • E. Jericha
    • 18
  • Y. Kadi
    • 1
  • F. Käppeler
    • 18
  • D. Karadimos
    • 24
  • J. Kroll
    • 5
  • M. Krtička
    • 5
  • E. Lebbos
    • 1
  • C. Lederer
    • 19
  • H. Leeb
    • 18
  • R. Losito
    • 1
  • M. Lozano
    • 11
  • A. Manousos
    • 27
  • J. Marganiec
    • 2
  • S. Marrone
    • 10
  • T. Martinez
    • 2
  • C. Massimi
    • 20
  • P. F. Mastinu
    • 17
  • M. Meaze
    • 10
  • A. Mengoni
    • 21
  • P. M. Milazzo
    • 6
  • C. Paradela
    • 14
  • A. Pavlik
    • 19
  • J. Perkowski
    • 4
  • R. Plag
    • 13
  • J. Praena
    • 11
  • J. M. Quesada
    • 11
  • T. Rauscher
    • 22
  • R. Reifarth
    • 13
  • F. Roman
    • 1
    • 23
  • C. Rubbia
    • 1
  • R. Sarmento
    • 9
  • G. Tagliente
    • 10
  • J. L. Tain
    • 16
  • D. Tarrío
    • 14
  • L. Tassan-Got
    • 3
  • A. Tsinganis
    • 24
    • 1
  • G. Vannini
    • 20
  • V. Variale
    • 10
  • P. Vaz
    • 9
  • A. Ventura
    • 21
  • M. Vermeullen
    • 26
  • V. Vlachoudis
    • 1
  • R. Vlastou
    • 24
  • A. Wallner
    • 19
  • T. Ware
    • 25
  • C. Weiß
    • 18
  • T. Wright
    • 25
  1. 1.European Organization for Nuclear Research (CERN)GenevaSwitzerland
  2. 2.Centro de Investigaciones Energéticas Medioambientales y Technológicas (CIEMAT)MadridSpain
  3. 3.Centre National de la Recherche Scientifique/IN2P3 - IPNOrsayFrance
  4. 4.Uniwersytet ŁódzkiLodzPoland
  5. 5.Charles UniversityPragueCzech Republic
  6. 6.Istituto Nazionale di Fisica NucleareTriesteItaly
  7. 7.Commissariat à l’Énergie Atomique (CEA) Saclay - IrfuGif-sur-YvetteFrance
  8. 8.Universitat Politècnica de CatalunyaBarcelonaSpain
  9. 9.Instituto Tecnológico e Nuclear (ITN)LisbonPortugal
  10. 10.Istituto Nazionale di Fisica NucleareBariItaly
  11. 11.Universidad de SevillaSevillaSpain
  12. 12.Physik Department E12 and Excellence Cluster UniverseTechnische Universität MünchenMunichGermany
  13. 13.GSI Helmholtzzentrum für Schwerionenforschung GmbHDarmstadtGermany
  14. 14.Universidade de Santiago de CompostelaSantiago de CompostelaSpain
  15. 15.Bhabha Atomic Research Centre (BARC)MumbaiIndia
  16. 16.Instituto de Física CorpuscularCSIC-Universidad de ValenciaValenciaSpain
  17. 17.Istituto Nazionale di Fisica NucleareLaboratori Nazionali di LegnaroLegnaroItaly
  18. 18.AtominstitutTechnische Universität WienWienAustria
  19. 19.University of ViennaFaculty of PhysicsViennaAustria
  20. 20.Dipartimento di Fisica, Università di BolognaINFN, Sezione di BolognaBolognaItaly
  21. 21.Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA)BolognaItaly
  22. 22.Department of Physics and AstronomyUniversity of BaselBaselSwitzerland
  23. 23.Horia Hulubei National Institute of Physics and Nuclear EngineeringIFIN HH, BucharestMagureleRomania
  24. 24.National Technical University of Athens (NTUA)AthensGreece
  25. 25.University of ManchesterManchesterUK
  26. 26.University of YorkYorkUK
  27. 27.Aristotle University of ThessalonikiThessalonikiGreece

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