Neutron-induced fission cross sections for natPb and 209Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to 235U and 238U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.

Neutron-induced fission cross section of nat-Pb and 209-Bi from threshold to 1 GeV: An improved parametrization.

MASSIMI, CRISTIAN;VANNINI, GIANNI;
2011

Abstract

Neutron-induced fission cross sections for natPb and 209Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to 235U and 238U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.
D. Tarrío; L. Tassan-Got; L. Audouin;; B. Berthier; I. Duran; L. Ferrant; S. Isaev; C. Le Naour; C. Paradela; C. Stephan; D. Trubert; U. Abbondanno; G. Aerts; H. Álvarez; F. Álvarez-Velarde; S. Andriamonje; J. Andrzejewski; P. Assimakopoulos; G. Badurek; P. Baumann; F. Bečvář; E. Berthoumieux; F. Calviño; M. Calviani;; D. Cano-Ott; R. Capote;; C. Carrapiço;; P. Cennini; V. Chepel; E. Chiaveri; N. Colonna; G. Cortes; A. Couture; J. Cox; M. Dahlfors; S. David; I. Dillmann; C. Domingo-Pardo;; W. Dridi; C. Eleftheriadis; M. Embid-Segura; A. Ferrari; R. Ferreira-Marques; K. Fujii; W. Furman; I. Goncalves; E. González-Romero; F. Gramegna; C. Guerrero; F. Gunsing; B. Haas; R. Haight; M. Heil; A. Herrera-Martinez; M. Igashira; E. Jericha; Y. Kadi; F. Käppeler; D. Karadimos; D. Karamanis; M. Kerveno; P. Koehler; E. Kossionides; M. Krtička; C. Lampoudis;; H. Leeb; A. Lindote; I. Lopes; M. Lozano; S. Lukic; J. Marganiec; S. Marrone; T. Martínez; C. Massimi; P. Mastinu; A. Mengoni;; P. M. Milazzo; C. Moreau; M. Mosconi; F. Neves; H. Oberhummer; S. O’Brien; M. Oshima; J. Pancin; C. Papachristodoulou; C. Papadopoulos; N. Patronis; A. Pavlik; P. Pavlopoulos; L. Perrot; M. T. Pigni; R. Plag; A. Plompen; A. Plukis; A. Poch; J. Praena; C. Pretel; J. Quesada; T. Rauscher; R. Reifarth; C. Rubbia; G. Rudolf; P. Rullhusen; J. Salgado; C. Santos; L. Sarchiapone; I. Savvidis; G. Tagliente; J. L. Tain; L. Tavora; R. Terlizzi; G. Vannini; P. Vaz; A. Ventura; D. Villamarin; M. C. Vincente; V. Vlachoudis; R. Vlastou; F. Voss; S. Walter; M. Wiescher; K. Wisshak.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/102408
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