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

Neutron-induced fission cross sections for {sup nat}Pb and {sup 209}Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n{sub T}OF) 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 {sup 235}U and {sup 238}U 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.

Isabel S. Gonçalves | Yacine Kadi | G. Vannini | Roberto Capote | Roberto Losito | I. Duran | L. Tassan-Got | S. Isaev | C. Le Naour | U. Abbondanno | G. Aerts | F. Alvarez-Velarde | J. Andrzejewski | Gerald Badurek | P. Baumann | F. Calviño | Marco Calviani | D. Cano-Ott | C. Carrapiço | P. Cennini | E. Chiaveri | G. Cortes | M. Dahlfors | I. Dillmann | W. Dridi | M. Embid-Segura | L. Ferrant | K. Fujii | A. Goverdovski | F. Gramegna | F. Gunsing | Masayuki Igashira | D. Karadimos | M. Kerveno | V. Ketlerov | V. Konovalov | C. Lederer | A. Lindote | S. Lukic | S. Marrone | P. F. Mastinu | A. Mengoni | Corrie S. Moreau | M. Mosconi | L. Perrot | A. J. M. Plompen | A. Plukis | A. Poch | C. Pretel | J. M. Quesada | Thomas Rauscher | G. Rudolf | P. Rullhusen | J. Salgado | L. Sarchiapone | I. Savvidis | L. Tavora | R. Terlizzi | D. Villamarin | F. Voss | S. Walter | M. Krtička | Carlo Rubbia | F. Käppeler | J. Praena | F. Belloni | A. Ferrari | C. Domingo-Pardo | C. Papachristodoulou | E. Berthoumieux | E. González-Romero | Carlos Guerrero | E. Mendoza | R. Reifarth | D. Tarrío | Martin Heil | L. Audouin | Aaron Couture | D. Karamanis | J. Pancin | S. Andriamonje | N. Patronis | Michael Wiescher | Nicola Colonna | Heinz Oberhummer | R. Sarmento | Adonai Herrera-Martinez | R. Plag | G. Tagliente | James L. Cox | P. Pavlopoulos | E. Griesmayer | A. Ventura | R. C. Haight | R. Ferreira-Marques | R. Dolfini | E. Jericha | P. M. Milazzo | V. Chepel | C. Eleftheriadis | E. Kossionides | H. Leeb | I. Lopes | M. Lozano | J. Marganiec | F. Neves | C. Paradela | A. Pavlik | M. T. Pigni | M. Rosetti | J. L. Tain | V. Vlachoudis | R. Vlastou | K. Wisshak | P. A. Assimakopoulos | C. T. Papadopoulos | F. Bečvář | P. Vaz | C. Lampoudis | E. Griesmayer | A. Ferrari | S. Marrone | Y. Kadi | A. Herrera-Martínez | R. Haight | P. Vaz | G. Vannini | V. Vlachoudis | M. Lozano | R. Capote | F. Belloni | C. Papadopoulos | M. Rosetti | D. Karamanis | B. Haas | C. Santos | M. Igashira | J. Andrzejewski | A. Albornoz | P. Cennini | C. Rubbia | C. Lampoudis | R. Dolfini | A. Lindote | F. Neves | S. Lukić | M. Calviani | R. Losito | H. Wendler | M. Kerveno | A. Plompen | G. Rudolf | F. Käppeler | R. Reifarth | W. Furman | S. Andriamonje | C. Eleftheriadis | P. Pavlopoulos | D. Trubert | C. L. Naour | C. Stephan | L. Tassan-got | L. Audouin | C. Domingo-Pardo | A. Couture | E. Chiaveri | L. Sarchiapone | F. Bečvář | N. Colonna | E. Berthoumieux | F. Calviño | D. Cano-Ott | G. Cortes | I. Ďuran | E. González-Romero | C. Guerrero | F. Gunsing | T. Martinez | P. Mastinu | E. Mendoza | A. Mengoni | P. Milazzo | N. Patronis | J. Praena | J. Quesada | G. Tagliente | J. Taı́n | R. Vlastou | C. Massimi | M. Dahlfors | C. Paradela | B. Berthier | L. Ferrant | S. Isaev | S. David | U. Abbondanno | K. Fujii | C. Moreau | G. Aerts | F. Álvarez-Velarde | A. Goverdovski | E. Jericha | V. Ketlerov | C. Lederer | H. Leeb | J. Marganiec | T. Rauscher | R. Plag | K. Wisshak | P. Assimakopoulos | G. Badurek | V. Chepel | J. Cox | M. Embid-Segura | R. Ferreira-Marques | H. Frais‐Koelbl | F. Gramegna | M. Heil | P. Koehler | V. Konovalov | E. Kossionides | H. Oberhummer | S. O'Brien | J. Pancin | L. Perrot | A. Plukis | A. Poch | C. Pretel | P. Rullhusen | J. Salgado | L. Tavora | R. Terlizzi | F. Voss | M. Wiescher | P. Baumann | I. Gonçalves | M. Mosconi | C. Carrapiço | W. Dridi | D. Karadimos | I. Lopes | M. Oshima | C. Papachristodoulou | I. Savvidis | D. Villamarín | S. Walter | I. Dillmann | M. Pigni | R. Sarmento | L. Fitzpatrick | L. Marques | C. Massimi | H. Frais-Koelbl | W. I. Furman | B. Haas | Christoph A. Stephan | H. Wendler | P. E. Koehler | B. Berthier | C. Santos | A. Carrillo de Albornoz | L. Fitzpatrick | L. Marques | M. Oshima | Trinitario Martinez | D. Trubert | S. David | Siobhán O'Brien | A. Ventura | D. Villamarı́n | M. Krticka | D. Tarrío | A. Pavlik | C. Naour | J. Tain | G. Cortés

[1]  N. Olsson,et al.  An ionization chamber with Frisch grids for studies of high-energy neutron-induced fission , 2001 .

[2]  Soo-Youl Oh,et al.  International Evaluation of Neutron Cross Section Standards , 2009 .

[3]  L. Tassan-got,et al.  Neutron-Induced Fission Cross Section Measurements between 1 eV and 250 MeV , 2002 .

[4]  Walker,et al.  Systematics of fission fragment total kinetic energy release. , 1985, Physical review. C, Nuclear physics.

[5]  Tokio Fukahori,et al.  Energy dependence of proton induced fission cross sections for heavy nuclei in the energy range 200-1000 MeV , 2006 .

[6]  Oleg Shcherbakov,et al.  Neutron-Induced Fission of 233U, 238U, 232Th, 239Pu, 237Np, natPb and 209Bi Relative to 235U in the Energy Range 1-200 MeV , 2002 .

[7]  J. Blomgren,et al.  Measurements of neutron-induced fission cross-sections of 205Tl, 204,206,207,208Pb and 209Bi with a multi-section Frisch-gridded ionization chamber , 2006 .

[8]  Smirnov,et al.  Relative and absolute neutron-induced fission cross sections of 208Pb, 209Bi, and 238U in the intermediate energy region. , 1996, Physical review. C, Nuclear physics.

[9]  Andy Buffler,et al.  Cross Sections for Neutron-Induced Fission of 235U, 238U, 209Bi, and natPb in the Energy Range from 33 to 200 MeV Measured Relative to n-p Scattering , 2007 .

[10]  A. Prokofiev.  Compilation and systematics of proton-induced fission cross-section data , 2001 .

[11]  E. Radermacher,et al.  Results from the commissioning of the n_TOF spallation neutron source at CERN , 2003 .