High-precision measurement of total fission cross sections in spallation reactions of 208Pb and 238U

K. -H. Schmidt; B. Jurado; R. Pleskac; M. V. Ricciardi; J. Benlliure; T. Enqvist; F. Farget; A. Bacquias; L. Giot; V. Henzl; D. Henzlova; A. Kelic-Heil; S. Leray; S. Lukic; Son Nguyen Ngoc; A. Boudard; E. Casarejos; M. Fernandez; T. Kurtukian; P. Nadtochy; D. Perez; C. Schmitt

doi:10.1103/PhysRevC.87.034601

High-precision measurement of total fission cross sections in spallation reactions of 208Pb and 238U

K. -H. Schmidt B. Jurado ¹ R. Pleskac M. V. Ricciardi J. Benlliure T. Enqvist F. Farget ² A. Bacquias L. Giot ³ V. Henzl D. Henzlova A. Kelic-Heil S. Leray ⁴ S. Lukic Son Nguyen Ngoc A. Boudard ⁴ E. Casarejos M. Fernandez T. Kurtukian ⁵ P. Nadtochy D. Perez C. Schmitt ²

1 ACEN

CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

2 GANIL - Grand Accélérateur National d'Ions Lourds

3 SUBATECH - Laboratoire SUBATECH Nantes

4 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)

5 NEX

CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

Abstract : Total cross sections for proton- and deuteron-induced-fission of 208Pb and 238U have been determined in the energy range between 500 MeV and 1 GeV. The experiment has been performed in inverse kinematics at GSI Darmstadt, facilitating the counting of the projectiles and the identification of the reaction products. High precision between 5 and 7 percent has been achieved by individually counting the beam particles and by registering both fission fragments in coincidence with high efficiency and full Z resolution. Fission was clearly distinguished from other reaction channels. The results were found to deviate by up to 30 percent from Prokofiev's systematics on total fission cross sections. There is good agreement with an elaborate experiment performed in direct kinematics.

Document type :

Journal articles

Physical Review C, American Physical Society, 2013, 87, pp.034601. <10.1103/PhysRevC.87.034601>

Domain :

Physics / Nuclear Experiment

http://hal.in2p3.fr/in2p3-00726669
Contributor : Michel Lion <>
Submitted on : Friday, August 31, 2012 - 8:49:31 AM
Last modification on : Monday, October 13, 2014 - 3:43:25 PM

High-precision measurement of total fission cross sections in spallation reactions of 208Pb and 238U

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