Measurement of a Complete Set of Nuclides, Cross Sections, and Kinetic Energies in Spallation of 238U 1A GeV with Protons

Abstract : Spallation residues and fission fragments from 1A238 GeV U projectiles irradiating a liquid hydrogen target were investigated by using the fragment separator at GSI for magnetic selection of reaction products including ray-tracing, energy-loss and time-of-flight techniques. The longitudinal-momentum spectra of identified fragments were analyzed, and evaporation residues and fission fragments could be separated. For 1385 nuclides, production cross sections down to values of 10 µb with a mean accuracy of 15%, velocities in the uranium rest frame and kinetic energies were determined. In the reaction all elements from uranium to nitrogen were found, each with a large number of isotopes
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Submitted on : Tuesday, February 1, 2005 - 11:27:33 AM
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P. Armbruster, J. Benlliure, M. Bernas, A. Boudard, E. Casarejos, et al.. Measurement of a Complete Set of Nuclides, Cross Sections, and Kinetic Energies in Spallation of 238U 1A GeV with Protons. Physical Review Letters, American Physical Society, 2004, 93, pp.212701-4. ⟨10.1103/PhysRevLett.93.212701⟩. ⟨in2p3-00023691⟩

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