Measurement of a complete set of nuclides, cross sections, and kinetic energies in spallation of 238U 1A GeV with protons

Spallation residues and fission fragments from 1A GeV 238U 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...

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Bibliographic Details
Published in:Physical review letters 2004-11, Vol.93 (21), p.212701-212701
Main Authors: Armbruster, P, Benlliure, J, Bernas, M, Boudard, A, Casarejos, E, Czajkowski, S, Enqvist, T, Leray, S, Napolitani, P, Pereira, J, Rejmund, F, Ricciardi, M-V, Schmidt, K-H, Stéphan, C, Taieb, J, Tassan-Got, L, Volant, C
Format: Article
Language:English
Subjects:
Nuclear Experiment
Physics
Online Access:Get full text
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Summary:Spallation residues and fission fragments from 1A GeV 238U 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 microb 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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.93.212701