Phys. Rev. Lett. 93, 212701 (2004) [4 pages]Measurement of a Complete Set of Nuclides, Cross Sections, and Kinetic Energies in Spallation of 238U 1A GeV with Protons
P. Armbruster1, J. Benlliure1,2, M. Bernas3, A. Boudard4, E. Casarejos2, S. Czajkowski5, T. Enqvist1 †, S. Leray4, P. Napolitani1,3, J. Pereira2, F. Rejmund1,3, M.-V. Ricciardi1, K.-H. Schmidt1, C. Stéphan3, J. Taieb1,3 ‡, L. Tassan-Got3, and C. Volant4
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 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. ©2004 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v93/e212701
† Present address: CUPP-project P. O. Box 22 FIN-86801 Pyhäsalmi, Finland
See AlsoPhysics News Update: Physics News Update, Number 710, Story #1 (2004). [ Abstract | Previous article | Next article | Issue 21 ] |
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