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 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.
Armbruster
P
P
Gesellschaft für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany.
Benlliure
J
J
Bernas
M
M
Boudard
A
A
Casarejos
E
E
Czajkowski
S
S
Enqvist
T
T
Leray
S
S
Napolitani
P
P
Pereira
J
J
Rejmund
F
F
Ricciardi
M-V
MV
Schmidt
K-H
KH
Stéphan
C
C
Taieb
J
J
Tassan-Got
L
L
Volant
C
C