The multiple Coulomb scattering of very heavy charged particles.
An experiment was performed at the Lawrence Berkeley Laboratory BEVALAC to measure the multiple Coulomb scattering of 650-MeV/A uranium nuclei in 0.19 radiation lengths of a Cu target. Differential distributions in the projected multiple scattering angle were measured in the vertical and horizontal planes using silicon position-sensitive detectors to determine particle trajectories before and after target scattering. The results were compared with the multiple Coulomb scattering theories of Fermi and Molière, and with a modification of the Fermi theory, using a Monte Carlo simulation. These theories were in excellent agreement with experiment at the 2 sigma level. The best quantitative agreement is obtained with the Gaussian distribution predicted by the modified Fermi theory.
Wong
M
M
Lawrence Berkeley Laboratory, University of California 94720.
Schimmerling
W
W
Phillips
M H
MH
Ludewigt
B A
BA
Landis
D A
DA
Walton
J T
JT
Curtis
S B
SB
D003198:Computer Simulation; D003300:Copper; D007477:Ions; D009010:Monte Carlo Method; D010315:Particle Accelerators; D011874:Radiometry / Q000295:instrumentation; D012542:Scattering, Radiation; D014501:Uranium
D007477:Ions; D014501:Uranium; D003300:Copper