Neutron Production by Ne and Si Ions on a Thick Cu Target at 670 MeV · a with Application to Radiation Protection

Beams of neon and silicon at 670 MeV A from the Bevalac were stopped in a copper target. Neutron yields and angular distributions were measured with activation detectors. Attenuation of neutrons through a concrete shield was measured at 7°, 54° and 72° to the beam direction. Dose equivalent estimates were made in adjoining areas by using moderated BF3 proportional counters and carbon and aluminum activation detectors. Data are presented and radiation protection aspects discussed.