Neutron Effectiveness for Causing Incapacitation in Monkeys
Abstract
Fifty-eight male monkeys (Macaca mulatta) were trained by shock avoidance conditioning to work a simultaneous visual discrimination problem. Trained subjects were irradiated in either a nuclear reactor-produced neutron field (incident neutron to gamma ray ratio of about 10) or a similarly produced gamma ray field (incident neutron to gamma ray ratio of about 0.1). In all exposures the midbrain dose rate was about 2000 rads/minute. The midbrain dose most likely to cause early transient incapacitation (ETI) in 50 percent of the irradiated subjects was determined. The signs and symptoms of ETI were the same whether the monkey received gamma or neutron radiations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1972
- Accession Number
- AD0742076
Entities
People
- J. W. Thorp
- Richard W. Young
Organizations
- Armed Forces Radiobiology Research Institute