Accession Number:

AD0698753

Title:

INTERLABORATORY COMPARISON OF MORTALITY IN SHEEP EXPOSED TO 60Co GAMMA RADIATION,

Descriptive Note:

Corporate Author:

AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX

Report Date:

1969-10-01

Pagination or Media Count:

40.0

Abstract:

An attempt was made to resolve the differences in sheep sixty day median lethal dose LD5060 values between Air Force Weapons Laboratory AFWL and Naval Radiological Defense Laboratory NRDL. Each laboratory purchased sheep from local suppliers. One-half the animals were air lifted to the recipient Laboratory in January 1968. The second half of the animal exchange was accomplished in June 1968. Each laboratory gave graded doses of 60Co gamma radiation on successive days to 1 animals held for six months acclimatized and 2 animals held for one week nonacclimatized. Median lithal dose values on NRDL sheep irradiated at AFWL increased from previous values. Median lethal dose values on AFWL sheep irradiated at NRDL likewise increased. The findings of the interlaboratory investigation confirmed the existence of factors not presently understood that resulted in higher LD5060 values than encountered at the home laboratories. A number of factors potentially responsible for the findings are discussed. Author

Subject Categories:

  • Radiobiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE