Accession Number : AD0672896


Title :   THE ACUTE MORTALITY RESPONSE OF BEAGLES TO MIXED GAMMA-NEUTRON RADIATIONS AND 250 KVP X RAYS


Corporate Author : ARMED FORCES RADIOBIOLOGY RESEARCH INST BETHESDA MD


Personal Author(s) : George, R. E. ; Stanley, R. E. ; Wise, D. ; Barron, E. L.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=AD0672896


Report Date : FEB 1968


Pagination or Media Count : 27


Abstract : Beagle median lethality studies were conducted using 250 kVp x rays and TRIGA reactor (mixed gamma-neutron) radiations. Purebred beagles were irradiated at midline tissue doses from 166 to 292 rads. The dose rates were approximately 17 rads/min, and exposures were Class A uniform. LD50/60 values of 206 plus or minus 3.6 and 218 plus or minus 3.0 rads were obtained for the x rays and the mixed gamma-neutron radiations, respectively. The RBE of the mixed gamma-neutron radiations was 0.94. Hematological values, clinical symptoms, and survival time data were also collected.


Descriptors :   *RADIATION INJURIES, GAMMA RAYS, SURVIVAL(PERSONNEL), LETHAL DOSAGE, RADIOBIOLOGY, RADIATION DOSAGE, RADIATION EFFECTS, HEMATOLOGY, X RAYS, NEUTRONS


Subject Categories : RADIOBIOLOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE