Zobrazeno 1 - 8
of 8
pro vyhledávání: '"George F. Leong"'
Autor:
John S. Krebs, George F. Leong
Publikováno v:
Radiation Research. 42:601
The LD50 in mice due to gastrointestinal radiation injury from exposure to either60 Co gamma rays or 250 kVp x-rays has been measured for exposure rates ranging from over 100 R/minute down to less than 1 R/minute. The LD50 for60 Co gamma rays was gre
Publikováno v:
Radiation Research. 33:94
Radiation lethality has been studied with Co60 gamma radiation at five exposure rates ranging from 660 to 2.0 R/hr. The data show that a decrease in the exposure-rate (or protracting the exposure over longer time periods) results in an increase in th
Autor:
George F. Leong, Norbert P. Page, James F. Taylor, Edwin T. Still, William G. Wisecup, E. John Ainsworth
Publikováno v:
Radiation Research. 39:580
With 1 Mvp X-rays, the acute LD50/30 (midline air exposure) of adult female burros was determined to be 369 R; the acute LD50/60 was determined to be 344 R. The split-dose technique, which consists of conditioning animals with a sublethal exposure an
Publikováno v:
Radiation Research. 29:211
A modified split-dose technique was used to measure the accumulation of injury during protracted exposures of the domestic sheep to Cobalt-60 gamma radiation. An initial or conditioning exposure of 165 R was given at 0.5, 0.95, 1.85, and 3.94 R/hr, a
Publikováno v:
Radiation Research. 45:487
Beagles from our colony were exposed in plywood boxes to 14.6 MeV neutrons from Lawrence Radiation Laboratory's insulated core transformer. Hematologic response was followed in a small group and the ${\rm LD}_{50(30)}$ determined in 82 dogs. The ${\r
Publikováno v:
Radiation Research. 27:397
The acute effects of whole-body irradiation and the pattern of recovery from sublethal radiation injury can only be estimated for human beings from scattered and highly unusual exposure situations. These situations include the atomic bomb detonations
Publikováno v:
Radiation Research. 45:110
The ${\rm LD}_{50/60}$ and recovery pattern after a sublethal radiation exposure have been determined for the Angora goat, exposed to 1 MVp x-rays at 450 R/hour. The ${\rm LD}_{50/60}$ was 327 R (95% confidence interval: 292-378). The split-dose tech
Publikováno v:
Radiation Research. 46:301
The kinetics of recovery of sheep in terms of time-dependent changes in radiosensitivity (LD50) have been evaluated as a function of dose rate and size of exposure to 60Co gamma or 1 Mvp X-rays. Although there were certain quantitative differences in