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INHALATION TOXICITY OF ZIRCONIUM COMPOUNDS. I. SHORT-TERM STUDIES

Description: A total of 270 animals of 5 species was exposed by inhalation to compounds of zirconium for 6 hours per day, 5 days per week. One group of animals was exposed to ZrO{sub 2} at an atmospheric concentration of 75 mg. Zr/m{sup 3} for 30 days; another, to 11 mg. Zr/m{sup 3} for 60 days. A third group was exposed to a mist of ZrCl{sub 4} at a level of 6 mg. Zr/m{sup 3} for 60 days. Zirconium oxide produced no significant changes in mortality, growth rate, blood nonprotein nitrogen or fibrinogen, uri… more
Date: July 31, 1956
Creator: Spiegl, C. J.; Calkins, M. C.; DeVoldre, J. J.; Scott, J. K.; Steadman, L. T. & Stokinger, H. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiological Physics Division Semiannual Report, January-June 1961

Description: Twenty papers are presented on various projects pursued in the Radiologmcal Physics Division. The topmcs of the papers include radioactivities of bone and air, cesium137 content in human subjects, liquid scintillators, fluid flow, and air and soil temperature cycles. Separate abstracts were prepared for 16 of the papers. (D.L.C.)
Date: September 1, 1961
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DISPERSION OF SOLUBLE RADIOACTIVE MATERIAL IN WATER

Description: Theories of diffusion processes in water are discussed and the dispersion of radioactivity is calculated from an interpretation of the molecular diffusion equation with modifications which tend to fit the equation to from fission products in solution are made for a number of situations of interest. Parametric solutions are obtained and plotted on graphs which may be used to obtain water concentrations and thence dose levels. (auth)
Date: March 20, 1958
Creator: Dunning, F.S. & LeDoux, J.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of Irradiation on the Intestinal Cell Population

Description: The radiation syndrome that kills mice in 3.5 days was found to be mainly due to irradiation of the small intestine. Radiation injuries were defined by anatomical fractionation following irradiation first of the entire body region, then of smaller areas, and finally of surgically exposed individual organs. Irradiation with 1200 rad or more of any region that includes the entire small intestine resulted in death at precisely the same time as irradiation of the whole body. Irradiation of any majo… more
Date: January 1, 1963
Creator: Quastler, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Human Radiation Injury--a Correlation of Leukocyte Depression With Mortality in the Japanese Exposed to the Atomic Bombs

Description: Data collected by the Atomic Bomb Casualty Commission and the Japanese data of 1945 were reevaluated to see whether the leukocyte count at various time intervals reliably prognosticates death survival. There is a good correlation between death and depression of the leukocyte count taken during the third to fifth week after exposure. The correlation is perhaps best for counts taken during the third week. Leukocyte counts less than 3000 are not so hazardous in the fourth and fifth week as in the … more
Date: January 1, 1962
Creator: Jacobs, G. J.; Lynch, F. X.; Cronkite, E. P. & Bond, V. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE EFFECT OF ENVIRONMENTAL TEMPERATURES ON THE RETENTION OF CESIUM$sup 137$ BY MICE

Description: Three groups of 12 mice each were maintained at environmental temperatures of 34, 22, and 5 deg C for a period of about 7 weeks after an intraperitoneal injection of Cs/sup 137/. Periodic assay of the activity in the whole body and excreta showed that as environmental temperature decreases the excretion of Cs/sup 137/ increases, probably as a result of the increased metabolic rates associated with low temperatures. (auth)
Date: January 1, 1962
Creator: Furchner, J.E. & Richmond, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of Thorium in Rock Samples by Gamma Spectrometry

Description: An investigation was made of the feasibility of measuring thorium in rock samples by use of scintillation spectrometry facilities available in the ORNL Analytical Chemistry Division. Results of measurement of eleven samples indicate that the method is usable and that agreement with chemical analysis is reasonable. (auth)
Date: June 1, 1960
Creator: Reynolds, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE DEPLETION OF BURNABLE POISON IN ENDURANCE CALCULATIONS

Description: Methods of relating the bunnable poison concentration in a reactor to the fuel concentration during the life of the core are presented. These methcds correspond to the following ways of using bunnable poison: (1) in discrete lumps, (2) in a homogeneous rnixture with the fuel, and (3) a combination of these. Nuclear data relevant to the U/sup 235/-B/sup 10/ system are presented. (auth)
Date: March 1, 1960
Creator: Dahlberg, R.C. & Judge, F.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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