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Improved Calibration Facility

Description: Aid in redesign of the calibration facility in order to: 1. Reduce the rate of exposure for calibration personnel below 1 mr/hr; 2. Reduce the rate of exposure outside of the 3745 Building; 3. Reduce the risk of breaking radium sources; 4. Improve the efficiency of calibration procedures by: a. Allowing calibration to be done faster; b. Providing several calibration ranges which can operate simultaneously in the present space allowed; c. Allowing instrument survey work to proceed while calibrat… more
Date: August 22, 1995
Creator: Roesch, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Platelet-Endothelial Interactions as Studied by the Electron Microscope

Description: Platelet adhesion to the vessel wall and primary thrombus formation was examined by electron microscopy in the anterior pituitary gland of rats given local x irradiation with 8000 r, 24 hours prior to sacrifice. On repeated sectioning, most platelet aggregates or primary mural thrombi showed at least one area where the thrombocytes were attached to the denuded basement membrane. The implications of this finding and the possible mechanisms involved in platelet-endothelial adhesion are discussed.
Date: 1962
Creator: Cottier, H. & Cronkite, E. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Biological Hazards from Ruthenium Particulates: I. Studies of Percutaneous Absorption, Gastrointestinal Absorption, and Gastrointestinal Holdup

Description: Studies are described of the percutaneous absorption and gastrointestinal absorption in the rat of ruthenium administered in the form of "insoluble particulates." Results are also reported on the gastrointestinal holdup of these particulates.
Date: March 1, 1956
Creator: Thompson, R. C.; Hollis, O. L. & Oakley, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effects of Chronic Gamma Irradiation of the Apical Meristem and Bud Formation of Taxus Media

Description: Four-year-old plants of Taxus media cv. Hatfieldii were exposed to chronic gamma radiation from Co⁶⁰ at daily dose rates of 2.5, 3.75, 7.5, 15, and 30 r per 20-hour day. A dose response curve shows that dose rates as low as 3.75 r per day will reduce significantly the frequency of bud formation. At 12.5 r per day bud formation was reduced to 0.5% of the controls. Histological examination reveals that complete disorganization of the shoot apex occurs after an accumulation of 187.5 r at this low … more
Date: 1962
Creator: Miksche, J. P.; Sparrow, A. H. & Rogers, Anne F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Inhomogeneity of Dose Distribution in Animals Subjected to Whole Body Irradiation with 250 Kv X-Rays

Description: Even though bi-lateral or more complicated exposure procedures are of considerable importance in "total-body" exposure of large animals or man, these measures may not result in even approximately the same dose to different tissues. Because of body contour, depth-dose patterns determined in a rice-and-wax phantom contoured to the shape of a dog were appreciably different from the calculated values based on published standard depth-dose tables (400 cm² portal: other factors being approximately eq… more
Date: 1962
Creator: Malsky, Stanley J.; Amato, Charles G.; Bond, Victor P.; Robertson, James S. & Roswit, Bernard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Stability of Purex Solvent to Radiation and Chemical Attack

Description: The effects of variables on the rate of Purex solvent deterioration were investigated with the emphasis on those deterioration products which cannot be removed by carbonate washing. The deterioration rate was found to be directly proportional to the acid and nitrate ion concentrations, and proportional to the square root of the concentration of nitrite ion. Other observations on the effects of temperature, relative merits of brand name solvents, and the effects of radiation are included. A meth… more
Date: May 24, 1955
Creator: Swanson, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

INDOS: conversational computer codes to implement ICRP-10-10A models for estimation of internal radiation dose to man

Description: INDOS1, INDOS2, and INDOS3 (the INDOS codes) are conversational FORTRAN IV programs, implemented for use in time-sharing mode on the ORNL PDP-10 System. These codes use ICRP10-10A models to estimate the radiation dose to an organ of the body of Reference Man resulting from the ingestion or inhalation of any one of various radionuclides. Two patterns of intake are simulated: intakes at discrete times and continuous intake at a constant rate. The IND0S codes provide tabular output of dose rate an… more
Date: March 1, 1974
Creator: Killough, G. G. & Rohwer, P. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dose refinement: ARAC's role

Description: The Atmospheric Release Advisory Capability (ARAC), located at the Lawrence Livermore National Laboratory, since the late 1970�s has been involved in assessing consequences from nuclear and other hazardous material releases into the atmosphere. ARAC�s primary role has been emergency response. However, after the emergency phase, there is still a significant role for dispersion modeling. This work usually involves refining the source term and, hence, the dose to the populations affected as additi… more
Date: June 1, 1998
Creator: Baskett, R L; Ellis, J S & Sullivan, T J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Protein Synthesis in the Irradiated Intestine of the Mouse

Description: Protein synthesis in microorganisms is markedly affected only by 100,000 rad. (1) In the mammal, too, protein synthesis is generally n lethal doses. (2) However, synthesis of nuclear proteins was found (3) to be inhibited in the thymus 3 hours after irradiation with 1000 r, and incorporation of methionine into non-dividing nuclei of the tracheal epithelium was found depressed 4 hours after irradiation (4). It will be reported in this paper that autoradiographic studies of leucine incorporation … more
Date: 1962
Creator: Lipkin, Martin; Quastler, Henry & Muggia, Frank
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Evaluation of Air Samples Containing Thorium and Daughter Products

Description: Equations for the quantity of thorium daughters on an air sampler after various times of collection and decay are derived and evaluated. The most limiting assumption is the constant concentration over the sampling period. Applications of these equations to measurement of decay curves, alpha energy analysis and the simultaneous solution involving measurements at the three decay times are discussed.
Date: March 14, 1955
Creator: Healy, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EXREM III computer code for estimating external radiation doses to populations from environmental releases

Description: EXREM III is a computer code to estimate the dose equivalent rate and the total dose equivalent from beta, positron, electron, and gamma radintion resulting from submersion in contaminated water, submersion in contaminated air, and exposure to a contaminated surface. There can be more than one environmental release, and exposure can begin at any time after the first release. EXREM III considers contributions from environmental releases and from nuclide decay chains. For a particular problem the… more
Date: December 1, 1973
Creator: Trubey, D. K. & Kaye, S. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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