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Zircex Kinetics And Uranium Loss Study

Description: "A study was made of the effects of temperature, impurities in the hydrogen chloride, flow rates, and niobium content on both the reaction rates and insoluble uranium losses in the Zircex Process is presented."
Date: November 13, 1957
Creator: Carter, Jr, T. J. & Stone, R. A.
Partner: UNT Libraries Government Documents Department
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RBE of Monoenergetic Fast Neutrons: Cytogenetic Effects in Maize

Description: Investigations on the relative biological effectiveness (RBE) of densely ionizing radiations (with high LET, rate of linear energy transfer) are of importance in both fundamental and applied radiobiology. In the latter, they serve as a basis in setting permissible exposure levels for types of radiation about which little long range experience is available. Some of the best RBE studies have been done on chromosomal aberrations. The difficulty is determining RBE on the basis of chromosomal exchan… more
Date: November 13, 1963
Creator: Smith, H. H.; Bateman, J. L.; Quastler, H. & Rossi, H. H.
Partner: UNT Libraries Government Documents Department
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Reutilization of DNA-Thymine, and Conversion of RNA-Pyrimidines for DNA-Thymine, in Normal Rat Bone Marrow Studies with Tritiated Nucleosides

Description: If one injects into an animal H3-thymidine, 50% of it is incorporated into deoxyribonucleic acid (DNA), within approximately 30 to 45 minutes, while the rest is catabolized. A storage of H3-thymidine for later incorporation into DNA does not occur, on the basis of available evidence. Once incorporated, the label remains bound to DNA until cell death and no unequivocal evidence has as yet been presented to indicate metabolic renewal or intracellular turnover of the DNA molecule. The loss of labe… more
Date: November 13, 1963
Creator: Feinendegen, L. E.; Bond, V. P.; Cronkite, E. P. & Hughes, W. L.
Partner: UNT Libraries Government Documents Department
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Use of Neutron Irradiations in the Brookhaven Mutations Program

Description: In brief, these facilities consist of a 250 KvP X-ray generator; two areas of a research reactor, one a well thermalized unit of moderate capacity and a larger area with a mixed thermal and fast neutron distribution, all of which are used for brief, acute exposure. A 10 acre field, currently with almost 4000 curies of cobalt 60, serves to irradiate entire plants for either short or long periods of time. Recently, the flux density of the thermal column was increased by a factor of 5 over the ori… more
Date: November 13, 1963
Creator: Miksche, J. P. & Shapiro, S.
Partner: UNT Libraries Government Documents Department
open access

Effect of Choice of Electrical Conductor on Power Requirements of Low Temperature Magnets

Description: Introduction. As has been shown by Post, the total power required to produce a strong, steady-state magnetic field is strongly dependent upon the temperature at which the electrical conductor of the magnet operates. The power required for operation at very low temperature can, in some cases, be much less than that required for ambient temperature operation. The power required for low temperature operation depends on many system characteristics which include the metal chosen for the electrical… more
Date: November 13, 1959
Creator: Mallon, Richard G.
Partner: UNT Libraries Government Documents Department
open access

General Reactor-Engineering Research Quarterly Progress Report [for] Period Ending August 31, 1950

Description: Technical report describing results on work which cannot be ascribed to one reactor program. Outlines the results of miscellaneous corrosion testing, the development of new shielding materials, the testing of irradiated plastics, and general heat transfer investigation. [From Preface]
Date: November 13, 1950
Creator: Lyon, R. N.
Partner: UNT Libraries Government Documents Department
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Contribution of Neutron Beta Decay to Radiation Belt Pumping from High Altitude Nuclear Explosion

Description: In 1962, several satellites were lost following high altitude nuclear tests by the United States and the Soviet Union. These satellite failures were caused by energetic electrons injected into the earth's radiation belts from the beta decay of bomb produced fission fragments and neutrons. It has been 40 years since the last high altitude nuclear test; there are now many more satellites in orbit, and it is important to understand their vulnerability to radiation belt pumping from nuclear explosi… more
Date: November 13, 2002
Creator: Marrs, R
Partner: UNT Libraries Government Documents Department
open access

Radionuclide Mobility at the Nevada Test Site

Description: Underground nuclear tests conducted at the Nevada Test Site (NTS) are characterized by abundant fission product and actinide source terms. Included are {sup 99}Tc and other soluble radionuclides ({sup 3}H, {sup 14}C, {sup 36}Cl, {sup 85}Kr, and {sup 129}I), which are presumably mobile in groundwater and potentially toxic to down-gradient receptors. NTS provides the Office of Civilian Radioactive Waste Management (OCRWM) with an analog of the release of these radionuclides from a nuclear waste r… more
Date: November 13, 2003
Creator: Hu, Qinhong (Max); Smith, David K.; Rose, Timothy; Glascoe, Lee; Steefel, Carl & Zavarin, Mavrik
Partner: UNT Libraries Government Documents Department
open access

Lame Duck Sessions of Congress Following a Majority-Changing Election: In Brief

Description: This report describes "lame duck" sessions of Congress, which take place whenever one Congress meets after its successor is elected but before the term of the current Congress ends. It specifically provides additional information on the 1954, 1994, and 2010 lame duck sessions.
Date: November 13, 2018
Creator: Hudiburg, Jane A.
Partner: UNT Libraries Government Documents Department
open access

Defense Primer: RDT&E

Description: This report describes the appropriations structure and funding levels for the U.S. Department of Defense's (DOD's) research, development, test, and evaluation (RDT&E). The DOD relies on scientific and technical research funded by the department and performed by industry, universities, federal laboratories, and others; the DOD also relies on technology developed by the private sector for commercial markets.
Date: November 13, 2018
Creator: Sargent, John F., Jr.
Partner: UNT Libraries Government Documents Department
open access

Separation of Climate Signals

Description: Understanding changes in global climate is a challenging scientific problem. Simulated and observed data include signals from many sources, and untangling their respective effects is difficult. In order to make meaningful comparisons between different models, and to understand human effects on global climate, we need to isolate the effects of different sources. Recent eruptions of the El Chichon and Mt. Pinatubo volcanoes coincided with large El Nino and Southern Oscillation (ENSO) events, whic… more
Date: November 13, 2002
Creator: Kamath, C & Fodor, I
Partner: UNT Libraries Government Documents Department
open access

Results of experimental tests simulating supply pressure decrease in a K process tube

Description: Simultaneous reduction of coolant to several or all reactor tubes raises concern not only for the adequacy of protection in the individual process tube but also the reactor as a whole. In event of such flow reduction, the heat generation does not decrease until at least 1.4 seconds have elapsed following the accident. Thus, the water temperature from each tube will rise, and result in an increase in the bulk water temperature. If the increase in bulk water temperature is such that saturation te… more
Date: November 13, 1957
Creator: Toyoda, K. G. & Calkin, J. F.
Partner: UNT Libraries Government Documents Department
open access

Tank 241-AX-101 grab samples 1AX-97-1 through 1AX-97-3 analytical results for the final report

Description: This document is the final report for tank 241-AX-101 grab samples. Four grab samples were collected from riser 5B on July 29, 1997. Analyses were performed on samples 1AX-97-1, 1AX-97-2 and 1AX-97-3 in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Rev. 1: Fowler, 1995; Rev. 2: Mulkey and Miller, 1997). The analytical results are presented in Table 1. No notification limits were exceeded… more
Date: November 13, 1997
Creator: Esch, R. A.
Partner: UNT Libraries Government Documents Department
open access

UO{sub 3} Plant cold shakedown run plan: No. C-1

Description: This report presents the cold shakedown run for the UO{sub 3} plan. One complete batch conversion will be made in each of the eighteen Calcining Pots using unirradiated uranium food solution. The objectives of this series of conversions are as follows. A mechanical test of the conversion units; a shakedown of the unloading, pulverizing and material handling equipment; a functional test of the Nitro Acid Absorber system operating at approximately 5 to 20% of its design capacity; the determinatio… more
Date: November 13, 1951
Creator: Raab, G. J. & Oberg, G. C.
Partner: UNT Libraries Government Documents Department
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E-N super fuel elements

Description: The current E-N demonstration program began during mid-November 1962 in the AlSi Shop. Man meetings and conferences were held prior to this time to determine various methods by which the ultimate quality of the uranium portion of an E-N load could be enhanced at the expense of the material yield, if necessary. As a result of these meetings, it was decided that a superior grade fuel element could be manufactured by raising or lowering, as the cause may be, certain limitations that were currently… more
Date: November 13, 1963
Creator: Wick, J. J.
Partner: UNT Libraries Government Documents Department
open access

Estimating the dose from atmospheric releases of HT

Description: Measurements of uptake of tritium by humans and laboratory animals following exposure to tritiated hydrogen gas, HT, suggest that the radiotoxicity of HT is four orders of magnitude less than that of tritiated water, HTO. However, this analysis does not take into account the conversion of HT into HTO following release into the environment. Experimental releases of HT have demonstrated that HT release to the environment is converted to HTO by soil microorganisms. In this report two methods are u… more
Date: November 13, 1990
Creator: Murphy, C. E. Jr.
Partner: UNT Libraries Government Documents Department
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