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Preliminary Estimate of the Cost of Production of 10% Isotopic Purity Oxygen-17 by Chemical Exchange

Description: An order of magnitude estimate was made to determine a minimum cost for 10% pure oxygen-17 when produced by a chemical exchange process. the calculations were based on separations factors of 1.03, 1.01, and 1.003. the cost of product was found to vary from $23 per gram for the large factor to $165 per gram for the smaller.
Date: February 1, 1957
Creator: Klima, B. B.
Partner: UNT Libraries Government Documents Department
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Preliminary Hazards Summary Report For The Vallecitos Superheat Reactor

Description: This Preliminary Hazards Summary Report has been prepared for submission to the United States Atomic Energy Commission in compliance with Part 50 of the regulations governing the licensing of production or utilization facilities, pursuant to the Atomic Energy Act of 1954, as amended, and contains the general information required by 10 CFR 50.34.
Date: February 1, 1961
Creator: General Electric Company
Partner: UNT Libraries Government Documents Department
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Enthalpies and Heat Capacities of Solid and Molten Fluoride Mixtures

Description: The enthalpies and heat capacities of seventeen fluoride mixtures in the liquid state have been determined using Bunsen Ice Calorimeters and copper block calorimeters. The fluoride mixtures were composed of the fluorides of two or more of the following metals: lithium, sodium, potassium, beryllium, zirconium, and uranium. The enthalpies and heat capacities of most of these mixtures were studied in the solid state also. Estimates of the heat of fusion have been made. General empirical equations … more
Date: February 1, 1956
Creator: Powers, W. D. & Blalock, G. C.
Partner: UNT Libraries Government Documents Department
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Interim Report -- The Retention of Particles in Ducts Transporting Aerosol Streams

Description: Accurate sampling of particulate in gaseous effluents is required for auditing and control of radioactive wastes released to the environment at installations generating or processing radioactive materials. Over the years a variety of sampling probe configurations, sampling velocities, lengths and sizes of sample delivery lines have been used locally to obtain these samples. Efforts to properly evaluate the validity of samples in most sampling installations have been hampered by a lack of basic … more
Date: February 1, 1960
Creator: Postma, A. K. & Schwendiman, L. C.
Partner: UNT Libraries Government Documents Department
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The Use of Tetravalent Uranium and Hydrazine as Partitioning Agents in Solvent Extraction Process for Plutonium and Uranium

Description: In solvent extraction purification processes such as are used at Hanford, the fuel elements or "slugs" from the reactor containing uranium, plutonium, and fission products are dissolved in nitric acid, adjusted to the required feed composition, and pumped to the solvent extraction columns. Figure 1 in a schematic diagram of such a solvent extraction process. In the A column, the uranium and the plutonium are extracted into an organic phase while the bulk of the fission products remain in the aq… more
Date: February 1, 1959
Creator: Buckingham, J.S.; Colvin, C.A. & Goodall, C.A.
Partner: UNT Libraries Government Documents Department
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Heat Transfer in Radiant- Heat Spray Calcination

Description: The fixation of aqueous radioactive wastes in a stable solid media by means of calcination has been the subject of considerable research and development effort. Several methods of doing this on a continuous basis have been devised and a few have been demonstrated to be feasible for the handling of non-radioactive or low activity simulated wastes. Currently an investigation of calcination by means of radiant-heat spray drying is being carried on by the Chemical Research Operation of the Hanford … more
Date: February 1, 1959
Creator: Johnson, B.M., Jr.
Partner: UNT Libraries Government Documents Department
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The Microbeam as a Tool in Radiobiology

Description: In the analysis of the effect of ionizing radiation on living systems, the problem is complicated by the interaction of one part of the system with other parts. If an entire mouse is subjected to radiation, only a few of the most radiosensitive organs, the "weak links," react to the insult and essentially limit the size of the dose delivered since there is little to be learned from irradiating a dead mouse. Thus an insensitive organ like muscle will not respond at all to a total body dose. Like… more
Date: February 1, 1963
Creator: Curtis, Howard J.
Partner: UNT Libraries Government Documents Department
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Mitotic Indices of Human Bone Marrow Cells. Duration of Some Phases of Erythrocytic and Granulocytic Proliferation Computed From Mitotic Indices

Description: Data on the mitotic indices of human bone marrow cells were reported in the first paper of this series, and theoretical considerations on the applicability and limitations of the index in determining kinetic parameters were discussed. In the present paper an attempt is made to compute time parameters of normal bone marrow cell proliferation from the data presented in the first paper.
Date: February 1, 1963
Creator: Killmann, S. A.; Cronkite, E. P.; Fliedner, T. M. & Bond, V. P.
Partner: UNT Libraries Government Documents Department
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The Effects of 250-kv X-Ray on the Dog's Pancreas: Morphological and Functional Changes

Description: Previous investigations that the pancreas is a radioresistant organ. Ivy in 1924 noted the presence of a fibrotic atrophic pancreas in a dog which had received one erythema dose to the epigastrium. Fisher in 1923 reported that four to five erythema doses delivered in a single application caused complete disappearance of the irradiated pancreatic remnant in about two months. These dogs died because of uncontrolled diabetes. One dog that received four erythema doses (possibly 200 r) was sacrifice… more
Date: February 1, 1963
Creator: Archamefau, John; Griem, Melvin & Harper, Paul
Partner: UNT Libraries Government Documents Department
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Elimination of Phases the Life Cycle of Leukemic Cells From in Vivo Labeling in Human Beings With Tritiated Thymidine

Description: Our earlier in vitro studies have suggested that malignant tumors may not produce new cells more rapidly than normal cells are produced in the "steady state" equilibrium. Obviously tumors of all typed represent a diversion from "steady state" production with a net gain in mass of tissue. However, the increase in mass is not necessarily constant and may fluctuate in the natural history of the disorder. DNA labeling with tritiated thymidine had made it possible to characterize normal "steady stat… more
Date: February 1, 1963
Creator: Killmann, S. A.; Cronkite, E. P.; Robertson, J. S.; Fliedner, T. M. & Bond, V. P.
Partner: UNT Libraries Government Documents Department
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Radiation Effect on the RNA Metabolism of the Central Nervous System

Description: Numerous studies on the effects of radiation on the central nervous system used traditional pathomorphological changes as parameters of radiosensitivity, but pathogenesis and mechanisms of radiation injury to the nervous tissue are still little understood. Furthermore, the great discrepancy of dose requirement leading to physiological responses and on the other hand to pathomorphological changes in the central nervous system is not satisfactorily explained.
Date: February 1, 1963
Creator: Yamamoto, Y. L.; Feinendegen, L. E. & Bond, V. P.
Partner: UNT Libraries Government Documents Department
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Indirect Effect of X-Radiation on Bone Growth in Rats

Description: It has been known for many years that bone growth may be retarded by relatively large doses of therapeutic radiation. Similar doses of radiation have also shown retarded growth in animals. More recently, reports of studies of Japanese children exposed to the Atomic Bomb Detentions at Hiroshima and Nagasaki and Marshallese children exposed to radiation in the fallout accident of 1954 have indicated some impairment in their growth and development, possibly related to radiation exposure. Since the… more
Date: February 1, 1963
Creator: Conard, R. A.
Partner: UNT Libraries Government Documents Department
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Effects of Trichinella Spiralis Infection on Incorporation of Amino Acids into Serum and Hemoglobin

Description: Encysted Trichinella spiralis larvae incorporated carbon-14 from mice fed diets containing C14 -labeled glycerine and DL-alanine. In general, a higher level of C14 activity (C14 per gram of dry tissue) was found in muscle larvae than in muscle tissue. The presence of encysted Trichinella larvae in the muscles of 56-day and 180-day infected mice did not alter incorporation of C14 from these amino acids into infected muscle protein when compared with noninfected muscle. These experiments were ext… more
Date: February 1, 1963
Creator: Hankes, Lawrence V. & Stone, Richard D.
Partner: UNT Libraries Government Documents Department
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Lysogeny in Rhizobium Leguminosarum and R. Trifolii

Description: Seven lysogenic strains - three of Rhizobium Leguminosarum and four of R-trifolii - were identified among a total of 54 strains from these two species and R. phascoli. The R. leguminosarum strain may be multiply lysogenic; two of them also produce lethal agents resembling bacteriocins in their effects. Lysogeny was confirmed by standard criteria of UV-inducibility, self-immunity, and reproductive ability. Lysogenic conversion involving symbiotic characteristics was not observed. A minimum of s… more
Date: February 1, 1963
Creator: Schwinghamer, E. A. & Reinhardt, D. J.
Partner: UNT Libraries Government Documents Department
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Thermodynamics of Fused Salt Mixtures From EMF Measurements. The Systems NaCl-KCl, NaCl-MgCl2, and NaCl-CeCl3.

Description: The following cells were operated at 820°C: [equations not transcribed] where the over-all reaction in each cell is simply the transfer of NaCl from pure NaCl to the mixtures of the right hand compartment. The porcelain acts as a pure sodium ion conductor in these cells. The relative partial molar free energy of mixing for sodium chloride, FMNaCl, is given by [equation not transcribed] where E is the EMF of the cell. Results are given over the entire composition range in each system and compare… more
Date: February 1, 1963
Creator: Egan, James J. & Bracker, John
Partner: UNT Libraries Government Documents Department
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Tissue Distribution and Storage Forms of Vitamin B12 Injected and Orally Administered to the Dog

Description: Previous attempts by the present authors to compare the behavior of orally administered vitamin B12 with that of injected material have been inconclusive. Thus, 30 days after administration to normal humans, 0.19% of a tracer amount (0.5 μg) of injected radioactive vitamin B12 is excreted per day; and in an independent study, the eventual daily output was found to be 0.23% of a 3 μg dose. By contrast the total excretion rate of normal vitamin B12 from body stores appears to be only ≈0.03% per d… more
Date: February 1, 1963
Creator: Rosenblum, Charles; Reizenstein, Peter G.; Cronicite, Eugene P. & Meriwether, Henry T.
Partner: UNT Libraries Government Documents Department
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Abscopal Effects of Localized Irradiation by Accelerator Beams

Description: The aim of this series of experiments was to evaluate the existence of abscopal effects of irradiation. No attempt was made towards the elucidation of mechanisms. Very early in the history of radiological research it was noticed radiation produces both local and general effects involving the entire body. Gauss and Lembcke introduced the term "Roentgenkater" (radiation sickness). They ascribed these "General Effects" to the circulation of toxic substances released from cells that disintegrated f… more
Date: February 1, 1963
Creator: Jansen, C. R.; Bond, V. P.; Rai, K. R. & Lippincott, S. W.
Partner: UNT Libraries Government Documents Department
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The Fate of Transfused H3 Thymidine Labeled Bone Marrow Cells in Irradiated Recipients

Description: It has been established by chromosome marker studies, histochemical, immunological, and cytological methods that the hemopoietic tissues of animals exposed to lethal doses of whole-body irradiation can be repopulated by transfused autologous, homologous or heterologous bone marrow cells. However, the morphology of the cell responsible for the regeneration of hematopoietic activity in the various hemopoietic organs has not been identified. It has been shown that the bone marrow contains the cell… more
Date: February 1, 1963
Creator: Fliedner, T. M.; Thomas, E. D.; Meyer, L. M. & Cronkite, E. P.
Partner: UNT Libraries Government Documents Department
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The Mg-MgCl2 System — A Chronopotentiometric Study

Description: The mode of dissolution of magnesium in molten magnesium chloride contacted with Mg-Pb alloys was studied at 750°C using anodic chronopotentiometry. An inert tantalum anode was used to determine relative amounts of magnesium dissolved in its chloride as a function of magnesium activity in the alloy. According to the law of mass action a linear dependence of magnesium solubility on a Mg indicates Mg2Cl2 as the reaction product and a parabolic dependence indicates MgCl. It was found that the amou… more
Date: February 1, 1968
Creator: Van Norman, John D. & Egan, James J.
Partner: UNT Libraries Government Documents Department
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The Effects of Radiations of Different let on Early Responses in the Mammal

Description: This paper will first note briefly the place and status of radiobiotopical investigations with fast neutrons. The monoenergetic (fast) neutron technique employed at this laboratory will be then described and results of studies with various criteria-of-effect in the mouse will be reviewed. Finally, certain general patterns of response for these systems will be pointed out as functions of neutron energy.
Date: February 1, 1963
Creator: Bateman, J. L. & Bond, V. P.
Partner: UNT Libraries Government Documents Department
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Use of a Digital Computer in the Development of a Positron Scanning Procedure

Description: The problem to be discussed originates in our interest in the diagnosis and treatment of brain tumors. It has been established by others that some positron-emitting radioactive isotopes, in particular Arsenic-74 and Copper-64, can be causal to localize in brain tumors and thus to serve as agents for locating the tumors. Although other kinds of radioisotopes have also been used successfully in locating tumors, positron emitters have some especially attractive features. Their use is based on the … more
Date: February 1, 1963
Creator: Robertson, James S. & Niell, Arcadio M.
Partner: UNT Libraries Government Documents Department
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The Effects of Chronic Gamma Irradiation on the Growth of Kalanchoe cv. "Brilliant Star"

Description: Kalanchoe seedlings were exposed to 330 r/20 hrs/day from a Co60 source. Samples were harvested weekly. No new leaves were produced after initial exposure to irradiation. Mitosis in the apical meristem appears to have been suppressed. However, the axillary meristem and the cambium continue their activity. This results in a much broadened stem tip with enlarged cells, supported by a stout internode in which cell size has remained relatively normal but cell number has increased. After about 26 da… more
Date: February 1, 1963
Creator: Stein, O. L. & Sparrow, A. H.
Partner: UNT Libraries Government Documents Department
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Inelastic Interactions of 11.4 Bec/c π" Mesons in Hydrogen

Description: Production cross sections and angular distributions of Λ and K° particles produced by 11.4 Bev/c π" mesons in hydrogen have been measured. A systematic investigation was made of all two-body decays of unstable neutral particles. No events inconsistent with γ, Λ, or K° were found. Production cross sections, angular distributions and effective mass distributions of π mesons produced in 4-prong events were also measured. No evidence for dominance of any high mass multi-pion resonance was found. Bo… more
Date: February 1, 1963
Creator: Ferbel, T. & Taft, H.
Partner: UNT Libraries Government Documents Department
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Chronic Excess Salt Consumption as an Etiologic Factor in Human Hypertension

Description: Since 1940 it has been known that extra salt (i.e. sodium chloride) facilitated the development of experimental hypertension induced by various sterols; subsequently hypertension was induced by desoxycorticosterone acetate plus sodium chloride; then hypertension was produced by using hypertonic saline as the sole source of liquid; and finally, in 1953, Menesly and his associates reported that chronic ingestion of excess dietary salt alone would produce hypertension in rats. Furthermore, in conf… more
Date: February 1, 1963
Creator: Dahl, Lewis K.
Partner: UNT Libraries Government Documents Department
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