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Progress Report - Studies on the Propagation of Gamma Rays in Air

Description: Initial rough measurements of the quality of the gamma radiation from Co-60 in air indicated agreement with the theoretical calculations of Spencer and Fano for an infinite water medium. Further experiments were performed, duplicating the conditions assumed in the calculations. Since the spectral region between 100 kev and 1 mev has already been examined by Hayward, it was decided to investigate in detail the region below 100 kev and above 1.0 mev. Total radiation dosage measurements were made … more
Date: June 30, 1953
Creator: Bernstein, W. & Weiss, M. M.
Partner: UNT Libraries Government Documents Department
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Cobalt-60 Bulk Grain Irradiator: Study Report

Description: Report issued by the Brookhaven National Laboratory discussing bulk grain irradiators. As stated in the abstract, "this report presents the results of a study to conceive, evaluate, review and estimate costs for a number of suitable designs for a Cobalt-60 Bulk Grain Irradiator; select a preferred type; and establish required criteria for future detail design and construction of the selected concept" (p. ii). This report includes tables, and illustrations.
Date: June 30, 1963
Creator: Brookhaven National Laboratory
Partner: UNT Libraries Government Documents Department
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High-Pressure Gamma Loop for Brookhaven National Laboratory

Description: Report issued by the Brookhaven National Laboratory discussing high-pressured gamma loops. As stated in the introduction, "this latest endeavor involved three test cells, a gamma irradiation pool and supporting equipment, as well as an enlarged high-pressure gamma loop facility" (p. 1). This report includes tables, and illustrations.
Date: June 1963
Creator: Brookhaven National Laboratory
Partner: UNT Libraries Government Documents Department
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A Bond-Cell Method for Complex Molecules and Metals

Description: This technical report introduces "some approximations into the basic quantum mechanical theory" so that the theory of the covalent bond and the molecular orbital method "can be combined into one which will yield quantitative rather than qualitative binding energies and cohesive energies and also distinct energy levels and band structure." This approach will provide a common method "suitable to both solid state physicists and physical chemists, for calculating the energy levels in metals and com… more
Date: June 19, 1962
Creator: Carlson, C. M.
Partner: UNT Libraries Government Documents Department
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The Biological Effects of heavy Cosmic Ray Particles

Description: Technical report investigates creating a microbeam of deuterons to simulate cosmic rays and the results of brain irradiation, irradiation of the eye, and irradiation of hair follicles of mice. The report's conclusion was that "astronauts exposed to heavy primary particles over a period of some weeks would be expected to develop gray hairs, but this is the only significant biological damage they would suffer."
Date: June 19, 1962
Creator: Curtis, Howard J. (Howard James), 1906-
Partner: UNT Libraries Government Documents Department
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An Experimental and Theoretical Study of the Subcritical BNL Reactor

Description: Technical report outlining the theoretical study of the sub-critical BNL (Brookhaven National Laboratory) reactor, and a comparison of reactor performance with the purpose of presenting the experimental results of the experimental methods. Presents experimental results and and a detailed discussion of the experimental methods along with theoretical analysis and evaluation of the results.
Date: June 15, 1950
Creator: Cwernick, J.; Kaplan, I.; Kunstadter, J.; Sailor, V. & Williams, C.
Partner: UNT Libraries Government Documents Department
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Radiation and Atomic Rearrangement in Alloys

Description: This report examines radiation damage in solids, looking particularly at calculations and experiments that can provide quantitative predictions of damage.
Date: June 19, 1962
Creator: Damask, A. C.
Partner: UNT Libraries Government Documents Department
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On the Structure of Sperm Whale Myoglobin. IV. Amino Acid Sequences of the Smaller Tryptic Peptides Containing Aromatic Residues

Description: This technical report is part four in a series on the structure of sperm whale myoglobin. This report examines the amino acid sequences of the smaller tryptic peptides containing aromatic residues in order to describe in detail the sequences for peptides, tripeptides, and hexapeptides.
Date: June 19, 1962
Creator: Edmundson, A. B. & Hirs, C. H. W., (Christophe Henri Werner), 1923-
Partner: UNT Libraries Government Documents Department
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The Standard Molar Free Energy of Formation of MgCl2, CeCl3, ThCl4, and UCl3 Obtained by Solid State EMF Techniques

Description: Technical report about a study in the use of galvanic cells using solid electrolytes to obtain thermodynamic data at high temperatures to study the free energy of formation of chlorides using Daniell cells where all components are solid. "The experimental techniques used are presented, including cell construction, preparation of anhydrous materials, and the handling of reactive metals and hydroscopic materials for galvanic cells." from the abstract. Results are presented for magnesium chlorid… more
Date: June 19, 1962
Creator: Egan, J. J.; McCoy, W. & Bracker, J.
Partner: UNT Libraries Government Documents Department
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The Role of Internal Conversion in the Study of Isomeric Transitions

Description: A short review of the field of internal conversions. Isomeric transitions teach us many details of nuclear structure. In these studies electromagnetic theory is considered as a "tool". It is a quite quantitative tool in the case of "internal conversion" - a phenomenon which has been widely studied for many years. Internal conversion takes place in competition with γ-ray emission: a fraction of the nuclei in excited states decay by γ-ray emission, the remaining fraction by transferring the energ… more
Date: June 24, 1954
Creator: Goldhaber, M.
Partner: UNT Libraries Government Documents Department
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Twin Channel Count Integrator (EH1-503)

Description: Report issued by the Brookhaven National Laboratory discussing a twin channel count integrator. As stated in the introduction, "an accurate and stable recording ratemeter, designed to present the data from two counters on one strip chart recorder, is described" (p. 1). This report includes tables, and illustrations.
Date: June 1956
Creator: Higinbotham, William A. & Tillinger, J.
Partner: UNT Libraries Government Documents Department
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Irradiation Induced Effects in Magnesium Oxide Catalysts

Description: Technical report that investigates the the correlation between changes in catalytic activity caused by high energy radiation and the changes in the physical and chemical structure of magnesium oxide catalysts. The investigation of magnesium oxide catalysts might help clarify a complex and poorly understood field.
Date: June 19, 1962
Creator: Hoigné, J. & Ballantine, D.
Partner: UNT Libraries Government Documents Department
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Extinction and Diffuse Neutron Intensity Measurements

Description: Technical report which reports a study of the effects of extinction upon diffuse x-ray measurements.
Date: June 19, 1962
Creator: Keating, D. T. & Walker, C. B.
Partner: UNT Libraries Government Documents Department
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Electron Microscopy of Fission Fragment Damage in Aluminum-Uranium Fuel Element

Description: Technical report covering an extensive investigation of the nature of fission fragment "damage" in various metals. During the investigation electron micrographs of fission fragment tracks in the BNL Graphite Reactor fuel element cores were made.
Date: June 19, 1962
Creator: Kelsch, J. J. & Kammerer, O. F.
Partner: UNT Libraries Government Documents Department
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Observation of the Li6 (n,[alpha]) H3 Reaction by Electron Microscopy of Li6F Films

Description: Technical report about the investigation of whether low kinetic energy nuclear fission fragment particles create tracks in thin films similar to the tracks created from total kinetic energy fragments in excess of 150 Mev. The research goal is to understand the mechanism of track formation.
Date: June 19, 1962
Creator: Kelsch, J. J.; Kammerer, O. F. & Goland, Allen N., 1930-
Partner: UNT Libraries Government Documents Department
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The Temperature Dependence of Birefringence in Irradiated Polyethylene

Description: Technical report on a study where the birefringence of irradiated polyethylene was observed as a function of temperature. The data is consistent with a mechanism in which crosslinking limits the growth and annealing of crystallites. Crosslinks formed in material which was oriented at the time the crosslinks were formed, results in an oriented gel. This effect explains the birefringence and the persistence of nucleation sites at high temperatures.
Date: June 19, 1962
Creator: Keneally, B.; Gard, J. & Adler, G.
Partner: UNT Libraries Government Documents Department
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The Fast Rise Pulser

Description: A circuit is described developed to fill the need for a pulser with a 15-20 volt amplitude into the 93 ohm line, stable, transistorized and low cost, fast 10 Nano second rise, and a variable repetition period from 0.5 sec. to 4 sec.
Date: June 26, 1962
Creator: Kiriokos, George
Partner: UNT Libraries Government Documents Department
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Annealing of Radiation Induced Defects in Fused Silica

Description: Technical report describes how glasses and crystals subjected to ionizing radiation develop absorption bands and become colored. The coloring of defects can be used to determine how nuclear reactor induced defects anneal out or disappear as an irradiated sample is heated.
Date: June 19, 1962
Creator: Levy, Paul Warren
Partner: UNT Libraries Government Documents Department
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Design Study for a 15-BeV Accelerator

Description: This report is the culmination of a year of progress and planning in the high-energy particle field. During this year the Brookhaven Cosmotron has been successfully completed and brought into operation for research at 2.3 Bev. Preliminary experimental results with the copious output of π-mesons are in process of publication. Multiple production of mesons has been observed, a few V-particles detected, and the interactions of π-mesons in hydrogen have been studied. Yet it already appears that hig… more
Date: June 30, 1953
Creator: Livingston, M., Stanley, Prof.; Ramsey, N. F., Prof.; Street, J. C., Prof.; Pound, R. V., Prof; Preston, W. M., Prof; Selove, W., Prof. et al.
Partner: UNT Libraries Government Documents Department
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Target Efficiency Measurements at the AGS

Description: Two methods for measuring target efficiencies are briefly discussed. The second method puts an upper bound on the efficiency and permits observation of instantaneous efficiency, thereby aiding location of losses. Measurements agree well with conventional radiochemical values.
Date: June 6, 1962
Creator: Maschke, A. W.
Partner: UNT Libraries Government Documents Department
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