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Analysis of HRT Behavior

Description: This report, published for distribution by the Oak Ridge National Laboratory, outlines the methods being used in attempts to establish a mechanism which will account for the fluctuations observed in the power trace of the HRT.
Date: March 13, 1961
Creator: Kasten, Paul R. & Tobias, Melvin L.
Partner: UNT Libraries Government Documents Department
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Slurry Mockup Run SM-10

Description: Run SM-10, an experiment to demonstrate the feasibility of pumping thoria slurries through the complex apparatus required in a slurry core or blanket for a thermal breeder reactor, successfully showed the operability of such equipment, which included a high- and a low-pressure system.
Date: March 13, 1961
Creator: Harley, P.H. & Parsly, L.F.
Partner: UNT Libraries Government Documents Department
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Apparent Observations Ionic Sound Waves in an Arc Plasma

Description: Oscillations have been observed in a magnetically supported cylindrical rod of plasma. This rod of plasma can be the discharge occurring in the defining aperture of a Mode II, pressure gradient arc. Similar oscillations can also occur in the column of a Mode I arc. These oscillations appear to be the mechanism that drives the Mode II blowup phenomena.
Date: February 13, 1961
Creator: Alexeff, I. & Neidigh, R. V.
Partner: UNT Libraries Government Documents Department
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Processing of Beryllium Oxide Fuels

Description: Preliminary results from experiments on the dissolution of beryllium metal and sintered UO2-BeO fuel pellets are reported. In all cases the pellets were fired in hydrogen at 1650-1800°C. Uranium, from UO2-BeO pellets containing more than 60% UO2, is readily leached with boiling 6-13 M HNO3 in about 6 hr. The BeO in these pellets dissolves only slowly in nitric acid; however, in 8 M HNO3-0.2M NaF, it dissolves at about the same rate as the UO2. Sintered pellets containing less than 10% UO2 do no… more
Date: February 13, 1961
Creator: Warren, K. S. & Perris, L. M.
Partner: UNT Libraries Government Documents Department
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Bremsstrahlung Absorption Measurements from Sr^90 TiO3

Description: The absorption in lead of Bremsstrahlung X radiation from a Sr^90 TiO3 pellet in the proximity of Hastelloy "C" was measured. The tenth value layer of the more energetic components of the X-ray continuum was determined to be 1.60 inches.
Date: January 13, 1961
Creator: Butler, T. A. & Pierce, E. E.
Partner: UNT Libraries Government Documents Department
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Homogeneous Molten Salt Reactors

Description: Multigroup one-dimensional calculations were done recently to obtain estimates of critical masses, power density distributions and fissioning spectra for some homogeneous molten salt reactors having outer reflectors and central "islands," placed inside the currently proposed MSRE vessel. For a 5-inch-thick outer reflector and 1-ft-diamter island, both beryllium, the calculated critical mass is 108 kg; 40 percent of the fissions occur at thermal, and the maximum power density of 3.9 times the co… more
Date: December 13, 1960
Creator: Nestor, C. W., Jr
Partner: UNT Libraries Government Documents Department
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EXPIRE - A Reactivity Lifetime Calculation

Description: EXPIRE is a calculation which predicts the reactivity-lifetime, instantaneous and integrated effective multiplication constants and instantaneous and integrated effective multiplication constants and instantaneous conversion ratio for heterogeneous reactors. The concentration of all the isotopes of interest from Th232 to Am243 are calculated as a function of time using the average reactor power density and a uniform flux distribution. The equations have been programmed for the IBM-704 computer … more
Date: October 13, 1960
Creator: Jaye, S.
Partner: UNT Libraries Government Documents Department
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Decontamination of EGCR Charge and Service Machines

Description: Methods for the noncorrosive removal of volatile fission products and UO2 dust from carbon steel and stainless steel have been developed. Procedures for applying these methods to the decontamination of the EGCR charge and service machines are described.
Date: October 13, 1960
Creator: Meservey, A. B.; Chilton, J. M. & Ferguson, D. E.
Partner: UNT Libraries Government Documents Department
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Determination of Free Acid in Highly Radioactive Solutions by Remotely Controlled Conductometric Titration

Description: A conductometric titration method described by Goldstein was adapted for use in a remote analytical facility. The results obtained by mean of experiments made prior to this adaptation indicated that methanol is the most satisfactory medium in which to determine excess sulfuric acid in uranyl sulfate solutions that stimulate Homogeneous Reactor type fuel. When methanol is used, the complexation of hydrolyzable ions with sodium fluoride, as described by Pepkowitz, Sabol, and Dustin, is not requir… more
Date: October 13, 1960
Creator: Corcoran*, R. E.; Zittel, H. E.; Dinsmore, S. R. & Koskela, U.
Partner: UNT Libraries Government Documents Department
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Thermal Characteristics of Fluid Flow in Pipes

Description: An investigation is made to determine the adequacy of presently used analog circuits in solving dynamic fluid flow heat transfer equations. A mathematical analysis is made of dynamic heat transfer in pipes with zero losses, with losses proportional to pip temperature, and with heat inputs. The results of this analysis are compared with analog results by means of generalized temperature versus time graphs. The analog circuit is found to be adequate for most conditions, but sometimes requires mod… more
Date: September 13, 1960
Creator: Hinton, D. B.
Partner: UNT Libraries Government Documents Department
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Maritime Loop Irrradiation Program - Savannah I Fuel Irradiation: Progress Report First and Second Quarters, July, 1960-January, 1961

Description: The General Electric Company is proceeding with an irradiation program to proof test a representative array of Savannah I fuel rods. Irradiation of a test assembly containing Savannah I fuel rods has begun and it is proposed that the results of this irradiation will permit an advance evaluation of the fuel performance and fuel burnup in the Savannah I reactor. This report covers the first two quarters of the reporting period. All aspects of the subject program have been consolidated and applica… more
Date: February 13, 1961
Creator: Marburger, I. L.
Partner: UNT Libraries Government Documents Department
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Status Report on the Hanford Developed Tester for the Coextruded Fuel Elements

Description: In October 1959, a combination testing station developed at HAPO was reported to the Sheath committee. This testing station consisted of electronic instrumentation and mechanical scanning equipment to check coextruded fuel elements (rod and tube) for clad thickness, clad integrity, bond, and core integrity. The clad tests are performed by eddy current methods and the other are ultrasonic.
Date: April 13, 1960
Creator: Lambert, T. G.
Partner: UNT Libraries Government Documents Department
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Summary Report - Pump and Agitator Development 1959

Description: A part of the development activities of the Process Equipment Development Group, Chemical Development, HLO through the year 1959 has consisted of test evaluation of some of the never products of manufacturers, design and refinement of novel units to do certain specialized jobs and development of improved components for existing plant equipment. Modification of present chemical processing methods and investigation of new basic procedures have made it necessary to utilize different and "exotic" m… more
Date: January 13, 1960
Creator: Dunn, J.
Partner: UNT Libraries Government Documents Department
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Decontamination of the Irradiated Rupture Prototype with Peroxide-Carbonate and Apace

Description: Considerable work has been done on decontamination procedures for both corrosion products and fission products. Testing of promising procedures under typical rupture conditions is an important phase of this work. The Irradiated Rupture Prototype (IRP) has been used since August in this evaluation work. This document is one of a series reporting these data.
Date: January 13, 1960
Creator: Neibaur, G. E. & Weed, R. D.
Partner: UNT Libraries Government Documents Department
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Two Lectures on the Magnetic Scattering of Neutrons

Description: In these lectures we will discuss some examples of information about magnetic properties of solids which can be obtained by neutron scattering. We consider a scattering process in which a neutron with wave vector k and spin σ is incident upon a solid in state q>. (Here q stands for all of the quantum numbers which describe the state of the solid, such as spin and orbital electronic states, phonon numbers, etc.) After interacting with the solid, the neutron goes off with wave-vector k' and spin … more
Date: January 13, 1964
Creator: Blume, M.
Partner: UNT Libraries Government Documents Department
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Dose-survival Curves for HeLa Cell Cultures Using Thermal Neutrons and the B10 (n,α)Li7 Reaction

Description: The biological evaluation of the thermal neutron capture reaction of boron-10, B10 (n,α)Li7 + 2.786 MeV, has previously been studied, using different particles from the boron-10 thermal neutron capture reaction compared with 250 kvp x-rays has been reported as 1.05 for spleen-thymic weight reduction (1), as 1.5 to 2.0 for skin lesions in pigs (2), and 1.87 for skin lesions of the rabbit's ear (3). The significance of such a calculation is felt to be unreliable for the boron-10 reaction in anima… more
Date: January 13, 1964
Creator: Archambeau, J. O.; Drew, R. M. & Robertson, J. S.
Partner: UNT Libraries Government Documents Department
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Biological Effects of Thermal Neutrons and the B10 (n,c) Li7 Reaction

Description: Boron-10 has a high thermal neutron capture cross section (3880 barns). Following neutron capture, the subsequent nuclear disintegration produces an alpha particle and a lithium-7 nucleus with the release of an average of 2.34 MeV for the particle irradiation, and in 93% of the reactions there is also the emission of an 0.48 MeV gamma ray: [equation not transcribed]. The kinetic energy is divided between the lithium-7 nucleus and the alpha particle giving the equal and opposite momentums with a… more
Date: January 13, 1964
Creator: Archambeau, J. O.; Alcober, V; Calvo, W. & Brenneis, H.
Partner: UNT Libraries Government Documents Department
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The Use of Activated Charcoal Iodine Monitors During and Following a Release of Fission Product Iodines

Description: The present core of the Brookhaven Graphite Reactor consists of some 4900 highly enriched uranium fuel loaded in 615 horizontal fuel channels passing through a 25 foot cube of graphite moderator and reflector. The core is divided into two halves (north and south) by an 8 cm. wide vertical gap in the center of the graphite. The cooling air enters the reactor through inlet filters, at the rate of 270,000 CFM, passes into the central gap and flows bi-directionally through the north and south halve… more
Date: January 13, 1964
Creator: Foelix, Charles F. & Gemmell, L.
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
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Energy Response And Physical Properties Of NTA* Personnel Neutron Dosimeter Nuclear Track Film

Description: This paper reports the chemical and physical properties of the NTA film packet. It correlates with these properties the response of this packet to neutrons of various energies. In this correlation the concept of the track unit is introduced as a basic unit for reporting film-packet response.
Date: January 13, 1961
Creator: Lehman, Richard L.
Partner: UNT Libraries Government Documents Department
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Stratospheric Monitoring Program

Description: "Design work was completed and construction initiated on a prototype field altimeter based on the gas density dependence of Townsend discharge current in an electrical discharge. The design of an ion tracer air velocity meter for laboratory applications, and construction of three units were successfully completed. Theoretical and experimental support is presented, showing the applicability of the ion tracer system to the accurate measurement of linear gas velocity. The operating range of the la… more
Date: January 13, 1963
Creator: Cravitt, S.; Lilienfeld, P. & Foldes, A.
Partner: UNT Libraries Government Documents Department
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Strontium an Calcium Metabolism in Man, Final Report

Description: "During the first two years of this program the investigation centered around the distribution of strontium and calcium in tissues of persons who came to autopsy who had received a single tracer dose of Sr85 and Ca45. I then seemed desirable to attack some of the more dynamic aspects of strontium and calcium metabolism."
Date: July 13, 1960
Creator: Schulert, Arthur R.
Partner: UNT Libraries Government Documents Department
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