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Process Monitor, Mark 10, Model 20

Description: Report describing a nuclear process monitor used with a Geiger-Mueller tube to monitor the intensity of gamma radiation. A written description and technical drawing of the instrument is included.
Date: August 17, 1946
Creator: Jesse, William P.
Partner: UNT Libraries Government Documents Department
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Recommendations for Leveraging Cloud Computing Resources for Federally Funded Artificial Intelligence Research and Development

Description: This report identifies four key recommendations for how the federal government can better enable the use of cloud computing resources for federally funded AI research and development. These recommendations were proposed by the Select Committee on Artificial Intelligence.
Date: November 17, 2020
Creator: Alterovitz, Gil; Biswas, Rupak; Brennan, Patricia F.; Gianchandani, Erwin; Parker, Lynne; Ramaswamy, Venkatachalam et al.
Partner: UNT Libraries Government Documents Department
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Development Testing And Performance Evaluation Of Liquid Metal And Molten Salt Heat Exchangers

Description: This memo contains two companion papers presented at the 1959 winter meeting of the American Nuclear Society in Washington, D.C. The papers cover work performed on development testing and performance evaluation of liquid metal and molten salt heat exchangers in support of the Aircraft Nuclear Propulsion program at the Oak Ridge National Laboratory.
Date: March 17, 1960
Creator: MacPherson, R. E.; Yarosh, Marvin M.; Amos, J. C. & Savage, H. Wesley
Partner: UNT Libraries Government Documents Department
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Contamination of Shipping Cask and Storage Canal Water By Fuels Irradiated In Pressurized Water Reactors - A Review Of Pertinent Subjects

Description: The subjects of fuel element failures, rates of release and re-deposition of radioactive materials from ruptured and intact fuel elements in pressurized water reactors, corrosion rates of fuels in canal water and in contact with pressurized water, activity in storage canal water, fuel meltdown studies, and decontamination are reviewed and evaluated in relation to the shipment and storage of irradiated fuel elements.
Date: March 17, 1960
Creator: King, L. J.
Partner: UNT Libraries Government Documents Department
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Some Miscellaneous Maintenance Tools Used to Manipulate Loose Objects in the HRT Core

Description: This memorandum presents a description of several miscellaneous HRT core maintenance tools. Function, design and operation are described for screen pickup and transfer tools, screen alignment tools, screen hanger tools, grapples and clamp hooks, grip-and-flex tools, and screen edge sample cutter.
Date: November 17, 1959
Creator: Holz, P. P. (Peter P.)
Partner: UNT Libraries Government Documents Department
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Liquid-Liquid Immiscibility Above 300' C In The System UO3-SO3-N2O5-H2O

Description: Newly developed fused-salt-bath apparatus currently in use for the observation of liquid-liquid immiscibility in solutions sealed in silica tubes is described. Immiscibility temperatures are reported for 0.04, 0.08 and 0.16 molal UO2++ solutions in the system UO3-SO3-N2O5-H2O.
Date: November 17, 1959
Creator: Barton, C. J.; Hebert, G. M. & Marshall, W. L.
Partner: UNT Libraries Government Documents Department
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Solubility of Oxygen in Aqueous Uranyl Sulfate Solutions at Elevated Temperatures and Pressures

Description: Plots of oxygen solubility data are presented. The data are mainly those of Stephen et al, and the plots involve interpolation and extrapolation of those data to cover a temperature range of 210 o 330' C, an oxygen pressure range of 0-2000 psi, and a uranyl sulfate concentration range of 0-300 g U/1.
Date: September 17, 1959
Creator: Davis, R. J.
Partner: UNT Libraries Government Documents Department
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Methods for Applying Transmission and n-vs-E Corrections in the Determination of n2200 by the Macklin-deSaussure Experiment

Description: A careful determination of n2200 from results of the Macklin-deSaussure manganese bath experiment involves corrections for (1) the weak but non-zero transmission of sub-cadmium neutrons through the uranium or plutonium foils, and (2) the small variation of n with energy in the sub-cadmium region. This report presents the derivation of a single general expression for applying both these corrections, and then describes two IBM 704 codes (MTC and GTC) which were written especially to facilitate th… more
Date: August 17, 1959
Creator: Halbert, Edith C.; Maskewitz, Betty F. & Wynn, R. L.
Partner: UNT Libraries Government Documents Department
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Measurement of the "Active Deposit" of Thoron

Description: A description is given of the properties of the nuclides included in the "active deposit" of thoron. A method is presented for obtaining a quantitative measurement of the activity of the transient-equilibrium mixture.
Date: August 17, 1959
Creator: Reynolds, S. A.
Partner: UNT Libraries Government Documents Department
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Determination of Suitable Insulation for a 1-5/16" Helium Filled Annulus in the ORR Helium In-Pile Loop, Design No. 4

Description: Heat loss tests were conducted with six insulation configurations for application in the riser regenerator and auxiliary regenerator sections of the loop. Insulation consisting of ten laminations of 0.003 in. stainless steel shim stock spaced 1/8 inch apart produced a temperature drop across the 15/16 inch annulus of 1200 F with a heat loss of 1.04 KW per foot of 2 inch schedule 40 pipe. The curve of heat loss vs. temperature difference is presented which, with results of similar tests with a 1… more
Date: August 17, 1959
Creator: Knight, R. B. & Helms, R. E.
Partner: UNT Libraries Government Documents Department
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Isotopic Sources of Secondary Radiation : Interim Technical Report Covering the Period from June 15, 1958 to March 1, 1959

Description: During the first eight months of this program the emphasis has been places on experiments and calculations on the x-ray target configurations and materials. We have found, by extending the experimental information using Pm147, Kr85, and Sr90-Y90, as well as by developing the theoretical x-ray production for these sources, the approximate conditions under which isotopic sources will emit nearly monochromatic x-rays suitable for gaging and radiographic application in the 10 to 100 Kev photon ener… more
Date: March 17, 1959
Creator: Voyvodic, L. (Louis)
Partner: UNT Libraries Government Documents Department
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Results of Parallel Flow Oscillator Studies. Progress Report No. 2

Description: From the results of the tests it is clear that changing from series to parallel flow effects little or no change i the nature of the reactivity feedback. The physical processes which characterize the magnitude and time dependence of the negative power coefficient of reactivity are apparently identical in both instances. Accordingly, it is reasonable to infer that the conclusions reached as he result of the series flow studies are still valid. These are :(1) the overall power (temperature) coeff… more
Date: April 17, 1958
Creator: Smith, ‎R. R.; Boland, James F., 1927- & Thalgott, F. W.
Partner: UNT Libraries Government Documents Department
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Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator

Description: "ABS>Injection trajectories were calculated for different injection conditions for the Cambridge Electron Accelerator, considering also the effect of magnetic fringing fields. The general problem of matching the emittance of the linac to the acceptance of the synchrotron in the transversal phase space is considered, and it is shown that this can be done by a set of two quadrupole lenses. In order to eliminate rudial betatron oscillations due to energy deviations of the injected particles, a pul… more
Date: April 17, 1957
Creator: Steffen, Klaus G.
Partner: UNT Libraries Government Documents Department
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Precision Beta-Ray Spectroscopy : Termination Report

Description: Detailed information on the radiations associated with several even-even isotopes has been obtained. In some instances enough information has been gathered to allow construction of skeleton energy level diagrams for the isotopes. Activities studied were obtained from pile irradiation of pure odd-even natural isotopes and included Dy160, W182, Sm152, Gd152 and Gd154. Details of the work done on and results obtained for these isotopes are reported in section 3. Some analytic and experimental stud… more
Date: April 17, 1956
Creator: Fowler, C. M.
Partner: UNT Libraries Government Documents Department
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Use of 4Pi High-Pressure Ionization Chambers as Secondary Standards for Calibration of Gamma-Ray Sources

Description: This memorandum is intended to serve as a nearly final draft of a section of a future report on an experiment to determine the spectrum of gamma-rays given off during U-235 fission. For this purpose it is necessary to give adequate details to expose the major bases of the spectrometer calibration in the lower energy regions.
Date: April 17, 1961
Creator: Peelle, R.W.
Partner: UNT Libraries Government Documents Department
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THOROBRED - An IBM-704 Code for Steady State Nuclear and Economic Calculations of Two=Region Homogeneous Reactors

Description: THOROBRED is an IBM-704 code for the calculation of nuclear and economic characteristics of two-region homogeneous reactors operating on a U-Th fuel cycle in the steady state. The major input variables are reactor dimensions, power level, thorium concentration, chemical and purification systems cycle times, corrosion rates, fraction of Pa loss, and nuclear and economic data. The output includes equilibrium isotope concentrations, neutron balance, and a breakdown of fuel cost. Running times are … more
Date: January 17, 1961
Creator: Jaye, S. & Fowler, T. B.
Partner: UNT Libraries Government Documents Department
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Instantaneous Velocity Profile Measurement by Photography

Description: The following is taken from ORNL-2257, Instantaneous Velocity Profile Measurement by Photography, by R. E. Lynch, L. D. Palmer, and G. M. Winn. This report is in in preparation status; and errors, inconsistances, and omissions in he language, as well as in the technical aspects, may exist. The technique of using phosphorescent particles to enable photographic determination of qualitative and quantitative instantaneous velocity profiles is covered by AEC Patent Application No. SN-710, 371 issued… more
Date: August 17, 1959
Creator: Lynch, F. E.; Palmer, L. D.; Winn, G. M. & Hoffman, H. W.
Partner: UNT Libraries Government Documents Department
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Status and Future Program of Homogeneous Reactor Fuel Processing Studies

Description: The behavior of insoluble corrosion products in the HRT is generally understood and studies of the removal of these solids by hydroclones can logically be terminated after the effect of higher processing rates by the multiple hydroclone has been determined. Chemical descaling may be required to supplement solids removal by hydroclones. Laboratory studies to find suitable reagents will be continued in conjunction with decontamination work presently in progress.
Date: June 17, 1959
Creator: Burch, W. D.; Haas, P. A. & McNees, R. A.
Partner: UNT Libraries Government Documents Department
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The Relationship of Aqueous ThO2 Slurry Physical Properties of the Engineering Design of a Reactor System

Description: In a reactor system the principal components affect by slurry properties are the blanket vessel, pressurizer, heat exchanger, and dump tant. The particular properties that affect the operation of these components are: caking, degree of flocculation, foaming, and slime formation. these properties are related to the characteristics of compounds in a reactor system through experience gained in the operation of slurry loops. It is pointed out that the optimum slurry for one component may not necess… more
Date: June 17, 1957
Creator: Thomas, D. G.
Partner: UNT Libraries Government Documents Department
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Summary of Corrosion Data for HRT Mockup Operational Period Ending February 16, 1957

Description: The HRT mockup was shut down February 16, 1957 after operating for 576 hours on high concentration uranyl sulfate. At this time, all corrosion samples in the system were removed and replaced, and the wire extending thought the letdown hear exchanger was removed of examination.
Date: June 17, 1957
Creator: Wacker, R. E. & Griese, J. C.
Partner: UNT Libraries Government Documents Department
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