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Defects in metal crystals. Progress report, May 1, 1973--April 30, 1974

Description: Progress was made in the following areas: FIM (field ion microscopy) studies of defects in W irradiated with W ions or electrons; FIM studies of Au irradiated with Au or Xe ions; FIM and electrical resistivity study of vacancy defects in quenched W; FIM studies of dilute Pt alloys; measurement of the range of focused replacement sequences in Au; investigation of grain boundary strtucture (using Au); FIM observation of dissociated screw dislocations in Mo; calculation of properties of point defe… more
Date: January 1, 1974
Creator: Balluffi, R.W. & Seidman, D.N.
Partner: UNT Libraries Government Documents Department
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Design requirements for uranium ion exchange from acidic solutions in a fluidized system

Description: A fluidized, countercurrent ion-exchange system was developed, operated, and evaluated by the Bureau of Mines in support of its objective to help assure an adequate uranium supply for future national needs. The system consisted of integrated multiple-compartment absorption and elution columns in which the solution flows are continuous, except for short periods when resin increments are withdrawn. The exchange of uranyl sulfate between a simulated acid-leach-uranium solution and a strong-base, i… more
Date: January 1, 1974
Creator: Traut, D.E.; Nichols, I.L. & Seidel, D.C.
Partner: UNT Libraries Government Documents Department
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Permeability and solubility of gases for FFTF/CRBRP cover-gas-seal materials

Description: The permeability (anti P) and diffusion coefficient (D) of the gases H/sub 2/, Ar, Kr and Xe have been measured in certain elastomer materials of interest to the FFTF/CRBRP Cover Seal Program. These elastomers include Buna N, Buna S, Butyl Rubber, ethylene-propylene polyacrylic, polyurethane and silicone. Measurements were made over the temperature range 100 to 300/sup 0/F. Data for the permeability and diffusion coefficient for these gases in the above elastomer materials are given. The method… more
Date: January 1, 1974
Creator: Darnell, A. J.
Partner: UNT Libraries Government Documents Department
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Cover gas seals: FFTF-LMFBR seal test program

Description: The objectives of this program are to: (1) conduct static and dynamic tests to demonstrate or determine the mechanical performance of full-size (cross section) FFTF fuel transfer machine and reactor vessel head seals intended for use in a sodium vapor-inert gas environment, (2) demonstrate that these FFTF seals or new seal configurations provide acceptable fission product and cover gas retention capabilities at Clinch River Breeder Reactor Plant (CRBRP) operating environmental conditions other … more
Date: January 1, 1974
Creator: Kurzeka, W.; Oliva, R.; Welch, T.S. & Shimazaki, T.
Partner: UNT Libraries Government Documents Department
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Report on the reconnaissance resistivity survey in the East Mesa area, Imperial County, California for U. S. Department of the Interior, Bureau of Reclamation

Description: A section of notes on geothermal exploration using the resistivity method precedes the main body of the paper. Field data from the Broadlands Area of New Zealand, Java, and the Imperial Valley, California are included. The reconnaissance resistivity survey recently completed in the East Mesa Area confirmed that a broad zone of low resistivities at depth extends through the area in a NNW direction. The interpretation of the resistivity data and the location of the resistivity lows at depth is mu… more
Date: January 21, 1974
Creator: Bell, B.S. & Hallof, P.G.
Partner: UNT Libraries Government Documents Department
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Relationships Between Fracture Toughness and Other Material Properties. Final Report

Description: The key experimental and analytical studies which have led to our present understanding of the mechanisms of ductile fracture are reviewed. It is concluded that insufficient progress has been made in the quantitative description of ductile separation mechanisms on a microscale to allow the realistic prediction of fracture toughness from material properties and microstructure. An experimental study of ductile fracture is underway which has the aim of determining the growth rate of voids in known… more
Date: January 1, 1974
Creator: Perra, M. & Finnie, I.
Partner: UNT Libraries Government Documents Department
open access

Mini-Brayton economic RTG study. Final report

Description: The objective of this study is to demonstrate the applicability of a radioisotope heated Mini-Brayton power system to the 1973 USAF/AEC requirements established for the SURVSATCOM Mission. The principal requiremenets of the power system, are: 400 We power level; maximum weight 205 lbs.; $1.2 to 2.0 million per unit cost; and 5y mission duration. A radioisotope heat source that meets the ACE Nuclear Safety Criteria is presented. The major aspects of the Reference Design MB-ERTG are summarized. T… more
Date: January 1, 1974
Partner: UNT Libraries Government Documents Department
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Fuel-transfer machine-component test. Progress report GFY 1974

Description: The objectives of this program are to conduct the development and testing necessary to produce reliable and adequate handling devices for core components for an LMFBR plant utilizing under-the-shield refueling and reactor vessel cover rotating plugs. Component performance in the following three specific areas of concern will be investigated: (1) a reliable rising stem, vertical motion, in-vessel transfer machine (IVTM) for use in an under-the-shield refueling system with multiple rotating react… more
Date: January 1, 1974
Creator: Kellogg, L. G.; Moody, E. & Jones, C. E.
Partner: UNT Libraries Government Documents Department
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A search for direct muon production in the forward direction

Description: We propose to search for direct muon production in the forward direction from 300 GeV protons incident on a heavy nuclear target. By using the first stage of the Ml beam as a source of a diffracted proton beam and the second and third stages of Ml as a spectrometer, one can make a measurement of the direct muon to pion ratio at values of x between 0.3 and 0.75. If this ratio is on the order of 10{sup -4}, the event rates are on the order of 800 direct muons/hr. at an x of .5. The modifications … more
Date: January 1, 1974
Creator: Buchholz, D.; Johnson, Rolland P.; Sumner, R. L.; Fackler, O.; Frisch, Henry J. & Shochet, M.
Partner: UNT Libraries Government Documents Department
open access

Coal Resources of the United States

Description: A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
Date: January 1, 1974
Creator: Averitt, Paul
Partner: UNT Libraries Government Documents Department
open access

1974 geothermal field tests at the Niland Reservoir in the Imperial Valley of California

Description: The phases of the 1974 geothermal field tests at the Niland Reservoir in the Imperial Valley of California are documented. The following tests are included: separator, steam scrubber, steam turbine, heat exchanger, packed heat exchanger, corrosion, chemical cleaning, and control and instrumentation. (MHR)
Date: January 1, 1974
Partner: UNT Libraries Government Documents Department
open access

Cover gas seals. 11 - FFTF-LMFBR seal-test program, January-March 1974

Description: The objectives of this program are to: (1) conduct static and dynamic tests to demonstrate or determine the mechanical performance of full-size (cross section) FFTF fuel transfer machine and reactor vessel head seals intended for use in a sodium vapor - inert gas environment, (2) demonstrate that these FFTF seals or new seal configuration provide acceptable fission product and cover gas retention capabilities at LMFBR Clinch River Plant operating environmental conditions other than radiation, a… more
Date: January 1, 1974
Creator: Kurzeka, W.; Oliva, R. & Welch, F.
Partner: UNT Libraries Government Documents Department
open access

Effect of graded doses of ionizing radiation on the human testis. [X rays]

Description: Sixty-seven human subjects with normal testicular function were subjected to acute testicular irradiation in doses ranging from 8R to 600 R. Post irradiation observations included sperm counts and morphology, and radioimmunoassays for levels of reproductive steroids and hormones in urine (later plasma). Preliminary results and irradiation procedures are tabulated. An overview and analysis of results to date is published in a separate communication. (ERB)
Date: January 1, 1974
Creator: Rowley, M J; Leach, D R; Warner, G A & Heller, C G
Partner: UNT Libraries Government Documents Department
open access

Analysis of Environmental Samples From the Mound Lab. Area. Progress Report

Description: All of the available analytical results from the 8 sediment cores and 16 water samples obtained from water bodies in the vicinity of Mound Laboratory during July 1974, are reported here. These include /sup 238/Pu in both sediment and water, /sup 241/Am in sediment and /sup 3/H in water. The quality of these analyses was found to be acceptable with the exception of an approximately 30% bias in the accuracy of the /sup 238/Pu data.
Date: January 1, 1974
Creator: Volchok, H. L.
Partner: UNT Libraries Government Documents Department
open access

Design of Heat-Recovery and Seed-Recovery Units in MHD Power Generation

Description: Crucial and limiting engineering and materials problems associated with the design of an MHD steam bottoming plant are discussed. Existing experimental and theoretical results on corrosion, fouling and deposits, potassium seed recovery and regeneration, are reviewed. The state of knowledge regarding the design of heat recovery and seed recovery units for coal-fired MHD plants is inadequate at the present time.
Date: January 1, 1974
Creator: Bergman, P. D.; Joubert, J. I.; Demski, R. J. & Bienstock, D.
Partner: UNT Libraries Government Documents Department
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