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Acoustic Emission Weld Monitoring of Nuclear Components

Description: Acoustic emission monitoring augments other nondestructive testing methods and is sometimes applicable when other tests cannot be applied. This is, in part, due to the high sensitivity of acoustic emission monitoring. Acoustic emission monitoring is only sensitive to active flaw-growth, however, and will not detect a flaw in equilibrium. This paper describes the application of acoustic emission monitoring to nuclear reactor fuel pin end closure welds and other weldments of the reactor piping.
Date: January 25, 1972
Creator: Romrell, D. M.
Partner: UNT Libraries Government Documents Department
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Cooling Ponds: Survey of the State of the Art

Description: Since the enactment of the Water Quality Act of 1965, there has been an increasing concern over the quality of the nation's waters. Adoption of temperature standards of water bodies, combined with the economics of scale, is resulting in increased use of alternatives to once-through cooling systems, particularly ponds and towers. Approximately 60 steam-electric power plants with capacities greater than 60 electrical megawatts use cooling ponds. This report documents a review of cooling pond tech… more
Date: September 1, 1972
Creator: Sonnichsen Jr., J. C.; Engstrom, S. L.; Kolesar, D. C. & Bailey, G. C.
Partner: UNT Libraries Government Documents Department
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Length changes in FTR prototypic cladding irradiated in EBR-II to 1 x 10/sup 22/ N/CM/sup 2/, E > 0. 1 MeV (PIN B-65)(RM-24)

Description: Swelling in prototypic FTR cladding and duct specimens is being determined from a series of three irradiations designed to cover a range of temperatures approximately 800 to 1500/sup 0/F and peak fluences of approximately 1 x 10/sup 22/, 6 x 10/sup 22/, and 1 x 10/sup 23/ n/cm/sup 2/. The length change measurements for the low fluence irradiation have been completed and are summarized in this report. No swelling, only shrinkage, was found in the 20 percent cold worked Type 316 stainless steel c… more
Date: July 1, 1972
Creator: Straalsund, J. L.; Guthrie, G. L. & Larson, T. J.
Partner: UNT Libraries Government Documents Department
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Energy - Uses, Sources, Issues

Description: No Description Available.
Date: May 30, 1972
Creator: Austin, A. L.; Rubin, B. & Werth, G. C.
Partner: UNT Libraries Government Documents Department
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On the Performance Characteristics of Electron Ring Accelerators

Description: On the basis of our present understanding of the physical phenomena involved in an electron ring accelerator (ERA), a theoretical study is made of the performance which might be expected for an ERA. Rigorous upper bounds are obtained on the rate of energy gain, from which it is shown that, in order to prevent azimuthal instability, parameters must be selected such that (for reasonable fields, injector properties, etc., but with no safety factors) the proton energy gain is less than 80 MeV/m. Nu… more
Date: September 1, 1972
Creator: Mohl, D.; Laslett, L. J. & Sessler, A. M.
Partner: UNT Libraries Government Documents Department
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LIQUID-XENON-FILLED WIRE CHAMBERS

Description: The authors describe several types of small liquid xenon-filled chambers, each optimized for a particular property such as a real-time spatial resolution of {+-} 15 {mu}, a time resolution of {+-} 10{sup -7} sec, or a pulse height of 10{sup -12} coulomb. Larger chambers combining all these properties will be of great value at NAL energies, and they describe some of the techniques necessary for their construction.
Date: September 1, 1972
Creator: Derenzo, S.E.; Flagg, R.; Louie, S.G.; Mariam, F.G.; Mast, T.S.; Schwemin, A.J. et al.
Partner: UNT Libraries Government Documents Department
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INITIAL IMAGES FROM A 24-WIRE LIQUID XENON Y -CAMERA.

Description: A prototype liquid xenon {gamma}-camera has been constructed and preliminary results obtained. The sensitive volume is 7 c x 7 cm in area and 1.5 cm thick. Orthogonal coordinates for each interacting {gamma}-ray are provided by 24 anode wires 5 {micro} in diameter spaced 2.8 mm apart and 24 cathode strips.
Date: December 1, 1972
Creator: Zaklad, Haim; Derenzo, Stephen E.; Muller, Richard A. & Smits,Robert G.
Partner: UNT Libraries Government Documents Department
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A Study of Catalytic Oxidation and Oxide Adsorption for the Removal of Tritium from Air

Description: An apparatus and procedure were developed for studying the containment of tritium using catalytic conversion to the oxide followed by oxide adsorption. Data were obtained on the catalytic oxidation of elemental tritium and tritiated volatile hydrocarbons from pump oils between 23 and 538 degrees C. Oxidation efficiencies as high as 99.99997% (decontamination factor = 3.3 million) were obtained for total tritium levels of 1 ppm and a tritiated hydrocarbon level of approximately 0.2 ppb. In addit… more
Date: December 21, 1972
Creator: Bixel, John C. & Kershner, Carl J.
Partner: UNT Libraries Government Documents Department
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