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Tetragonal Structure of Indium

Description: It is shown that the tetragonal stricter of indium may be accounted for on the basis of the electron theory of metals by demonstrating that, with suitable assumptions concerning effective masses of overlap electrons and other parameters, the total energy of the metal crystal is less for the observe red c/a ratio that for a c/a ration of unity, volume being preserved in the change of c/a ratio. No increase in the energy is found with further increases in c/a ratio. The effect of holes in the fir… more
Date: December 1958
Creator: Wood, Van E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prescoping Optimization for Selection of Enriched Uranium Gas-Cooled Power Reactor Design

Description: A preliminary set of performance calculations were made for enriched reactor cores based on five cylindrical vessel designs ranging from13 to 36 feet in diameter. The capital costs per kilowatt of electrical plant output as shown in Table II indicate than an economic optimum selection of pressure vessel size should be either the 25 foot or the 36 foot vessel.
Date: February 14, 1958
Creator: Farmer, W.; Hill, E.; Lang, P.; Trickett, K. & Matovich, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Proton Component of the Primary Cosmic Radiation

Description: The proton component has been extensively studied at high altitudes on a series of 6 Skyhook balloon flights at various latitudes using the Čerenkov-scintillation counter technique. The intensity of primary protons has been measured at 4°, 41°, 53°, and 55° geomagnetic latitude. The proton differential energy spectrum has been measured directly in the region 250-750 Mev. It is observed that primary alphas and protons have the same form of rigidity spectrum from 1 Bv to 17 Bv. A series of cutoff… more
Date: January 1, 1958
Creator: McDonald, Frank B. (Frank Bethune) & Webber, William R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Field Emission from Metal Whiskers

Description: Vapor grown single crystal whiskers were produced from Al, Cu, Fe, Ni, Si, Mo, and C. The technique is described, and it is pointed out that it enlarges the scope of field and ion microscopy. Involatile imparities can be eliminated making it possible to grow clean emitters of almost any material in high vacuum.
Date: January 1, 1958
Creator: Melmed, A. J. & Gomer, R. (Robert)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of Chemical Characteristics of the 1B Boiler. Section II. Test Results DL-S-209.

Description: The purpose of the test was to determine the extent of mixing when chemicals are added to an idle boiler. The conclusion was that the chemicals added to the 1B boiler in a hot, idle condition did not become evident in any of three sampling locations tested within a period of two hours after the chemical injection. It is concluded that circulation in idle boilers is inadequate to promote the mixing necessary to distribute chemicals throughout the unit in a two hour period.
Date: January 15, 1959
Creator: Kline, H. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermoelectric Properties of the Plasma Diode

Description: It is well known that thermionic emission into vacuum is accompanied by a Peltier cooling of the vacuum metal interface. The interface may be thought of as a junction between two conductors: the metal, and an electron gas whose distribution is determined primarily by space charge. The addition of a small amount of easily ionized gas to the vacuum region does not affect the Peltier cooling of the interface, but is does squeeze the space charge region to about one micron and replaces most of the … more
Date: July 25, 1958
Creator: Lewis, H. W. & Reitz, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polarography in Organic Analysis

Description: The discussion attempts to summarize present trends and future possibilities. After consideration of the areas of analytical applicability of polarography of organic compounds with stress on the use of chemical treatment to convert polarographically inert species to active ones, the importance of the composition of the test solution is discussed from the viewpoint of the effects of pH, buffer composition and concentration, ionic strength, solvent nature and additives. The critical factors in th… more
Date: January 10, 1959
Creator: Elving, Philip J., 1913-1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of the G Factor for Gas Scattering Experiments

Description: The "G factor'' relating the yield to the beam intensity, target density, and scattering cross section is calculated for several types of aperture boundaries. The case of a front aperture composed of two parallel edges of infinite height with a rear aperture of any shape is calculated up to terms in the fourth derivative of the cross section. (W.D.M.)
Date: October 31, 1959
Creator: Silverstein, Edward A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Initial Start-Up and Low Power Operation. Test Results DL-S-161 (T-550127). Special Procedure Section 1

Description: The purpose of the test was to determine the Reactor Plant Systems operating characteristics during start-up and in the low power range. The Decay Heat Removal Valve, instead of operating for one hour as called for in the Test Procedure, operated for only six minutes. This was due to the fact that the turbine room basement became filled with steam when the Decay Heat Removal Valve opened. Due to the fact that the valve operated only once, the data therefore includes information for only one loa… more
Date: January 14, 1959
Creator: Noble, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactor Coolant Loop Outage Test. Section I. Second Performance. Test Results DL-S-170 (T-554928-A)

Description: The purpose of this test was to determine the temperature transient experiences as a result of the loss of an operating loop during power operations when the main coolant hydraulic stop valves remain open. Also to determine the effectiveness of the operating procedure for removing a loop from service when the reactor is critical. The conclusions were the temperature transients experienced in the 1C loop as a result of keeping the hydraulic valves open after the 1C Main Coolant pump had been sto… more
Date: January 15, 1959
Creator: Jones, Roger L.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Shut-Down Cooling of ORR

Description: The purpose of this memo is to present information which may be used in estimating the magnitude of the shut-down cooling problem in the ORR at various power levels. Using previously estimated data for the MTR (IDO-16443), a rough estimate of the space distribution of heat release after shut-down is presented.
Date: August 14, 1959
Creator: Cole, T. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Surface-Exchange Method for Determination of Surface Area of UO2 Powder

Description: Applicability of the surface-exchange method of determination of surface area of UO2 powder has been investigated. Preliminary results indicate that the method offers a rapid and easy determination of surface area with a precision of ~ 10%.
Date: August 6, 1959
Creator: Ferguson, R. L. & Leddicotte, G. W.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase Stability of Homogenous Reactor Hot Fuel Solutions

Description: Portions of two samples of HRT fuel solutions were sealed in silica capillary tubes approximately three weeks after they were removed from the reactor and the temperature at which each solution separated into two liquid layers was determined.This report gives the results of these observations.
Date: August 18, 1959
Creator: Barton, C. J.; Gill, J. S.; Hebert, G. M.; Marshall, W. L. & Moore, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reprocessing of ARE Fuel, Volatility Pilot Plant Runs E-3 Through E-6

Description: The Fluoride Volatility Process was developed to recover uranium from fused salt reactor fuels. After two testing runs had been completed processing was interrupted because of a UF6 leak. After all faulty connections and seals had been made gas-tight, processing of the ARE fuel was resumed and carried to completion. This report covers processing of the ARE fuel through the last four runs plus a summary of the entire ARE reprocessing program.
Date: August 26, 1959
Creator: Whitmarsh, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Temperature Transients Due to Density Changes on Changing Power Level in the HRT

Description: Changing the power level in the HRT leads to small average density changes in the high pressure system which produce noticeable changes in the nuclear average temperature. It is calculated that taking the reactor from zero power to 5Mw in one-half hour will lead to a temperature rise of about 0.7 degrees C, followed by a gradual fall over a two-hour period to about 1.3 degrees C below the temperature at zero power.
Date: April 6, 1961
Creator: Tobias, M.L. & Vondy, D.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Electroless Nickel Brazed Tube Bundles

Description: Two arrays of stainless steel tubes and ferrules which had been electroless nickel brazed were submitted for metallographic evaluation. These represented the first and second attempts of Ferrotherm of Cleveland to fabricate fuel bundles using the procedures outlined by Westinghouse Atomic Power Department for the Yankee Power Reactor.
Date: April 26, 1961
Creator: Crouse, R.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation and Specifications of Miniature Fermi Reactor Core B Fuel Specimens for Irradiation Testing

Description: The preparation of miniature plate specimens containing dispersions of 33.2 wt % UO2 in type 347 stainless steel for irradiation testing is described. These plates stimulate the prototype roll-bonded stainless steel clad composite plates intended for the Core B fuel element of the Enrico Fermi sodium-cooled reactor. The significant characteristics of the fabricated irradiation specimens are tabulated. The samples will be used to determine the irradation behavior of 33.2 wt % UO2 at temperatur… more
Date: April 21, 1961
Creator: Cherubini, J.H. & Williams, R.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Temperature Aspects of the HFIR Control Plate System

Description: This study examines the effects of water flow rate through the control region on local bulk water temperature and on control plate surface temperature, radial thermal expansion, and thermal stress. Flow rates of 1200, 800 and 400 gpm are considered for each of three control plate positions typical of startup, mid-cycle, and end-of-cycle. Based on the factors investigated in this study, the calculations indicate that a flow rate as low as 400 gpm may be reasonable.
Date: April 18, 1961
Creator: Haack, L.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Examinations of Pump Impellers From Sodium and Fused Salt Pump Endurance Tests

Description: Examinations of three Inconel pump impellers were made to establish the extent of cavitation damage and degree of carburization sustained during pump endurance tests. The pumps, two of which circulated fluoride salt and one sodium, had operated for the bulk of the test programs in the temperature range 1000-1250 deg F. Cavitation damage was manifested in each of the impellers by the formation of deep pits (in excess of 1/4-inch), the location of damaged areas varying with impeller geometry.
Date: April 10, 1961
Creator: DeVan, J.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron Losses to Pa-233 in the Aqueous Homogenous Breeder Reactor

Description: Neutron losses to Pa-233 in the blanket of the AHBR were computed and compared for two cases: (1) concentration of Pa-233 is maintained uniform by continuous mixing, (2) batches of fertile material are shifted periodically from high- to low-flux regions of blanket. It was found that, if the fertile material is cycled through three radial positions in three days, the loss of neutrons to Pa-233 is no more than one per cent greater than if it is mixed continuously.
Date: April 26, 1961
Creator: Miller, J.W. & Alexander, L.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Governor Performance Tests. Section IV. Second Performance. Test Results DL-S-174

Description: The purpose of this test was to determine the load at which each of the governor valves opens with a primary plant T(avg) of 500 F. Conclusions: It was found that the No. 2 valve opened at a generator load of 16.6 mw, the No. 3 valve opened at a generator load of 33.6 mw and the No. 4 valve opened at a generator load of 48.4 mw.
Date: January 15, 1959
Creator: Mafrica, R. M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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