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United States Department of Energy Grand Junction Office Reports
254
GJBX
198
United States Geological Survey Reports
128
Atomic Energy Commission Reports
127
Hanford Works Reports
66
Trace elements investigations report
66
University of California Radiation Laboratory Reports
58
HW (Series)
41
United States Bureau of Mines Reports
39
Water Resources Investigations Reports
38
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832 Matching Results
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Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator
"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 pulsed electric quadrupole lens in the synchrotron in combination with two deflectors between linac and synchrotron can be used to place particles of different energies on their specific equilibrium orbits. A layout of the whole injection system following the output of the linac is given."
Date:
April 17, 1957
Creator:
Steffen, Klaus G.
Object Type:
Report
System:
The UNT Digital Library
Production of Single Crystal Copper Films at Low Temperatures
A method is described for the production of single‐crystal films of copper at temperatures as low as −40°C. This method utilizes the epitaxy of copper on rock salt. A thin layer of copper is evaporated on a single crystal of salt at 350°C. Then a thick layer is evaporated at the low temperature. Films grown by this method have been examined using x‐ray and etching techniques. It was found that some of these films had single‐crystal regions of 1 mm diameter and larger. These crystallites had [100] directions within 1° to a normal to the film surface.
Date:
April 1959
Creator:
Yelon, Arthur
Object Type:
Report
System:
The UNT Digital Library
The Validity of the Statistical Theory of Pressure Broadening
The statistical theory of pressure broadening is developed for any interaction law in which the potential energy is inversely proportional to some power of the distance between the molecules, including cases in which the forces change sign. This note is intended to prove two propositions: A. When a spectral line is broadened by single impacts of perturbing molecules and the half-width of the line is delta infinity, the statistical theory of broadening is applicable provided delta infinity . R >> 1. In this criterion T is a time comparable to the interval in which the perturbed traverses a distance equal to the impact parameter. B. Far in the wings of a line the statistical theory is always applicable.
Date:
April 3, 1956
Creator:
Margenau, Henry, 1901-1997
Object Type:
Report
System:
The UNT Digital Library
Prebunching by Velocity Modulation in Linear Accelerators
Methods of prebatching the electron beam by velocity-modulation techniques prior to injection into a linear accelerator are discussed. A particular method (i.e., bunching at the injection energy) is analyzed in detail for one- and tw0-cavidy bunching. The physical design f a single cavity prebuncher is given for a modulation voltage 10 percent of the injection voltage and a drift space of 40 cm.
Date:
April 1956
Creator:
Smårs, E. A.
Object Type:
Report
System:
The UNT Digital Library
Precision Beta-Ray Spectroscopy : Termination Report
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 studies were carried out on the application of tilting beta-ray spectrograph sources for improvement of resolution. The uses and limitation of this technique are discussed in section 2.
Date:
April 17, 1956
Creator:
Fowler, C. M.
Object Type:
Report
System:
The UNT Digital Library
A Method for Monochromatizating and Precise Point Focusing of X-Rays and its Application in Low Angle Diffraction Studies
A principle for bending crystals with a minimum of strain so that they will focus x-rays and gamma-rays accurately to a point is explained. Detailed calculations are made of the aberrations in the foci resulting from various applications of the principle. the application of the principle in making a point focusing monochromator for low angle x-ray diffraction studies is discussed, and theoretical and experimental determinations of the reflection coefficient of the crystal are compared. A few experiments in low angle diffraction from biological materials using the new monochromator are described, and the results are compared with those obtained using other instruments.
Date:
April 1955
Creator:
Berreman, Dwight Winton
Object Type:
Report
System:
The UNT Digital Library
Studies on the Experimental Pathology and Biochemistry of the Pulmonary Granulomatosis of Beryllium Workers. Section II, Consolidated Progress Report. Supplement: a Review of the Physical Chemistry of Beryllium
The status of research is reviewed in a study of pulmonary granulomatosis in beryllium workers. Equipment for use in dust exposure studies is described. Preliminary results are reported from studies on the tissue distribution and pathological effects of beryllium dust in rats; the physical chemistry of solutions of beryllium salts; the effects of beryllium on enzyme systems, and the effects of ascorbic acid on beryllium excretion.
Date:
April 25, 1955
Creator:
Schepers, G. W. H. (Gerrit Willem Hendrik), 1914-
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report on 2% U235-Enriched UF4-C25H52 Critical Assemblies
A series of critical experiments with blocks of 2% U235-enriched UF4-C25H52 has been initiated at the ORNL Critical Experiments Facility. Thus far assemblies with H:U235 atomic ratios of 195 and 294 have been built in parallelepipedal and simulated cylindrical geometries, both reflected and unreflected. From the results the minimum critical masses for reflected spheres have been determined to be 16.3 and 8.5 kg of U235 for fuel mixtures with H:U235 atomic ratios of 195 and 294, respectively. The minimum critical masses for unreflected spheres of these two fuel mixtures are 24.3 and 12.7 kg of U235, respectively.
Date:
April 22, 1959
Creator:
Mihalczo, J. T.; Lynn, J.J.; Scott, Dunlap & Connolly, W. C.
Object Type:
Report
System:
The UNT Digital Library
Aerosol Collection by Wetted Fiberglass Media
A wet collection system for aerosols has been developed using fibrous media. Tests show the performance to be in accord with recently developed theory of collection by fibrous media. The effects of varying aerosol particle size, particle density, and gas velocity have indicated that inertial impaction is the primary collection mechanism. Three-year operating experience on several full scale plant installations shows reliable performance.
Date:
April 28, 1954
Creator:
Leary, Joseph A.; Clark, Robert A.; Hammond, R. Philip & Leopold, Charles S.
Object Type:
Report
System:
The UNT Digital Library
Grüneisen's Law and the Fusion Curve at High Pressure
A method to determine the correction to Grüneisen's law corresponding to the effect of the electrons at high pressure. It is assumed that the lattice contribution to the pressure is small and that the equation of state of the solid can be approximated by results of the statistical Thomas-Fermi atom model for the electron pressure.
Date:
April 11, 1955
Creator:
Gilvarry, J. J. (John James), 1917-
Object Type:
Report
System:
The UNT Digital Library
Report of Slurry Blanket Test Run SM-2
Run SM-2 was run to determine whether a sulfated ThO2 slurry could be handled in a hydrodynamic system similar to the HRT test blanket. It was found that the ThO2 concentration circulating in the pipes was consistently 50% or less of the expected concentration based on the quantity of the oxide changed. The run lasted 1730 hours. It was terminated because of a slurry leak a few days before a shutdown had been scheduled. Severe erosion was found in the pump impeller and flow nozzle . Chloride concentration high enough to cause concern over possible stress corrosion cracking occurred on several occasions in the pressurizer.
Date:
April 29, 1957
Creator:
Parsly, L. J., Jr.; Falkenberry, H. L. & Miller, I. M.
Object Type:
Report
System:
The UNT Digital Library
Compendium of Experimental Results of the Circulation of Aqueous Thorium Oxide Slurries in Toxoids
Data are presented for all toroid runs which circulated aqueous thorium oxide slurries between Aug, 1054, and October, 1956. In addition, a tabulation of the properties of numerous thoria preparations is presented.
Date:
April 30, 1957
Creator:
Moore, G. E.; Benson, R. F.; McDaniel, F. E. & Wheeler, S. H.
Object Type:
Report
System:
The UNT Digital Library
The Choice in Thorium Oxide Slurries for the Prevention of Caking in Circulating Systems
A qualitative theory for cake formation in ThO2 slurries is presented. The sphere formation which occurs in "Standard" slurry can be explained on the same basis. The irregular and unpredictable yield strength is easily fitted into the theory. On the basis of this theory, the writer has been led to the conclusion that only colloidally stable slurries, or slurries with crystallites or comminution-resistant particles which are large enough to overcome colloidal effects (probably larger than 0.1u) can be used with assurance in the ThO2 reactor system. This conclusion holds for 300 gm/kg slurries as well as for more concentrated mixtures.
Date:
April 22, 1957
Creator:
Lyon, R. N.
Object Type:
Report
System:
The UNT Digital Library
Possible Radiation Damage to the Stator Windings of the HRT Circulating Pump
A study of the degree and effects of radiation damage to the motor winding of the HRT 400-! canned motor circulating pumps was made. With the gamma flux estimate and the available radiation damage data, the effective life of the stator windings was estimated to be about one year, for normal operation of the pump and motor.
Date:
April 80, 1957
Creator:
Gift, E. H.
Object Type:
Report
System:
The UNT Digital Library
Temperature Effects on the Measurement of Aqueous Liquid Level by the Differential Pressure Method and Recommendations for Placement of Taps on the HRT Replacement Heat Exchanger
Increasing temperature in an aqueous liquid system results in a decrease in liquid density and an increase in vapor density. When level is measured by the differential pressure method, temperature increase results in a decrease in the effective span f the instrument and a shift in zero. When the instrument reference leg is uncompensated, both zero and span shifts occur with the effects being most pronounced at the high levels. When the reference leg is compensated, zero shifts are eliminated (instrument zero is at 100% level for this type installation). For control purposes at levels above 50% of full level, the compensated reference leg installation will give the best results. For measurement of levels below 50%, the uncompensated installation is best. As errors in level indications will be produced, in either type installation, by temperature, pressure and steam withdrawal (power) effects, the placement of taps should be such as to place the normal or control level in the region of 50% indicated level.
Date:
April 26, 1957
Creator:
Moore, R. L.
Object Type:
Report
System:
The UNT Digital Library
Curve Plotting Routine for the Oracle
A general program has been written to plot curves on the Oracle curve plotter. A description of the code and complete instructions for preparation of input tapes and operation of the code are given. The code tape is available from the Mathematics Panel or from the author.
Date:
April 11, 1957
Creator:
Lietzke, M. P.
Object Type:
Report
System:
The UNT Digital Library
A Preliminary Study of Molten Salt Power Reactors
A preliminary study of molten salt power reactors was made. The most promising fuel carrier salts were the fluorides and chlorides of the alkali metals, zirconium, and beryllium. The chlorides were found to have lower melting points but were less stable and more corrosive than the fluorides. A Li/sup 7/ F- - BeF/sub 2/ mixture with ThF/sub 4/ and UF/sub 4/appeared to perform best. Of the numerous alloys tested as container material, Inconel and a nickel-- molybdenum alloy INOR-8 appeared to be the most resistant to corrosion. To study the performance, safety, economics, and construction costs of a typical molten salt reactor, a reactor of specific type and size was chosen for study. The reference design reactor was a two-region homogeneous converter with a core salt of 70 mole% Li/sup 7/F and 30% BeF/sub 2. ThF/sub 4/ and enough VF/sub 4/ for criticality were added. Study indicated that a molten salt reactor would produce economical power, but the problem of developing a salt core and a container metal which would last for many years of operation needed further study. (M.C.G.)
Date:
April 29, 1957
Creator:
MacPherson, H. G.; Alexander, L. G.; Carrison, D. A.; Estabrook, J. Y.; Kinyon, B. W.; Mann, L. A. et al.
Object Type:
Report
System:
The UNT Digital Library
Second and Third Operating Test of HRT Core Vessel Transition Joint and Expansion Bellows Mockup
Second and third tests were conducted on an expansion bellows and Zircaloy-stainless steel transition joint assembly, duplicating that used in the core-pressure vessel assembly of the HRT. The assembly was exposed for 1140 hours in the second test and and 167 hours in the third to a solution containing 0.04m UO2SO4, 0.02m H2SO4, and 0.005m CuSO4 in a 100A dynamic corrosion loop under conditions simulating reactor startup, shutdown, and steady-state operation. Results indicated that the transition joint assembly as tested was mechanically sound and leak-tight. Pit-type corrosion continued on the expansion bellows where the upper retaining tangent contacts the bellows. Results are included of specimens exposed to the circulation solution during transition joint and bellows test.
Date:
April 30, 1957
Creator:
Greeley, R. S.; Ulrich, W. C.; Savage, H. C.; Griess, J. C. & Mauney, T. H.
Object Type:
Report
System:
The UNT Digital Library
Suggestion for High Pressure Letdown Device
A letdown valve design is described which reduces erosion of the sealing surfaces. It also provides for water flushing of the sealing surface before closing.
Date:
April 2, 1957
Creator:
Lyon, Richard Norton
Object Type:
Report
System:
The UNT Digital Library
Pressure Rise in HRT Shield Due to Reactor and Replacement heat Exchanger Rupture
.Recalculations were made of HRT cell pressures in the event of a simultaneous rupture of the reactor core vessel and the fuel and blanket heat exchangers. These calculations will be applicable after the replacement fuel heat exchanger is installed. The pressure rise in the cell is plotted as a function of time. A maximum cell pressure of 34 psig is achieved ~7 sec after rupture.
Date:
April 2, 1957
Creator:
Bolger, J. C.; Maak, R. O. & Gift, E. H.
Object Type:
Report
System:
The UNT Digital Library
Acid Formation in the Radiolysis of Phosphorus Esters
The radiolytic decomposition of tributyl phosphate has been show by burr to product gases, acids, and polymers. the acids that are formed can limit the usefulness of tributyl phosphate for the processing of radioactive materials. The study of acid formation on radiolysis therefor becomes important to us for the understanding of the mechanism of acid formation, the influence of added materials and the effect of the structure of organo- phosphorous compounds. Samples of purified esters have been irradiated in the ORNL cobalt source. Conclusions: (1) The formation of acid from tributyl phosphate during irradiation with cobalt gamma rays involves a mechanism that is not a primary step. Evidence has been obtained for a secondary reaction that is minimized by the presence of certain compounds. (2) Toluene acting as an inhibitor for radiolytic formation of acid may indicate the usefulness of an aromatic hydrocarbon diluent in processing. (3) The aromatic hydrocarbon, when phenyl, was not effective when it was part of the molecule. (4) First tests revealed that dibutyl butyl-phosphonate produced less acid the TBP and may warrant further consideration for process application.
Date:
April 3, 1957
Creator:
Baldwin, W. H.
Object Type:
Report
System:
The UNT Digital Library
Multisource Data Set Integration and Characterization of Uranium Mineralization for the Montrose Quadrangle, Colorado: Figures
Color photographs of geologic maps, Landsat imagery, and density slices for the Montrose quadrangle, Colorado. Also included is a color composite for the COCH-1 classification scheme.
Date:
April 1981
Creator:
Bolivar, Stephen L.; Balog, Susan H.; Campbell, Katherine; Fugelso, L. Erik; Weaver, Thomas A. & Wecksung, George W.
Object Type:
Photograph
System:
The UNT Digital Library
Appendix D. Sodium Iodide (NaI) Detector Data from the Mid-Enriched Zone
Tables presenting data acquired via a sodium iodide (NaI) detector used in the mid-enriched zone of each spectral gamma-ray borehole calibration model. See pages D1 - D3 of report.
Date:
April 1984
Creator:
Heistand, B. E. & Novak, E. F.
Object Type:
Dataset
System:
The UNT Digital Library
Appendix B. Neutron Profiles
Tables showing neutron profiles as both a data listing and a profile plots for moisture in models measured using an epithermal neutron-neutron probe from the Calibration Facilities Monitoring System (CFMS). See pages B-1 to B-4 of report.
Date:
April 1984
Creator:
Heistand, B. E. & Novak, E. F.
Object Type:
Dataset
System:
The UNT Digital Library