455 Matching Results

Results open in a new window/tab.

80" Bubble Chamber Expansion System Preliminary Operating Procedures (open access)

80" Bubble Chamber Expansion System Preliminary Operating Procedures

These procedures are intended to be used for the initial operation of the expansion system and serve as a basis for a more complete and revised form to be written once operating experience has been gained. An attempt has been made to offer a logical and systematic presentation to facilitate operation and maintenance of the system by the operating personnel. Thus, the sequence of valve actuations has been presented in matrix and check list form to minimize errors; this also has the advantage of making it easier to adapt certain expansion system procedures to programmed control by a process control computer.
Date: January 7, 1964
Creator: Goodzeit, C. L.
Object Type: Report
System: The UNT Digital Library
80" Bubble Chamber Expansion System Summary of Piston Motion Studies (open access)

80" Bubble Chamber Expansion System Summary of Piston Motion Studies

Prior to assembly into the 80" bubble chamber, the expansion system was subjected to a series of tests to check piston dynamics and gain information on the reliability of the various components. Furthermore, the rest provided operating personnel with the opportunity to become familiar with the operation and maintenance of the expansion system. Two separate tests were performed with the apparatus that was located at the north end of the AGS experimental area; one during the week of Oct. 15 and the other during the week of Nov. 12. The system was run with helium gas supplied from AGS compressor room and the piston was operated at room temperature.
Date: January 7, 1964
Creator: Goodzeit, C. L.
Object Type: Report
System: The UNT Digital Library
80" Chamber - Low Energy Beams (open access)

80" Chamber - Low Energy Beams

One of the major, as well as first, decisions which must be taken on a large chamber is to decide on the direction of the magnetic field, i.e., vertical or horizontal. Either alternative has advantages and disadvantages ad it is the intention of this note to discuss these features.
Date: January 3, 1964
Creator: Rau, R. R.
Object Type: Report
System: The UNT Digital Library
1706-KER Coolant Test Facility Operations Manual (open access)

1706-KER Coolant Test Facility Operations Manual

This procedure is intended to be used as: 1. An instruction and guide for operation of the KER loops. 2. To aid in familiarization and understanding of the general operation of the loops. 3. To prevent lost time due to errors in loop operation. The procedure is not meant to be completely comprehensive in all details of loop operation.
Date: January 23, 1958
Creator: Dulin, R. V.
Object Type: Report
System: The UNT Digital Library
An Abrasive Cutoff Machine for Metallurgical Research on Radioactive Materials (open access)

An Abrasive Cutoff Machine for Metallurgical Research on Radioactive Materials

An abrasive cutoff machine design, based upon a previous model, (1) was undertaken to provide for the sampling of radioactive material. the design objective was; first, to provide samples for metallographic examination, second, to provide samples for physical and mechanical property testing, and, third, to meet the following design requirements: 1. Remote operation. 2. Airborne contamination control. 3. Radioactive waste collection. 4. Remote maintenance.
Date: January 5, 1957
Creator: Boyd, C. L.
Object Type: Report
System: The UNT Digital Library
Acceleration of Polarized Protons to Relativistic Energies (open access)

Acceleration of Polarized Protons to Relativistic Energies

Maintenance of polarization of polarized protons in a linear accelerator is known to be feasible. Circular accelerators present a different problem, and the investigation of the interaction of orbit dynamics and particle polarization in general is undertaken. The equation of motion of the spin vector of a charged particle in a magnetic field as formulated by Bargmann, Michel, and Telegdi is utilized in the study of depolarization for several accelerators. High values of depolarization are obtained, and means for avoiding such depolarization are suggested. (D.C.W.)
Date: January 22, 1962
Creator: Courant, E.D.
Object Type: Report
System: The UNT Digital Library
The Acetate Complexes of Uranyl Ion and the Solubility of Sodium Uranyl Acetate (open access)

The Acetate Complexes of Uranyl Ion and the Solubility of Sodium Uranyl Acetate

The following report provides data based off of the solubility of sodium uranyl acetate that was measured under a variety if conditions.
Date: January 14, 1946
Creator: Connick, R. E. & Wahl, Arthur C.
Object Type: Report
System: The UNT Digital Library
An Adiabatic Motion Of Charged Particles In Electromagnetic Fields (open access)

An Adiabatic Motion Of Charged Particles In Electromagnetic Fields

The guiding center motion and the adiabatic invariants of charged particle trajectories in electromagnetic fields are treated in this review. General and specific theories of charged particle motion are also reviewed.
Date: January 1961
Creator: Northrop, Theodore G.
Object Type: Report
System: The UNT Digital Library
An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1. (open access)

An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1.

A pilot model of an Aerodynamic Raindrop Sorter was constructed along the lines suggested by mathematical analysis. The function of the analyzer is to sort natural rain according to drop size and to collect the sorted drops for further analysis. The pilot model, a small wind tunnel inclined at 45 deg to the horizontal, demonstrated the feasibility of aerodynamic rain drop sorting over a wide range of drop sizes. (auth)
Date: January 1960
Creator: Dingle, A. Nelson & Brock, Fred V.
Object Type: Report
System: The UNT Digital Library
Aging of Al-Li Alloys - Part I (open access)

Aging of Al-Li Alloys - Part I

Technical report outlining experiments on aluminum-lithium alloys. From Abstract: "Aluminum-lithium alloys are subject to precipitation from solid solution, and may be age hardened by the same techniques used for more common aluminum alloys. Spherical particles of precipitate were observed with the electron microscope in 1.5% and 2.8% Al-Li alloys after aging for times comparable to those required to produce maximum hardness. Rod-shaped particles that were oriented parallel to either the (110) or the (111) planes of the aluminum matrix were observed in overaged specimens."
Date: January 1959
Creator: Angerman, C. L.
Object Type: Report
System: The UNT Digital Library
Aircraft Nuclear Propulsion Project Quarterly Progress Report: Period Ending September 10, 1951 (open access)

Aircraft Nuclear Propulsion Project Quarterly Progress Report: Period Ending September 10, 1951

The first part of this quarterly progress report details reactor theory and design, discussing the aircraft reactor experiment, experimental reactor engineering, reactor physics, and critical experiments. The second part of this report is not included. The third part of this quarterly progress report details materials research, discussing corrosion research, physical properties and heat-transfer research, metallurgy and ceramics, chemistry of high-temperature liquids, and radiation damage. The fourth part of this quarterly progress report details alternate systems, discussing a supercritical water reactor, circulating-moderator-coolant reactors. The fifth part of this quarterly progress report includes appendixes.
Date: January 9, 1952
Creator: Briant, R. C.; Ellis, C. B. & Cottrell, William B.
Object Type: Report
System: The UNT Digital Library
Aircraft Reactor Test Hazards Summary Report (open access)

Aircraft Reactor Test Hazards Summary Report

The successful completion of a program of experiments, including the Aircraft Reactor Experiment (ARE), has demonstrated the high probability of producing militarily useful aircraft nuclear power plants employing reflector-moderated circulating-fuel reactors. Consequently, and accelerated program culminating in operation of the Aircraft Reactor Test (ART) is under way. In order to adhere to the compressed schedule of the accelerated program, it is essential that the Atomic Energy Commission approve the 7500 Area in Oak Ridge as the test site by February15, 1955. This report summarizes the hazards associated with operating the contained 60-Mv reactor of the ART at the proposed Oak Ridge test site.
Date: January 19, 1955
Creator: Cottrell, W. B.; Ergen, W. K.; Fraas, A. P.; McQuilkin, F. R. & Meem, J. L.
Object Type: Report
System: The UNT Digital Library
The Alkaline Method for Treatment of High Radiation Level Aluminum Wastes (open access)

The Alkaline Method for Treatment of High Radiation Level Aluminum Wastes

The method is based on caustic precipitation and centrifugation (which removes the Cs and small amounts of Sr, rare earths, Zr, Nb, and Ru). These are removed in the supernatant and run through a cation exchange column. This separates Zr-NB and Ru. The effluent is precipitated and the Zr-Nb is stored in an asphalt pit. The Ru then may be recovered from the precipitate. The precipitate from the original centrifugation is calcined, pressed and transported to a deep well.
Date: January 17, 1957
Creator: Higgins, I. R.
Object Type: Report
System: The UNT Digital Library
Alkyl Phosphoric Acids as Extraction Agents for Uranium (open access)

Alkyl Phosphoric Acids as Extraction Agents for Uranium

The recent interest in tributyl phosphate as an extracting solvent for uranium indicated that consideration of n-butyl phosphoric acid for this application might be of interest if some way could be devised to overcome the manipulation and miscibility difficulties. It was found that if the material was placed in any one of a number of carrier solvents, it had a remarkably strong extractive effect on uranyl ion out of acid solutions without a salting agent present.
Date: January 27, 1950
Creator: Stewart, D. C., (Donald Charles), 1912-1996
Object Type: Report
System: The UNT Digital Library
An Alpha Energy Analyzer (open access)

An Alpha Energy Analyzer

This report provides an overview of a gridded ionization chamber, instructions on how to operate the instrument, and then discusses the performance of the instrument so far.
Date: January 27, 1956
Creator: Campbell, Don A.
Object Type: Report
System: The UNT Digital Library
Alpha Particle Detection and the A. C. Operated Detector "A" (Howler) (open access)

Alpha Particle Detection and the A. C. Operated Detector "A" (Howler)

Abstract: This discussion concerns the operation, construction, and servicing of an alpha rate meter of medium sensitivity (30,000 alpha particles full scale per minute) and good stability. The instrument is equipped with an oscillator which increases both in frequency and loudness as the alpha activity is increased. The oscillator circuit includes an anticipator which causes a change in frequency depending directly upon the rate of change of alpha activity. Maximum sensitivity is approximately 100 millivolts full scale. Grid current varies from 1 to 5 x 10^-14 amperes. A general discussion of time constants and accuracy is included. Tables of stopping power, ionization and alpha activity are appended.
Date: January 29, 1946
Creator: Neil, Hugh G.
Object Type: Report
System: The UNT Digital Library
Ames Laboratory Quarterly Summary Research Report: Octoer - December 1950 (open access)

Ames Laboratory Quarterly Summary Research Report: Octoer - December 1950

A report about investigations of several binary alloy systems of thorium. Some of these alloys containing lead, molybdenum and tin have been prepared in the tungsten arc furnace.
Date: January 30, 1951
Creator: Dreeszen, W. E.
Object Type: Report
System: The UNT Digital Library
An Analysis of Inconsistencies in Removal Cross Sections of Carbon and Oxygen (open access)

An Analysis of Inconsistencies in Removal Cross Sections of Carbon and Oxygen

Abstract. Some recent analysis of certain Lid Tank fast neutron dose rates measured in oil and water indicates that there are some basic inconsistencies with reported oxygen and carbon removal cross sections and the reported data. These inconsistencies may be explained in several ways: (1) The reported carbon removal cross section is wrong. (2) The reported oil composition is wrong. (3) The reported oxygen removal cross section is wrong since it is based on an assumed rather than a measured oil composition. (4) Some of the experimental data are wrong. It is not possible to determine which of the above is most likely on the basis of analysis alone but the possibilities are pointed out and, based on the assumption that all the experimental data are correct, it appears most likely that the oil composition assumed in ORNL 2197 was in error.
Date: January 20, 1961
Creator: {{{name}}}
Object Type: Report
System: The UNT Digital Library
Analysis of Lid Tank Neutron Data for Lead and Iron (open access)

Analysis of Lid Tank Neutron Data for Lead and Iron

Abstract: An analysis of the lid tank neutron data for Pb-H2O and Fe-H2O is made. "Effective" fast neutron cross sections for the metals are obtained. This is based on the "one collision theory" of shielding. Values are 3.4 barns for Pb and 2.0 barns for Fe. These compare very well with those obtained by Albert and Welton based on other lid tank data and another method of calculation.
Date: January 5, 1951
Creator: Podgor, S.
Object Type: Report
System: The UNT Digital Library
Analysis of Spurious Modes in Magnet Power Supply (open access)

Analysis of Spurious Modes in Magnet Power Supply

"The resonant frequencies of the magnet power supply are investigated. It is found that there are eleven resonant modes in addition to the desired mode of operation with six additional resonant frequencies. From measurements of the choke model, it appears that the frequencies of some of the spurious modes may lie in the same range as the desired mode of operation."
Date: January 3, 1958
Creator: Dekleva, J. & Robinson, K. W.
Object Type: Report
System: The UNT Digital Library
Analysis of vegetation for I¹³¹ (open access)

Analysis of vegetation for I¹³¹

Report detailing an analysis of the deposition of I-131 on vegetation. Analysis was necessary to determine the potential hazards of the gases from the dissolution of the metal on vegetation.
Date: January 27, 1950
Creator: Leboeuf, M. B.
Object Type: Report
System: The UNT Digital Library
Analytical applications of refractive index (open access)

Analytical applications of refractive index

Report detailing the refractive index of solutions of uranyl nitrate, nitric acid and aluminum nitrate. This report builds upon preliminary data and a brief discussion that from a previous report. This report covers more accurate and detailed data that had be accumulated following the initial report.
Date: January 9, 1955
Creator: Burger, L. L.
Object Type: Report
System: The UNT Digital Library
Analytical procedures for the plutonium Metal Fabrication Process (open access)

Analytical procedures for the plutonium Metal Fabrication Process

A report describing a the results of a fluorimetric and volumetric method for the determination of fluoride. This method was developed for the determination of ionizable fluorine in gases in the range of 1-500ppm. This method was chosen because the determination depends on the generation of a color rather than the bleaching effect or on a change of color.
Date: January 15, 1951
Creator: Kendall, L. F.
Object Type: Report
System: The UNT Digital Library
The Angular Dependence of Thermal Neutron Spectra in Lattices (open access)

The Angular Dependence of Thermal Neutron Spectra in Lattices

This technical report discusses techniques that have been developed for "computing the angular thermal flux spectrum emerging from a lattice. These methods are applied to water lattices and it is found that the computed spectra are sensitive to the geometrical description of the lattice, but insensitive to the anisotropic scattering by water. Comparisons with measured spectra indicate that corrections for gradients and the finite size of the experimental lattice are important." -- from abstract (p. 3).
Date: January 1962
Creator: Honeck, Henry C. & Takahashi, Hiroshi
Object Type: Report
System: The UNT Digital Library