Accelerator Beam Pulsing System With Extremely Wide Range of Pulse Lengths and Pulse Repetition Rates (open access)

Accelerator Beam Pulsing System With Extremely Wide Range of Pulse Lengths and Pulse Repetition Rates

The following document describes the usage and results of sending pulsed beams of electrically charged particles with electrically wide range of pulse lengths and pulse repetition rates.
Date: June 28, 1960
Creator: Aaland, Kristian
System: The UNT Digital Library
Symbols for Instrument Flowsheets and Drawings : a Recommended System for Application to ORNL Instrument Work (open access)

Symbols for Instrument Flowsheets and Drawings : a Recommended System for Application to ORNL Instrument Work

This report supersedes ORNL CF-57-2-1, which was an extension and revision of ORNL CF-54-6-72. Details concerning a recommended system of flow-plan symbols and drawing are given. The system is designed to identify the function of all major instrument components and to show schematically the operation of the instrument relative to the particular process. The system is used for identification and designation. The system is a modification of the Instrument Society of American Recommended Practice (RP 5.1).
Date: June 19, 1962
Creator: Adams, R. K.; Davis, D. G.; Hyland, R. G. & Lieberman, B.
System: The UNT Digital Library
On Neutron Evaporation From Excited Nuclei (open access)

On Neutron Evaporation From Excited Nuclei

At high excitation energies, competition of proton and c-particle emission with neutron emission becomes important. For low excitation, the competition between Y-emission, neutron emission, and fission should be taken into account. To aid in the evaluation of this competition an experiment has been performed to measure the number and energy spectrum of the protons and c-particles emitted in the high energy bombardment of uranium with protons, deuterons, and c-particles.
Date: June 18, 1953
Creator: Adelman, Frank L.
System: The UNT Digital Library
Operating Instructions for the UNIVAC Program OCUSOL-A : a Modification of the Eyewash Program (open access)

Operating Instructions for the UNIVAC Program OCUSOL-A : a Modification of the Eyewash Program

The Eyewash program, written by James H. Alexander and Nancy D. Given, provides solutions of reactor criticality problems in spherical geometry by means of the group diffusion method. It employs thirty lethargy groups (plus one thermal group) in nine regions. The input consists principally of specifying the geometrical scaling factor, boundaries and compositions of the various regions, and temperature level. The output includes the value of vc that would render the system critical, the relative fission density distribution, fissions, absorptions, and leakages in each lethargy group in each region, and, if desired, an edit of the flux at each space point, each lethargy, and an edit of the macroscopic cross sections for each lethargy, each region. OCUSOL-A is a minor modification and extension of Eyewash. It provides for the computation and editing, on the supervisory control typewriter, of the total absorptions in selected nuclides in the various regions. This information is useful in the computation of breeding ratios and the preparation of detailed neutron balances, and in the estimation of flux-averaged cross sections for use in estimating the rate of change of concentration of the various nuclides with burn-up. The program also provides for saving and transferring the final fission …
Date: June 5, 1957
Creator: Alexander, L. G.; Carrison, D. A.; Roberts, J. T. & Van Norton, R.
System: The UNT Digital Library
Clarification of Redox Dissolver Solution by Centrifugation with Scavenger (open access)

Clarification of Redox Dissolver Solution by Centrifugation with Scavenger

From statement of objectives: The purposes of the work described in this report are to provide data useful for designing and operating the dissolver solution clarification equipment to be installed in the Redox production plant.
Date: June 6, 1950
Creator: Allen, A. W.
System: The UNT Digital Library
Ceramic Investigations of UOâ‚‚ (open access)

Ceramic Investigations of UOâ‚‚

This report covers the progress made on an intensive program to develop and evaluate UO2 as a possible fuel element for the PWR.
Date: June 16, 1955
Creator: Allison, Adrian G. & Duckworth, Winston H.
System: The UNT Digital Library
Physical Properties of Neutralized Zirflex Waste (open access)

Physical Properties of Neutralized Zirflex Waste

Zirflex cladding waste is to be neutralized to pH 10 before transfer to waste storage tanks. This treatment causes the precipitation of zirconium oxide or hydroxide, which may lead to flow difficulties during transfer. The purpose of this investigation was to determine the physical properties and flow characteristics of the neutralized slurry to assist in the selectin of satisfactory transfer equipment and storage conditions.
Date: June 8, 1959
Creator: Amos, L. C.
System: The UNT Digital Library
Fuels Preparation Department Analytical Laboratory Manual (open access)

Fuels Preparation Department Analytical Laboratory Manual

The purpose of the Analytical Laboratory Manual is to assemble the basic procedures to be used for the analyses of materials employed within the Fuels Preparation Department. The methods appear in detailed steps suitable for laboratory use. This document replaces the "Essential Material Analytical Manual, " HW-25375 and "Metal Preparation Analytical Manual," HW-30862.
Date: June 1959
Creator: Analytical Laboratory Manufacturing Operation
System: The UNT Digital Library
Effects of Ultraviolet Radiation on Chloroplast Reactions and Plant Metabolism (open access)

Effects of Ultraviolet Radiation on Chloroplast Reactions and Plant Metabolism

This technical report represents a brief survey of work by this project on the effects of ultraviolet radiation (UV) on certain of the photochemical and metabolic properties of rhubarb chard and sugar beet (Beta vulgaris). These plants were selected for this work because for some years they have been used as sources of chloroplasts for Hill reaction studies in this laboratory. Some of this work has appeared as a brief paper.
Date: June 15, 1955
Creator: Anderson, Donald R.; Spikes, John D. & Mayne, Berger C.
System: The UNT Digital Library
Radiation Hazards from Recycled Reactor Fuel (open access)

Radiation Hazards from Recycled Reactor Fuel

The radiation hazards associated with recycled nuclear reactor fuels will greatly complicate the handling and refabrication of these fuels. This problem is most serious with U-233 and plutonium fuels where the presence of U-232 and the heavier isotopes of plutonium contribute energetic alpha, gamma, and neutron radiations at levels many times that from isotopically pure U-233 and Pu-239. This report summarizes present knowledge of the radiation hazards associated with recycled fuel and the additional data needed to make a thorough evaluation of these hazards.
Date: June 9, 1959
Creator: Arnold, E. D.
System: The UNT Digital Library
Bare Beryllium Extrusion Using Graphite Introductory Cones (open access)

Bare Beryllium Extrusion Using Graphite Introductory Cones

The following document describes the process of rare beryllium extrusion using graphite introductory cones with the purpose of finding a lubricant which would decrease excessive friction between the billet and prose parts.
Date: June 28, 1949
Creator: Arnold, Samuel V.
System: The UNT Digital Library
Effects on the Inhour Equation for Reactors Fueled with Mixtures of Fissionable Material (open access)

Effects on the Inhour Equation for Reactors Fueled with Mixtures of Fissionable Material

The determination of various parameters such as thermal utilization, resonance escape probability, control rod calibrations and etc. is often accomplished by the measurement of the pile period due to some given perturbation. With the present thoughts being directed towards plutonium fueled reactors, it was felt worthwhile to discuss a few of the basic differences in pile neutron behavior due to the smaller fraction of delayed neutrons per fission of Pu239 and the larger fraction of delayed neutrons per fast fission of U238 than occurs from fission of U235 alone.
Date: June 15, 1956
Creator: Astley, E. R.
System: The UNT Digital Library
Graphitization Processes in Cokes and Carbon Blacks (open access)

Graphitization Processes in Cokes and Carbon Blacks

Abstract: "The effect of heat treatment of 2000 to 4650 F on the structure of carbons from several sources have been investigated, using X-ray diffraction. Of particular interest was the effect of temperature on the degree of graphitization. The process of graphitization results in a larger graphite crystallite size in the ao direction, the plane of the layers, than in the co direction. No correlation was found between the structure of the coke heated at 2000 F and the degree of graphitization attained at 4650 F. Materials coked in a closed retort yielded a more perfect graphite structure than the same material coked with access to air. Carbon blacks yield graphite with a greater co lattice constant than cokes with comparable crystallite sizes."
Date: June 19, 1953
Creator: Austin, A. E. & Hedden, W. A.
System: The UNT Digital Library
The Chemistry of Uranium(VI) Orthophosphate Solutions (open access)

The Chemistry of Uranium(VI) Orthophosphate Solutions

From introduction: This is the first in a series of reports describing an investigation of the chemistry of uranium(VI) orthophosphate solutions which is at present underway in this laboratory. Spectrophotometric, potentiometric and solubility studies have been carried out, and it is the first of these which is reported here.
Date: June 22, 1953
Creator: Baes, Charles F., Jr.; Schreyer, J. M. & Lesser, J. M.
System: The UNT Digital Library
Fast Neutron Sensitivity of the CP Meter (open access)

Fast Neutron Sensitivity of the CP Meter

Abstract: "The sensitivity to fast neutrons of a CP Meter ionization chamber of the type used for health physics beta and gamma survey measurements has been investigated."
Date: June 10, 1949
Creator: Baker, E. E.; Gydesen, F. R. & Whipple, G. H., Jr.
System: The UNT Digital Library
Local Fields With Terminating Expansions (x) (open access)

Local Fields With Terminating Expansions (x)

"The quantum theory problem of constructing explicitly a local Lorentz invariant model field theory which has an asymptotic particle interpretation and gives rise to an S matrix different from unity is discussed. It is proved that if a local covariant field H(x) has a complete current, the S matrix associated with this field is identically equal to unity. Results show that in order to get an interaction, the current is not allowed to have a terminating expansion in terms of a free field. The absence of a finite connection between a free field and an interacting field tended to confirm the belief that in local quantum field theories with particle interpretation the requirement of the existence of scattering forces in the physical states are such that it is not pos sible to identify them with a linear space spanned by ""free'' particle states."
Date: June 2, 1961
Creator: Bardakci, K. & Sudarshan, E C.G.
System: The UNT Digital Library
The Theory Of Emulsion Track Structure (open access)

The Theory Of Emulsion Track Structure

The statistical behavior of measured track quantities, gap density, gap length coefficient, and lacunarity is studied. The transformations which give the expectation values of track quantities on inclined tracks are then found.
Date: June 1960
Creator: Barkas, Walter H. (Walter Henry), 1912-1969
System: The UNT Digital Library
Decay Modes Of Charged [Sigma] Hyperons (open access)

Decay Modes Of Charged [Sigma] Hyperons

Apparent [Sigma] hyperon decay events in a large emulsion stack of 240 9" x 12" pellicles have been classified into those judged to have occurred at rest and those in flight. Of 36 decay events at rest, 21 secondaries were observed to be protons of about 1675 microns range. Of the events decaying in flight, 23 were decays into protons and 46 were decays into near-minimum secondaries. Attempts have been made to trace the tracks of 35 of the lightly ionizing secondaries; the results of this effort are summarized in a table.
Date: June 23, 1958
Creator: Barkas, Walter H. (Walter Henry), 1912-1969; Dyer, J. N.; Giles, P. C.; Heckman, Harry H.; Mason, C. J.; Nickols, N. A. et al.
System: The UNT Digital Library
Economic Factors of MFP Thermoelectric Generators (open access)

Economic Factors of MFP Thermoelectric Generators

"Mixed Fission Products (MFP) for use as a heat source for thermoelectric generators will become increasingly available in the coming years. The Atomic Energy Commission sponsored program on solidification of nuclear wastes is now entering the hot-bench scale test phase. During this phase approximately 5000 thermal watts of two year old MFP could be produced monthly. Two different types of hot calcination pilot plants are planned for installation at the Hanford National Laboratories in the 1964 to 1966 time period. Each of these plants should be able to produce 160,000 thermal watts of two year MFP and 16,000 thermal watts of ten year MFP on a monthly basis. A full scale plant for a 15,000 Mw(e) nuclear economy is estimated to produce four to five times as much MFP as either of the pilot plants. Costs will be dependent upon AEC policy in effect at the time the plant is operating."
Date: June 1962
Creator: Barmat, N.
System: The UNT Digital Library
100-Ton Test : Measurement of the Velocity of Sound (open access)

100-Ton Test : Measurement of the Velocity of Sound

Abstract: The velocity of sound at the time of 100-ton shot at Trinity was measured to be 1116.1 ft/sec. Values of blast pressure computed from the excess velocity are given, but are not considered as reliable.
Date: June 15, 1945
Creator: Barschall, H. H. & Martin, G.
System: The UNT Digital Library
Fused Salt Compositions (open access)

Fused Salt Compositions

The compositions of the compounds and fused salt mixtures referred to in the ANP project by numbers are given.
Date: June 20, 1957
Creator: Barton, C. J.
System: The UNT Digital Library
Ceramic-Based Materials for High Temperature Service (open access)

Ceramic-Based Materials for High Temperature Service

The following report provides data that was discovered from a preliminary literature survey that was made to define the utility of the newer refractory ceramics or ceramic-based materials.
Date: June 11, 1951
Creator: Bates, W. A.
System: The UNT Digital Library
Design Considerations Of Ultrahigh Vacuum Systems For Metallurgical Applications (open access)

Design Considerations Of Ultrahigh Vacuum Systems For Metallurgical Applications

Under the stimulus of electronic materials development - particularly thin-film studies - and the need for space environmental simulation chambers, a very rapid increase in the availability of industrial-sized vacuum components and systems operable in the ultrahigh vacuum range has taken place in the last three years. It is the purpose of this paper to explore the design considerations of ultrahigh vacuum systems for metallurgical applications.
Date: June 10, 1964
Creator: Batzer, Thomas H. & Bunshah, R. F. (Rointan Framroze)
System: The UNT Digital Library
Influence of Fluorine Substitution on the Properties of Metal Chelate Compounds (open access)

Influence of Fluorine Substitution on the Properties of Metal Chelate Compounds

From introduction: "This is the first of three articles dealing with the influence of fluorine substitution in the ligand on the properties of metal chelate compounds. Although the primary purpose of this project was to study the influence of fluorine substitution on the properties -- particularly light absorption -- of uranyl compounds, copper chelates were chosen for preliminary study as model substances, because they are easily prepared."
Date: June 9, 1955
Creator: Belford, R. Linn; Martell, Arthur E. & Calvin, Melvin, 1911-1997
System: The UNT Digital Library