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Preliminary Report on Thermal and Electrical Conductivities of Some Plutonium-Aluminum Alloys

Description: Abstract: "The thermal and electrical conductivities of a series of Pu-Al alloys have been determined in the range 0.12 atomic percent Pu. The conductivities are approximately proportional to the volume of free aluminum."
Date: March 15, 1950
Creator: Gibney, Robert B. & Sandenaw, Thomas A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Forging Techniques for Uranium

Description: Uranium has been successfully forged using a Lobdell-Nazel forging hammer and a forging temperature range of 500 to 650 degrees centigrade. Using standard forging techniques, the metal readily flowed at the temperature chosen. A noticeable increase in tensile strength, yield strength and percent elongation was obtained in forged metal as compared with cast metal. To obtain complete recrystallization and uniform grain size, a minimum of approximately 75 percent reduction in cross section by forg… more
Date: November 1, 1950
Creator: Anderson, R. E.; Taub, J. M. & Doll, D. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Neutron Energy Distributions Inside the Fast Reactor

Description: This technical report presents results of nuclear plate work carried out to determine the neutron energy distribution inside the Los Alamos fast reactor. Most of the distributions which were investigated are valid over the energy region from 0.4 to 6 Mev. The results show that at the center of the reactor pot about 65% of the neutrons are located below 1 Mev in a rather narrow energy region which has a maximum in the neighborhood of 0.5 to 0.6 Mev. Above 2 Mev the energy distribution is similar… more
Date: December 15, 1950
Creator: Nereson, Norris G., 1918-2007
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Design for a Rotary Reactivity Control for a Test Reactor

Description: Tests made on the Oy-Tu reacting assembly at Pajarito indicate that the lateral displacement of two halves of the active material within the assembly can be used as a control mechanism on this type of reacting assembly. This report describes a reacting assembly using a rotary control mechanism based on this principle and indicates the sensitivity of control possible with such a device.
Date: September 18, 1950
Creator: Josephson, V. (Vernal)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oralloy Shape Factor Measurements

Description: Measurements have been at the Pajarito remote control laboratory to determine the effect of change of shape on system reactivity for oralloy cylinders. Systems tested include cylindrical configurations with various height-to-diameter ratios ranging from slabs to rods. Each system reactivity is referred to that of a sphere in the same tamper. Reactivity tests were made on bare (untamped) Oy configurations, as well as on systems In tuballoy tampers 1.12,1.87,and 8.0 thick. The amount of reactivit… more
Date: August 8, 1950
Creator: Josephson, V. (Vernal), 1913-1997; Paine, R. W. Jr. & Woodward, L. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development for Techniques for Rolling Uranium Metal

Description: Uranium can be rolled from cast metal or forged ingot to sheet satisfactory for cupping, deep drawing, and similar fabrication procedures by a combination of hot breakdown in the neighborhood of 600 deg C and warm finishing at 225 to 325 deg C. Sheet may also be obtained by hot rolling alone and by warm rolling alone. However, it is difficult to secure a uniform, controlled grain size by hot rolling only and warm rolling is time consuming because of the limited reduction per pass obtainable. Th… more
Date: November 15, 1950
Creator: Deutsch, D. E.; Hanks, G. S.; Taub, J. M. & Doll, D. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oralloy Hydride Critical Assemblies

Description: Part I of this report covers critical-mass determinations for pseudospheres of oralloy hydride composition (approximating UH3) in 8"-thick Tu and Ni tampers and in the Tu tamper with Ni liner. The critical mass of a hydride cube in the thick Tu also is given. Data on weight and dimensional changes of hydride pieces during the period of use are included. In Part II are presented the results of Rossi time-scale measurements on the hydride assemblies. Values of alpha at delayed critical and its va… more
Date: May 22, 1950
Creator: Paxton, Hugh Campbell; Orndoff, John D. & Linenberger, G. A. (Gustave Aaron)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Reaction of Tritium and Stopcock Grease

Description: This investigation was begun as a result of a mass spectrometric measurement of two samples of tritium which had been stored for several months in Pyrex glass bulbs using stopcocks. The first of these was originally supposed to be of extremely high isotopic and chemical purity. What was observed at this time was 1.45 H had accumulated, and that tritiated methane, CT4, was also present to the extent of 0.18%. A consistent attempt had been made in this sample to protect the gas from contact with … more
Date: August 8, 1950
Creator: McInteer, B. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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