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Instrumentation and Some Related Problems for Neutron Flux Measurement of the Los Alamos Scientific Laboratory Kiwi-A Reactor
Abstract: "A description of the instrumentation for neutron flux measurement from Kiwi-A at NTS is given as some discussion of start-up considerations, detector design, system response adjustments, and power calibration of the reactor at some low level of power."
Date:
September 1958
Creator:
Barton, David M.; Helmick, Herbert H. & Jarvis, G. A.
System:
The UNT Digital Library
On the Possibility of Extracting Energy from Gravitational Systems by Navigating Space Vehicles
This report describes a number of problems, generally involving the possibility of using reserved kinetic energy in such a way as to acquire, by suitable near collisions with one or the other of the celestial bodies discussed, much more kinetic energy that it possesses -- more by an order of magnitude than the available reserve energy would allow it to acquire by itself.
Date:
1958
Creator:
Ulam, Stanislaw M.
System:
The UNT Digital Library
Welding of Plutonium
Delta-stabilized plutonium can be welded to itself or almost any other metal using the inert-gas metal-arc process. Equipment and procedures suitable for the welding of delta-stabilized plutonium under various conditions are described.
Date:
May 9, 1958
Creator:
Anderson, J. W.
System:
The UNT Digital Library
An Integral Experiment to Measure the Tritium Production From Li7 By 14 Mev Neutrons in a Lithium Deuteride Sphere
A sphere of LiD 2 feet in diameter was irradiated by 2 x 10<sup>15 14 Mev neutrons. Samples of Li<sup>7 metal were positioned at various radii for the irradiation. An analysis of these samples for tritium led to a determination of the number of tritons produced by 14 Mev neutrons acting on Li<sup>7 in a LiD system.
Date:
June 1958
Creator:
Wyman, Marvin Eugene, 1921-
System:
The UNT Digital Library
The Use of Quartz Tubes for Sampling and Casting Plutonium
The use of quartz tubing for sampling molten plutonium and for casting rods is described. These procedures offer cheap and easy-to-use methods for obtaining molten samples and for casting long rods with small diameters.
Date:
August 1958
Creator:
Johnson, K. W. R. & Anderson, J. W.
System:
The UNT Digital Library
A Measurement of the [Lithium-7] Cross-Section for Several Neutron Energies From 4 to 15 Mev by Absolute Counting Techniques
A measurement of the [Lithium-7] reaction cross section by absolute counting of the tritium betas is described. The cross section was measured at several neutron energies between 4 Mev and 15 Mev. A comparison with results by emulsion techniques is given.
Date:
June 1958
Creator:
Wyman, Marvin Eugene, 1921- & Thorpe, Munson M.
System:
The UNT Digital Library
Nuclear Propulsion Test Reactor Kiwi-A Neutronic Studies
Critical conditions were obtained for a series of uranium-graphite fueled assemblies in the C/Oy range 150 to 500 with thick graphite reflectors and Be or D2O islands. Perturbations were studied in order to find the effect on reactivity of geometrical changes and engineering features. Information from these studies was used to develop a mock-up of an optimum reactor geometry for the first rocket reactor test device, Kiwi-A. Studies on a zero power mock-up (Zepo-A) helped establish its design details. A cold critical check was made of the Kiwi-A reactor.
Date:
September 1958
Creator:
Orndoff, John D. & Hoogterp, J. C.
System:
The UNT Digital Library