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A Monte Carlo Calculation of the Neutron Detection Efficiency of a Hydrogen Bubble Chamber

Description: Abstract: "The calculation of the efficiency of the Los Alamos hydrogen bubble chamber for detection of neutrons in the energy range 5 to 35 MeV has been done using a "Monte Carlo" technique. The detection efficiency is calculated as a function of energy of the neutron and angle of the proton recoil."
Date: September 1962
Creator: Wooten, J. K. & Bryant, H. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Leakage Neutron Spectrum of U²³³ Critical Assembly

Description: Abstract: "The leakage neutron spectrum of a U²³³ spherical critical assembly (Jezebel) has been measured using nuclear emulsions as radiator and detector. The spectrum obtained is compared with similar measurements on the U-235 and Pu-239 analogues of Jezebel U²³³; it is found to agree closely with that of the Pu-239 assembly and to be harder than that of the U-235 assembly. All three spectra are compared with theoretical spectra obtained from a numerical approximation to the neutron transport… more
Date: September 1962
Creator: Bobisud, Larry E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat Transfer and Thermal Stresses in Nuclear Reactor Shells

Description: A method is presented for determining heat transfer rates and thermal stresses from the gamma-ray energy absorption of nuclear reactor shells for plane, cylindrical, and spherical geometries. Criteria for minimizing thermal stresses are developed, along with the corresponding external cooling rates necessary to minimize the thermal stress. Design charts are presented for rapid determination of approximate thermal stresses and heat transfer rates, along with a numerical example illustrating the … more
Date: September 1953
Creator: Durham, Franklin P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Gallium on Plutonium Assay

Description: Several of the plutonium assay methods were reexamined as part of a continuing effort to make improvements in these frequently used analyses. This investigation included a study of the controlled-potential coulometric, amperometric, potentiometric, and photometric titration methods and their applications to assays of delta-stabilized and alpha plutonium metal.
Date: November 1962
Creator: Bergstresser, K. S. (Karl Samuel), 1909-2004 & Waterbury, Glenn R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Determination of the Coefficient of Thermal Expansion of Alpha Plutonium

Description: The coefficient of linear expansion of alpha plutonium has been determined for the range -180 to +100 degree C by the silicon-tube and dial-indicator method. The value of the expansion coefficient is reported as [formula]. Included are a detailed description of the apparatus and a discussion of the method.
Date: March 1, 1952
Creator: Elliott, R. O. & Tate, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Survey of Some Los Alamos County Canyons for Radioactive Contamination, Spring 1953 to Spring 1955

Description: Abstract: This document is a survey analysis of soil samples from Los Alamos, Pueblo, Bayo, and Mortandad canyons to determine the presence and activities of radioactive contaminants. Also included are the results of analyses of a few samples of grass and of surface water. This survey covers the period from spring 1953 to spring 1955.
Date: April 1956
Creator: Dodd, Aubrey O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Data acquisition system for the Large Scintillating Neutrino Detector at Los Alamos

Description: The data acquisition system for the Large Scintillating Neutrino Detector (LSND) is described. The system collects time and charge information in real time from 1600 photomultiplier tubes and passes the data in intelligent-trigger selected time windows to analysis computers, where events are reconstructed and analyzed as candidates for a variety of neutrino-related physics processes. The system is composed of fourteen VME crates linked to a Silicon Graphics, Inc. 4D/480'' multiprocessor compute… more
Date: January 1, 1992
Creator: Anderson, G.; Cohen, I.; Homann, B.; Smith, D.; Strossman, W.; VanDalen, G. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Magnetic Field Distributions in a Pinched Discharge

Description: By use of small magnetic probes inserted into the discharge, the magnetic field distributions in the interior of a high-power pinched discharge have been measured as a function of time. From these data the current distributions can be deduced. By applying a static pressure calculation, in the cases when the radical pinch accelerations are small, the plasma pressure nkT in the pinch has been determined, with superimposed axial magnetic fields, and for stable and unstable configurations.
Date: November 20, 1956
Creator: Burkhardt, L. C.; Lovberg, Ralph H. (Ralph Harvey) & Phillips, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radioactive Decontamination Tests on Surgeon's Gloves Contaminated With Plutonium

Description: Report discussing the effectiveness of various methods for removing plutonium from contaminated gloves. The cost of decontaminating the gloves using the most effective method was three times the cost of new gloves, and "consumer resistance" was noted among users of treated gloves.
Date: March 1957
Creator: Kennedy, William R. & Webber, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Emissions Inventory Report Summary for Los Alamos National Laboratory for Calendar Year 2006

Description: Los Alamos National Laboratory (LANL) is subject to annual emissions reporting requirements for regulated air pollutants under Title 20 of the New Mexico Administrative Code, Chapter 2, Part 73 (20.2.73 NMAC), Notice of Intent and Emissions Inventory Requirements. The applicability of the requirements is based on the Laboratory's potential to emit 100 tons per year of suspended particulate matter, nitrogen oxides, carbon monoxide, sulfur oxides, or volatile organic compounds. Additionally, on A… more
Date: September 28, 2007
Creator: Group, Ecology and Air Quality
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On the Possibility of Extracting Energy from Gravitational Systems by Navigating Space Vehicles

Description: 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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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