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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Collection: Technical Report Archive and Image Library
Cloud Chamber: Heat Shielding, Magnet Shielding
Technical drawing of a cloud chamber and ionization chamber for use in nuclear reactors.
Cloud Chamber: Camera Lights Assembly
Technical drawing of cloud chamber and ionization chamber for use in a nuclear reactor.
Model 411 Scaler
Technical drawing of counters and circuits for use in nuclear reactors.
Wilson 4" Pump Valve
Declassified Manhattan Project technical drawings of pumping machinery in nuclear reactors.
[Technical Drawings: Spiral Carrier]
Technical drawings of screw conveyors for use in nuclear reactors.
Lower Drive Assembly
Technical drawings for construction of the lower drive assembly for a nuclear reactor.
[Technical Drawings: Building 706-D]
Technical drawings of pipettes for use in nuclear reactors.
Alpha Chamber
Technical drawings detailing alpha rays in a nuclear reactor cloud chamber.
Alpha Chamber Modified
Technical drawings for alpha rays in a nuclear reactor cloud chamber.
East Area Bldg #906: DuPont Carbon Unit
Technical drawings of nuclear reactor design.
Neutron Spectrometer
Technical drawings of spectrometer to measure neutrons in a nuclear reactor.
Model 300 Sweep
Technical drawing of signal generators for use in nuclear reactors.
8 Inch Vacuum Pump
Technical drawings of vacuum pumps and machinery for use in nuclear reactors.
Bridge 4" Oil Diffusion Pump
Set of technical drawings on the design and construction of vacuum pumps, pumping machinery, and nuclear reactors.
Model Study of Wave and Surge Action, Naval Operating Base, Terminal Island, San Pedro, California
The study reported herein was conducted in 1944 at the Waterways Experiment Station for the Bureau of Yards and Docks, U. S. Navy Department. Its purpose was to determine the best of several plans proposed for protecting the piers and dry docks at the Naval Operating Base, Terminal Island, San Pedro, California, from the effects of wave and surge action.
Investigation of the Design and Control of Asphalt Paving Mixtures: Volume 3
"This appendix presents a description of the loading equipment, the tracking procedure, and the results of tests and observations made during and after the traffic tests on the asphalt stability test section. Analyses of the test results are also included" (p. 1).
Investigation of the Design and Control of Asphalt Paving Mixtures: Volume 1
"This report presents the results of laboratory and field tests conducted by the Corps of Engineers to develop a method for the design and construction control of asphalt paving mixtures. The investigation consisted of: (a) the selection of a test apparatus and the performance of laboratory studies to develop techniques and procedures; (b) the construction of a test section and the performance of traffic tests with 15,000 and 37,000-lb single and 60,000-lb dual wheel loads to obtain design criteria; and (c) additional laboratory work to adjust the test procedures to the design criteria" (p. 1).
Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948
Map of the United States and surrounding areas with time zones marked and labeled in red. Bodies of water are marked, with depth marked by hatchures, as well as state lines and major cities..
Nomograms for Obtaining the Compound Composition of Hydrated Limes from the Oxide Analysis
Report with two nomograms presented for rapidly obtaining the compound composition of hydrated limes from the oxide analysis. The general nomogram can be applied to any commercial hydrated lime and gives values accurate to within 0.3 percent while the special nomogram is applicable only to regularly hydrated and highly hydrated dolomitic limes and is accurate to within 0.1 percent.
Charts of Compressibility Factors and Charts Showing Quantities Delivered by Commercial Cylinders for Hydrogen, Nitrogen, and Oxygen
Two charts are given for each of the gases hydrogen, nitrogen, and oxygen. The first gives directly the number of standard cubic feet of the gas which a cylinder will deliver. The second chart gives values of the compressibility factor and of the density.
[Construction Drawings Using Copper, Brass, and Steel]
Three charts of copper, brass, and steel construction for use in nuclear reactors.
A Modified Decade Scaler: Final Report on Project Authorization Number CMR-3-5
Final report describing the development and usage of an automatic decade scaler which operates for a fixed number of counts, developed for use with a Geiger tube.
Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area (Maps)
Series of eleven maps to illustrate coal mines in Maryland, to accompany a report about thinning in the coal beds.
Nomographic Charts for Nuclear Reactions
Charts that show neutron energy, laboratory or center of gravity angle, and bombarding energy for nuclear reactions.
[Charts for Various Aspects of Poles]
Chart 1A-1B. Conductor loading nomograph, Chart 2A. Bending moment due to wind pressure on pole, Chart 2B. Ultimate resisting moments of wood poles, Chart 3. Catenary curve.
Segrè Chart [Isotope Chart]
Chart showing type of radiation and isotope classification for each element, in a periodic table layout.
Simpson Proportional Alpha Counter
Declassified Manhattan Project figure of Simpson Proportional Alpha Counter.
Experimental Techniques, Part 2: Ionization Chambers and Counters
Declassified Manhattan Project document on alpha particle detectors, absolute counters, neutron recoils detectors, reactions detectors, and fission detectors,
A Laboratory Development of Cavitation-Free Baffle Piers, Bluestone Dam, New River, West Virginia
Results of model studies to determine the extent of destructive cavitation action (if any) in the stilling-basin elements at the Bluestone Dam in New River, West Virginia. The study also intended to develop means of correcting any conditions in the basin if needed.
Methods of Opacity Calculations
"Methods for calculating the opacity of materials at high temperatures are discussed in this report. Minor improvements are outlined for the treatment of continuous absorption processes, and a small error usually made in treating the scattering process is corrected. In contrast to all previous calculations of opacity, the effect of line absorption is carefully examined, for it may well be the dominant process under certain conditions of temperature and density. Detailed methods for calculating the line absorption contribution are, therefore, developed. To illustrate the principles involved, the opacity of pure iron at a temperature of 1000 volts and normal density is worked out in detail" (p. ii).
Decomposition of Water at High Temperatures and Pressures Under Reactor Irradiation
Partial abstract: "The investigation of the high temperature and pressure dissociation of water under irradiation was undertaken by the Power Pile Division of Oak Ridge National Laboratory in an effort to determine the degree of importance of the phenomenon with respect to the design of a high temperature water-cooled power reactor. Theory and past experimentation indicate that net steady-state dissociation is determined by the rates of the dissociation and recombination reactions under the imposed conditions, the dissociation rate being essentially a function of flux and the recombination rate essentially a function of temperature" (p. 3).
Cloud Chamber and Magnet Assembly with Structural Frame and Heat Exchange
Report containing a diagram of a cloud chamber and magnet assembly with structural frame and heat exchange.
Biological Action of Gamma and X-Rays
Report of experimentation on mice of exposure to daily doses of gamma radiation at two rates and the resultant damage.
Balanced Ionization Chamber for Differential Measurements of Gamma Rays
"The purpose of the work was to develop a method of measuring very small differences in the half lives of gamma ray emitting radioactive substances. The apparatus was then used to try to detect a difference in the half lives of Be7 metal and BeO. The results of the measurements on the two different chemical forms of beryllium will be given" (p. 1).
Fast Linear Amplifier Model B-3
Report containing a diagram of the Model B-3 amplifier, outlining resistor values.
Linear Amplifier Model B-1 - Model B-4
Report containing diagram of a linear amplifier, outlining resistor values and other technical specifications.
2-Fold G.M. Coincidence Unit
Report containing a diagram of a coincidence unit, outlining resistor values and other technical specifications.
The Heat of Solution of Uranium Tetrachloride in Aqueous Perchloric Acid Solutions
Abstract: "The heat of solution of UCl4 solid has been measured and found to change appreciably with changing concentration of H+ or ionic strength. The heat of hydrolysis of U+4 to form UOH+3 is probably of the order of +11 kcal per mole" (p. 1).
300-400 V Regulated Supply
1 technical drawing of a regulated supply of 300-400 volts for nuclear reactors.
10 M.C. Wide Band Amplefier and Scope
Technical drawing of an amplifier for a nuclear reactor.
Model 500 Amplifier
Technical drawing of an amplifier for use in nuclear reactors.
Pulse Analyzer: 1-Channel
Technical drawing of pulse height analyzer for use in nuclear reactors.
Scale of 64 with R.F. Power Supply - Model 400
Technical drawing of electronic circuits and power supplies to nuclear reactors.
Counting Rate Meter - Model 100
Technical drawing of counting circuits and electronic circuits for use in nuclear reactors.
Model 100 Amplefier
Technical drawing of amplifiers for use in nuclear reactors.
Model 100 Precision Pulser
Technical drawing of pulse generators and techniques for nuclear reactors.
Preamplifier: Amplifier & Limiter
Technical drawing of amplifiers for use in nuclear reactors.
Estimation of Small Quantities of Uranium in Thorium
Abstract: "Estimation of the intensity of the uranyl fluorescence furnishes a method for the determination of quantities of uranium as low as one-half microgram of uranium in one-half illilitor of glassy phosphoric acid. The test has been used to detect directly three parts of uranium in one million parts of thorium" (p. 1).
Discriminator for Photographic Analyzer
Technical drawing of frequency discriminators and image analysis for nuclear reactors.
Model 260 Sweeper
Technical drawing of signal generators for use in nuclear reactors.