Resource Type
Serial/Series Title
NACA Research Memorandums
269
NACA Technical Notes
133
Atomic Energy Commission Reports
113
NACA Technical Reports
54
NACA Technical Memorandums
50
United States Bureau of Mines Reports
48
Hanford Works Reports
33
Report of investigations (United States. Bureau of Mines)
30
HW (Series)
29
United States Geological Survey Reports
27
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Initial Experiments on the Brookhaven Reactor. VI. Fast Source Correction for Diffusion Length Measurements on BNL Reactor
In a manner somewhat analogue to that employed by R. Margulies in his memo (BNL Log No. C-2985) on fast source corrections in sigma piles, corrections to be applied to the data obtained on the laid-up graphite in the BNL reactor have been calculated. The correction was computed for a Ra-Be source using the data of Seren and using a standard graphite density for the BNL pile of 1.69. Values of the correction for different experimental sets of data were computed for each of three different diffusion lengths measured parallel to the channels. A correction for diffusion lengths perpendicular to the channels was also determined.
Date:
August 18, 1949
Creator:
Weil, J. W.
Object Type:
Report
System:
The UNT Digital Library
Survey of the Present Status of Isotope Separation Methods
The problem of the separation or enrichment of isotopes is as old as the knowledge of the existence of isotopes of stable elements. The article focuses on the mass-dependent property of atoms continuing to be investigated in laboratories to test its usefulness for new solutions to this problem.
Date:
October 14, 1949
Creator:
Groth, W. (Wilhelm)
Object Type:
Report
System:
The UNT Digital Library
New Accelerators of Charged Particles
This article examines the history of accelerating charged particles with new types of accelerators. It is translated from a Russian publication.
Date:
January 1949
Creator:
Grinberg, A. P. (Anatoliĭ Pavlovich)
Object Type:
Report
System:
The UNT Digital Library
Supplemental Technical Report on an Improved Process for the Manufacture of High Purity Calcium, Period Covered November 10, 1948 to January 31, 1949
Abstract. Experimental work was carried out to improve material conversion efficiency and to reduce handling costs inherent in the present process for production of high purity calcium. Charges up to 54 pounds were handled successfully in the equipment available. Material losses were reduced and more complete removal of alkali and alkaline earth metals was effected by controlled pressures of inert gas and by melting under positive pressure of Argon.
Date:
January 31, 1949
Creator:
Brown, H. & Woodberry, P.
Object Type:
Report
System:
The UNT Digital Library
A Comparative Analysis of the Liquid Metal Heat Transfer Systems for WMA
Introduction. As stated in Report KAPL 116, one of the objectives of the KAPL reactor is "to provide a prototype demonstration of the practical general of electrical power from Nuclear energy using molten sodium as the primary coolant. The reactor will generate steam at a temperature of 550 degrees F and 465 psia, including 90 degree superheat potentially capable of an efficiency of twenty-eight per cent in electrical output." The work reported here is intended to increase the scope and supply an independent check on the heat transfer system analysis that has previously been done. The purpose of these analyses is to investigate the effects on load rating and top reactor temperature.
Date:
April 29, 1949
Creator:
Selby, J. D.
Object Type:
Report
System:
The UNT Digital Library
A Preliminary Geophysical Investigation of Carnotite Deposits in Mesa County, Colorado
This report follows a preliminary geophysical investigation that was made in the Colorado-Utah Plateau in search of carnotite ore deposits.
Date:
October 1949
Creator:
Davis, W. E.; Swartz, Joel H. & Shuler, R. M.
Object Type:
Report
System:
The UNT Digital Library
The pegmatites of the Errington-Thiel mine, Elko County, Nevada
A report regarding pegmatites of the Errington-Theil mine, Elko County, Nevada.
Date:
December 1949
Creator:
Hinrichs, E. Neal
Object Type:
Report
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: December 1948
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1949-01~
Creator:
Geological Survey (U.S.). Trace Elements Office.
Object Type:
Report
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: February 1949
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1949-03~
Creator:
Geological Survey (U.S.). Trace Elements Office.
Object Type:
Report
System:
The UNT Digital Library
The copper-uranium deposits in White Canyon, Utah
Field work in White Canyon was initiated to determine reserves of uranium ores and to determine the nature of the physical, geological, and economic conditions affecting mining and milling of such ores.
Date:
January 27, 1949
Creator:
Smyth, Sam K.
Object Type:
Report
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: January 1949
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1949-02~
Creator:
Geological Survey (U.S.). Trace Elements Office.
Object Type:
Report
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: March 1949
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1949-04~
Creator:
Geological Survey (U.S.). Trace Elements Office.
Object Type:
Report
System:
The UNT Digital Library
Equilibria in the Oxide Systems of Praseodymium and Americium
The thermal decomposition of the higher oxides of praseodymium and americium have been investigated.
Date:
April 14, 1949
Creator:
Asprey, L. B. & Cunningham, Burris Bell, 1912-1971
Object Type:
Report
System:
The UNT Digital Library
The Chelate Process: [Part] 5. Investigation in Horizontal Extractors
The recovery of plutonium has been demonstrated in a laboratory countercurrent horizontal extractor using the TTA process. Using three extractive stages and two washing stages in each step, a recovery of 91 percent has been obtained in the chelation step and a recovery of 99.9+ percent in the de-chelation step. With five extractive stages, recoveries of 94-98 percent have been found for the chelation step.
Date:
July 29, 1949
Creator:
Hicks, T. E.; Rubin, B. & Vermeulen, T.
Object Type:
Report
System:
The UNT Digital Library
Summary of the Research Progress Meeting of September 1, 1949
The absolute excitation functions for the production of fission by charged particle bombardment in several substances were investigated at both high and low energies. The low energy work was done at the 60-inch Crocker cyclotron with alpha particles and deuterons, while the high energy work was done at the 184-inch cyclotron with alpha particles, deuterons, and protons.
Date:
October 13, 1949
Creator:
Wakerling, R. K. (Raymond Kornelious), 1914-
Object Type:
Report
System:
The UNT Digital Library
Procedures in Magnetic Measurements at the University of California Radiation Laboratory, Berkeley: Fields Which are Constant or Vary Slowly with Time
The flux standard is a device which will give a known flux-linkage change to be used as a calibration. At the Radiation Laboratory, two types of flux standards are used, a stationary type and a portable type.
Date:
August 16, 1949
Creator:
Richardson, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Use of the Characteristics of Permalloy in Detecting a Predetermined Value of Magnetic Field or Current in a Time-Varying Electromagnet: 1/4 Scale Bevatron Operating Model, Magnetic Field Strength-Magnet Current Correspondence
In programming the sequence of events in the operational cycle of the bevatron, certain devices must be triggered at specific values of magnetic field strength in the gap. It is desirable that the time-jitter, which corresponds to field jitter, of the tirggering pulses be small. In the synchrotron this is done with peaking strips which are located in the fringing field of the gap.
Date:
March 24, 1949
Creator:
Richardson, R. E.; Shuey, R. L.; Younkin, R. & Stephan, W. J.
Object Type:
Report
System:
The UNT Digital Library
Method of Operation of the Permeameter
In H measurements, the measured flux-linkage change represents twice the value of H to be plotted. In B measurements the bucking coil links flux equal to the air-flux in the B-measuring coils. The measured flux change therefore corresponds to twice the flux of intrinsic magnetization in the sample.
Date:
January 21, 1949
Creator:
Richardson, R. E.
Object Type:
Report
System:
The UNT Digital Library
The Distribution of the Positive-Negative Ratio for Mesons
Positive and negative mesons produced in a common target in the cyclotron are received in two photographic plates. In the magnetic field of the cyclotron, negatives are deflected to one plate, positives to the other. The mesons must pass through an absorber before entering the plates in order to be observable.
Date:
December 14, 1949
Creator:
Rankin, Bayard, 1924-
Object Type:
Report
System:
The UNT Digital Library
Lectures on Nuclear Science and Engineering, November 16, 1948 to February 1, 1949
Technical report including multiple lectures on nuclear science and engineering, planned to survey the theories, designs, operations, and experimental facilities of the Brookhaven Nuclear Reactor.
Date:
1949
Creator:
Brookhaven National Laboratory
Object Type:
Report
System:
The UNT Digital Library
Thermal Conductivity of Graphite
Technical report outlining the differences in conductivity of AGOT graphite and AGHT graphite.
Date:
November 28, 1949
Creator:
Garth, R. C. & Sailor, V. L.
Object Type:
Report
System:
The UNT Digital Library
Atomic Bomb Investigation
The following document is a collection of investigative reports on the victims of the atomic bomb in Japan. Information covers injuries, how the victim was found, if they were protected, where they were when the bomb went off, radiation effects, and more.
Date:
1949
Creator:
Joint Commission for the Investigation of the Effects of the Atomic Bomb in Japan
Object Type:
Report
System:
The UNT Digital Library
Corrosion resistance and magnetic susceptibility
From summary: "On the basis of the tests described herein, the corrosion characteristics of T-347 welded stainless steel are found not to be affected by the magnetic properties of the welds even though these properties are likely the result of the presence of the ferritic structure."
Date:
March 7, 1949
Creator:
Koenig, W. W. & Heckman, R. L.
Object Type:
Report
System:
The UNT Digital Library
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.
Object Type:
Report
System:
The UNT Digital Library