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Technical Report Archive and Image Library
740
National Advisory Committee for Aeronautics Collection
509
Office of Scientific & Technical Information Technical Reports
227
TRAIL Microcard Collection
116
Texas State Publications
5
Docs In The News
2
Stillwater History Museum at the Sheerar, Stillwater, Oklahoma
2
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2
Boy and Girl Scout Annual Reports
1
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NACA Research Memorandums
269
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133
Atomic Energy Commission Reports
113
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54
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50
United States Bureau of Mines Reports
47
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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States
Production for Mesons by X-rays
At the spring, 1949, meeting of the National Academy of Sciences(l) a preliminary account was given of some observations of mesons produced by the 335 Mev x-ray beam from the Berkeley synchrotron. The present paper is a progress report of this work; no claim is made for completeness, but sufficient new data are available to make publication at this time worth while, especially since some of the numerical results given in the earlier report require revision. The x-ray beam, produced by the impact of 335 Mev electrons on a 20 mil thick platinum target, has a width at half maximum of 0.0135 radian (about 1 inch at 6 feet from the target). In all but the earliest experiments the beam was further defined by a 1 inch hole in a lead block, then passed through a piece of carbon which served as the meson source. The x-ray intensity at one meter from the target was about 3500 r per hour (measured behind 1/8 inch of lead) under the best running conditions; the average was about half this. The actual exposures at the carbon meson source (6 feet from the target) ranged from 500 to 2000 r in the later runs. …
Date:
September 15, 1949
Creator:
McMillan, Edwin M.; Peterson, Jack & White, R. Stephen
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.
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.
System:
The UNT Digital Library
The Solvent-Extraction Performance of Redox IC Columns (ANL June 1948 Flowsheet) Using Raschig Ring Packing, and Unirradiated Uranium: Redox Technical Study No. 14
A report which summarizes the performance data obtained from Redox solvent extraction IC Column studies made prior to January 15, 1949 in accordance with conditions of the A.N.L. June 1, 1948, Flowsheet.
Date:
August 22, 1949
Creator:
Hartzell, L. O.; Woodfield, F. W. & Bradley, J. G.
System:
The UNT Digital Library
Urine Analysis for Tritium Oxide
This report analyzes a procedure based on the production of acetylene from the active water, with subsequent measurement of the ionization caused by the tritium beta particle. This eliminates the troublesome absorption on the chamber walls when hydrogen is used, and provides a rapid method for the preparation of the urine samples.
Date:
July 27, 1949
Creator:
Healy, J. W.
System:
The UNT Digital Library
Rate of Burnout of Absorbers
Report discussing change in absorptivity of some rare earth elements over time.
Date:
July 19, 1949
Creator:
Gillette, P. R.
System:
The UNT Digital Library
A Rapid Colorimeric Method for the Determination of Phosphate in Uranium Waste Solutions
Report discussing tests of a new colorimetric method. From abstract: "A colorimetric method, which is a modification of the classical phosphomolybdic acid method, has been developed for the determination of phosphate in synthetic uranium waste solutions...The chief advantage of the method, over those presently included in HW Manuals, is the rapidity with which determinations may be carried out."
Date:
August 22, 1949
Creator:
Sege, C. A. & Ice, C. H.
System:
The UNT Digital Library
The Identification and Determination of Trace Amounts of Rare Earth Elements in Graphite by Neutron Activation
Abstract: "A method is described for the identification and quantitative determination of trace amounts of rare earths in graphite by measurement of the energies and decays of the activities induced by neutron irradiation. The specific rare earth elements identified are europium and samarium. During the development of this method, the half-lives of Eu-152 and Sm-153 were determined. These are reported as 9.32 +/- 0.04 hours and 46.34 +/- 0.23 respectively."
Date:
September 1, 1949
Creator:
Ross, A. M.
System:
The UNT Digital Library
Life of Van Stone Corrective Measures
This report is a document summarizing all information available on life aspects of various measures proposed to reduce or eliminate corrosion of Van Stone flanger.
Date:
September 12, 1949
Creator:
Botsford, C. W. & Eschbach, E. A.
System:
The UNT Digital Library
Stepwise Calculation for the Determination of the Number of Transfer Units in Countercurrent Extraction Columns
Report discussing a method for the stepwise calculation of the number of transfer units utilized in a given solvent extraction operation. "Use of the method results in a very appreciable saving in time of calculation with an error of 1.5% for the runs tested. The error tends to become smaller with increasing total numbers of transfer units involved."
Date:
September 12, 1949
Creator:
Burns, W. A. & Eschbach, E. A.
System:
The UNT Digital Library
The Determination of Free Nitric Acid in Solutions Containing Uranyl Nitrate, Aluminum Nitrtae and Sodium Dichromate
The following report describes the developmental process of the determination of free nitric acid in solutions containing uranyl nitrate, aluminum nitrate and sodium dichromate.
Date:
October 21, 1949
Creator:
Moore, Robert Lee & Schmidt, H. R.
System:
The UNT Digital Library
The Preparation of Aluminium Nitrate from Hydrated Aluminum Oxides
This report discusses methods of producing aluminum nitrate for the Redox process. Large amounts of aluminum nitrate are consumed during the Redox process, so this report explores preparation of this material through the dissolution of hydrated aluminum oxide in nitric acid.
Date:
October 5, 1949
Creator:
Harmon, M. K.
System:
The UNT Digital Library
Purification of Graphite : (Supplementary Document to HW-12780)
Report discussing experiments and developments in purification of graphite starting from March, 1949.
Date:
October 4, 1949
Creator:
Garbrecht, M.
System:
The UNT Digital Library
Special Irradiation of Temperature-Indicating Liquid: Final Report--Production Test 105-266-P
A report discussing an experiment conducted to determine the effect of radiation on the melting point of Tempilaq, a commercially available, temperature-indicating liquid.
Date:
August 18, 1949
Creator:
Carbon, M. W.
System:
The UNT Digital Library
Corrosion Rates of Mild and Stainless Steels Exposed in Redox Stream IAW : (ANL, June 1, 1948 Flowsheet)
Introduction: In order to determine the relative corrosion resistance of welded mild and stainless steels in Redox Stream IAW neutralized to pH 0, 2, and 10 a test program, described below, has been carried out.
Date:
November 1, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
Corrosion Investigations of Redox Pilot Plant Equipment at Oak Ridge National Laboratories
The following report is based on the observations made during a visit to the Oak Ride National Laboratories of their Redox Pilot Plant equipment.
Date:
November 3, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
Polarographic Determination of Hexone
The following report describes polarographic methods that determine saturated aliphatic carbonyl compounds.
Date:
November 10, 1949
Creator:
Alkire, George J.
System:
The UNT Digital Library
Effect of Temperature on Beta-Ray Measurements
Summary: "This report investigates photographic methods of measuring beta radiation and includes a study of temperature effects on these measurements. Experimental data are submitted to show that an increase in film temperature before and during beta irradiation causes a definite increase in density for the same dosage. Recommendations drawn from experience gained in the experimental works are offered."
Date:
November 23, 1949
Creator:
Stevens, A. J.
System:
The UNT Digital Library
Density and Viscosity of Solutions in the Tributyl Phosphate Process for Uranium Recovery
The following report discusses the presentation of preliminary density and viscosity data which may explain whether higher viscosities of the Deo Base-TBP systems, and a change in density differences between the two phases will lead to unsatisfactory column operation.
Date:
November 29, 1949
Creator:
Burger, L. L. & Slansky, C. M.
System:
The UNT Digital Library
Decontamination of Redox Feed Solutions by Super Filtrol Scavenging
From introduction: "This report examines the hazard which would result in the extremely unlikely event that all of the safety devices failed to operate either by accident or sabotage."
Date:
December 2, 1949
Creator:
Roake, W. E. & Hick, H. G.
System:
The UNT Digital Library
Properties of the System: Uranyl Nitrate-Aluminum Nitrate - Nitric Acid (or Sodium Hydroxide) - Sodium Nitrate - Water - Hexone
This report discusses properties of the Redox process. Density, apparent molar volumes and viscosity are all described.
Date:
March 22, 1949
Creator:
Burger, L. L.; Rehn, I. M.; Schmidt, H. R. & Slansky, C. M.
System:
The UNT Digital Library
Fabrication of Uranium Wire
From abstract: "The present report describes experimental work performed to establish a procedure for the production of uranium metal wire. In all cases, the size of the initial rod was 1/2 inch diameter. Three materials were used: hot extruded tuballoy rod, high purity cast tuballoy rod, and cast U-235 rod."
Date:
October 25, 1949
Creator:
Anderson, R. E.; Taub, J. M. & Doll, D. T.
System:
The UNT Digital Library
Spontaneous Fission of 48
Report discussing an experiment to reinvestigate the spontaneous fission of 48 (Pu-238) in an effort to determine a more accurate value for the spontaneous fission constant that was found in a previous experiment.
Date:
December 19, 1949
Creator:
Jungerman, John A.
System:
The UNT Digital Library
Polarographic Analysis of UNH in the IAW Stream
The following report describes two rapid, micro methods for the determination of UNH in Redox waste samples that had been developed fir the concentration range 0.2 to 100 g/l.
Date:
January 17, 1949
Creator:
Alkire, G. J. & Carson, W. N.
System:
The UNT Digital Library