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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)
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)
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.
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.
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.
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.
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.
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
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.
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-
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.
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.
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.
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-
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
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.
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
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
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
Redox : Analytical Research Group Report [for] March and April 1949
Report discussing the results of research conducted by the Hanford Works Analytical Research Group during the period from March 1949 to April 1949.
Date:
June 21, 1949
Creator:
Schmidt, H. R.
System:
The UNT Digital Library
Fast Neutron Irradiation Procedure
This report discusses a series of investigations for biological and biochemical study of chronic exposures of animals to neutrons through an irradiation procedure.
Date:
1949
Creator:
McDonald, Ellice, 1876-
System:
The UNT Digital Library
The Spectrochemical Analysis of Hafnium and Zirconium
Abstract: "The analysis of hafnium and zirconium by the copper spark technique is presented for solutions of HCl, HF, and HClO4 acids. The special techniques of electrode protection and vacuum drying of perchloric acid samples are outlined. Also given are the working curves and deviations of both elements."
Date:
March 16, 1949
Creator:
Conway, John G. & Moore, Milton F.
System:
The UNT Digital Library
The Preparation and Properties of Uranium Trifluoride
From abstract: "The means of preparing uranium trifluoride are discussed. The most practical method is the reduction of uranium tetrafluoride with uranium although reduction with hydrogen or atomic hydrogen may also be feasible...A literature survey and discussion of other means of preparation are given."
Date:
1949
Creator:
Warf, James C.
System:
The UNT Digital Library
Remote Control for Continuous Liquid Extractors
Abstract: An electronic device has been developed for indication at a distance and simultaneous automatic correction of changes in density, temperature, and interface level of polyphase solutions.
Date:
1949
Creator:
Schenck, Remsen T.
System:
The UNT Digital Library