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Reactivity of the Critical Experiment as a Function of Gap Width
"The split reactor of the Critical Experiment is analyzed, using a single-energy group-diffusion approximation. A further approximation is introduced in that the two halves of the reactor are treated as a parallelopipeds rather than the half-cylinders. The reactivity of the reactor is obtained as a function of the separation of the two halves, both for the 'standard' uranium concentration and for various greater concentrations."
Date:
August 8, 1952
Creator:
McLennan, James A.
System:
The UNT Digital Library
Air Sampling Chamber for S.I.R.
Abstract: An ionization chamber to monitor air for beta activity is described. Operating curves are given, as well as results of shock and vibration tests. Recommendation for improved design are included.
Date:
August 8, 1952
Creator:
Dewes, R. A. & Goodale, E. E.
System:
The UNT Digital Library
Preliminary Investigation of Monochromatic X-ray Absorption as a Method of Analysis for Uranium
Abstract: "Preliminary data have been taken to evaluate X-ray absorption at the L III edge of uranium as a method of detection of uranium in solution. Uranium concentrations in water from 150 ppm to 30,000 ppm have been investigated. The effect of copper as a typical contaminant in the range of 737 ppm of copper to 36,850 ppm of copper has been investigated for a representative uranium solution. Instrumentation has been constantly improved and suggestions for further improvements in amplifying and counting equipment are included. Comparison of experimental data with theory indicates that the derived equations are adequate."
Date:
April 8, 1952
Creator:
Peed, W. F. & Dunn, H. W.
System:
The UNT Digital Library
Preliminary Data on the Phase Equilibrium Systems UO₂ - MgO ; U³O⁸ - MgO ; UO₂ - Nd²O³ ; U³O⁸ - Nd²O³ ; and UO₂ - Al²O³
The following report describes data on the provided phase equilibrium systems that show the general nature of the diagrams and the compounds and solid solutions which occur.
Date:
April 8, 1952
Creator:
Lambertson, Wingate A. & Mueller, Melvin H.
System:
The UNT Digital Library
The [beta]-Spectra of Pu²³⁹, Pu²⁴⁰, Pu²⁴¹and Sm¹⁵¹
The [beta] spectrum of the 10-year Pu²⁴¹ was run on a sample of radiochemically pure plutonium containing the isotopes Pu²³⁹, Pu²⁴⁰, Pu²⁴¹, isotopically enriched in Pu²⁴¹ by pile neutron irradiation. The isotopic composition was determined mass spectrographically.
Date:
February 8, 1952
Creator:
Wagner, F.; Freedman, Melvin S. & Engelkemeir, D. W.
System:
The UNT Digital Library
Mathematics Panel Quarterly Progress Report for the Period Ending October 31,1951
Report discussing the progress of various research projects by members of the Mathematics Panel at Oak Ridge National Laboratory for the quarter ending October 31, 1951.
Date:
February 8, 1952
Creator:
Oak Ridge National Laboratory
System:
The UNT Digital Library
Summary of the Research Progress Meetings for January, 1952.
Summary of progress on various research projects conducted during January, 1952.
Date:
April 8, 1952
Creator:
Shewchuck, S.
System:
The UNT Digital Library
MTA Mark II Accelerator, Drift Tube and RF Beam Geometry Perturbing Effect of Beam in A-12
The question has arisen of how the beam in A-12 as a long resonant cavity might effect the frequency of operation and the field distribution. This study is published to make available the calculation of the direct beam effect as an illustration of general methods of attacking perturbing effects in resonant cavities.
Date:
April 8, 1952
Creator:
Good, Myron
System:
The UNT Digital Library