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The Cloverleaf Cyclotron Three Phase Radiofrequency System

Description: The geometry of the magnetic pole structure in the cloverleaf cyclotron suggests the use of three dees excited by three phase rf placed in the valleys out of the way of the beam. Experience with the model machines indicates that it is desirable to be able to vary the phase angles between the three dee voltages through 30 or 40 degrees and to be able to maintain them at any given value within plus or minus one degree. It is desirable, also, to be able to vary the phase angle independently of the… more
Date: September 9, 1952
Creator: Smith, Bob H.
Partner: UNT Libraries Government Documents Department
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Half-Life of Polonium

Description: Abstract: "The half-life of polonium has been measured by a calorimetric method using samples several thousand times larger than have been previously available. The value is found to be 138.3 +/- 0.1% days."
Date: September 9, 1946
Creator: Beamer, William H. & Easton, William E.
Partner: UNT Libraries Government Documents Department
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Limits of Inflammability and Ignition Temperatures of Hexone in Air and in Other Gaseous Atmospheres

Description: The following report summarizes the data taken from a series of measurements on the combustion and ignition properties of hexone. The experiments were taken at the Bureau of Mines Central Experiment Station by their personnel, and the samples were given to them by KAPL and Hanford.
Date: September 9, 1949
Creator: Alter, H. Ward
Partner: UNT Libraries Government Documents Department
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Passage of Electrons Through Matter

Description: One of the oldest properties of electrons is their emission of x-rays (discrete and continuous spectra) when impinging on matter. Cloud-chamber tracks show light ionization, and considerable multiple scattering, except for fast electrons. Tracks are long and range indefinite.
Date: September 9, 1953
Creator: Vaughan, Edward
Partner: UNT Libraries Government Documents Department
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Radiochemical Analyses for Fe, Cr, Ni, and Co Corrosion Products

Description: Abstract: Radiochemical and carrier techniques have been applied to the determination of minute amounts of Fe, Cr, Ni, and Co which appear as corrosion products of Inconel. The results are as follows: Fe, 0.061 per cent; Cr, 0.15 per cent; Ni, 0.037 per cent; and Co, .0005 per cent.
Date: September 9, 1955
Creator: Smith, R. R.; Passell, T. O. & Reeder, S. D.
Partner: UNT Libraries Government Documents Department
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Recovery of U from Pyrolytic Carbon-Coated UC2 Spheroids

Description: 100% recovery of uranium from pyrolytic carbon-coated spheroids of uranium dicarbide has been accomplished by an aqueous electrolytic process at the small scale laboratory level. This result was obtained in a system which circulated 1 molar nitric acid through a thin bed of the spheres. The bed was supported between a glass frit and the anode, with which the bed was in contact. The anode was a spiral of platinum wire; the cathode was a grid of titanium wire. Current density was about 0.2 amp/cm… more
Date: September 9, 1963
Creator: Katz, H
Partner: UNT Libraries Government Documents Department
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Self-Shielding Measurements in PPA-20

Description: From Introduction: "The self-shielding characteristics of a number of absorbers and of U-235 and U-238 have been investigated in PPA-20 (66°). Most of the measurements have been made in Ring 3 at the core mid-plane. The foil doubling technique was employed. Particular attention was given to 'thin' foil regions for the purpose of extrapolating the data to zero thickness."
Date: September 9, 1954
Creator: King, J. S.
Partner: UNT Libraries Government Documents Department
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Zirconium Tube Rupture from Localized Overheating

Description: Very little information and data are available on the various physical properties of Zircaloy tubing, especially the high temperature- high pressure failure aspects. As greater use is being made of the low cross-sectional properties of this material in the design and development of reactor components, it was considered desirable to determine the type of failure that would be experienced under conditions of a localized over-heating. This hot-spot could be caused by "cocked" or warped fuel elemen… more
Date: September 9, 1959
Creator: Jackson, P. M.
Partner: UNT Libraries Government Documents Department
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