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Polonium production neutron flux in bismuth columns

Description: On the basis of polonium assays by the customer, an improved equation for the prediction of the polonium content of a bismuth tube has been developed.
Date: December 3, 1945
Creator: Wende, C. W. J.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Mach Number on the Aerodynamic Characteristics of a Single-Engine Pursuit Airplane as Determined From Tests of a 1/3-Scale Model

Description: Report discussing the effects of Mach number on the aerodynamic characteristics of an Allison powered single-engine pursuit airplane. Information about the lift, drag, pitching-moment characteristics, stability, tail effectiveness, and elevator effectiveness with Mach number is provided.
Date: May 3, 1945
Creator: Robinson, Robert C. & Jessen, Henry
Partner: UNT Libraries Government Documents Department
open access

July 16th nuclear explosion: Permanent earth displacement

Description: A measurement was made of the permanent earth movement in the neighborhood of the tower caused by the nuclear explosion at Trinity. The crater was apparently formed by a compression phenomenon and was noted to be much shallower than craters formed by ordinary high explosives. Scaling up existing information on the radius of craters, the TNT equivalence of the nuclear bomb is given as 10,000 tons to within 50 percent. Observations were made on the damage in the crater region and suggestions are … more
Date: October 3, 1945
Creator: Reines, F.
Partner: UNT Libraries Government Documents Department
open access

Knock-Limited Blending Characteristics of Benzene, Toluene, Mixed Xylenes, and Cumene in an Air-Cooled Cylinder

Description: "An investigation was conducted to determine the knock-limited blending characteristics of leaded fuels containing selected aromatic fuel components (benzene, toluene, mixed xylenes, and cumene). Each of the aromatics was blended with an alkylate blending agent and with a virgin base stock. The blending characteristics of the resulting fuels were determined in a full-scale aircraft-engine cylinder" (p. 1).
Date: February 3, 1945
Creator: Hensley, Reece V. & Breitwieser, Roland
Partner: UNT Libraries Government Documents Department
open access

Endurance Tests of a 22-Inch-Diameter Pulse-Jet Engine With a Neoprene-Coated Valve Grid

Description: Report discussing the results of testing to determine the operating life of a 22-inch-diameter pulse-jet engine equipped with a neoprene-coated valve grid. The valve grid was found to extend the operating life and only reduced the performance slightly.
Date: October 3, 1945
Creator: Manganiello, Eugene J.; Valerino, Michael F. & Breisch, John H.
Partner: UNT Libraries Government Documents Department
open access

Transference and Adsorption on Glass of Carrier Free Zirconium

Description: .Technical report describing the transference experiments. The carrying of zirconium and columbium by ferric hydroxide has a very marked dependence on pH. In the experiments it was noticed that the concentration of Zr activity in various solutions changed with time This indicated that the Zr was being adsorbed on the glass. The carrier free trace is adsorbed on glass. This effect must be considered in experiments with Zr tracer in glass apparatus.
Date: January 3, 1945
Creator: Dodgen, H. W. & Rollefson, G. F.
Partner: UNT Libraries Government Documents Department
open access

Healing of Fast-Neutron-Induced Changes in Graphite. III. Further Experiments on Effect of Heating During Exposure

Description: Abstract. It has been established that heating samples of graphite during exposure in a pile decreases substantially the observed changes in the elastic modulus and electrical resistance caused by the irradiation. The functional relationship between the percentage changes observed and the temperature of exposure resembles the relationship between the final percentage changes and the temperature of heat treatment after exposure (cf. report CC-1668). Anomalous results reported previously for hi… more
Date: March 3, 1945
Creator: Neubert, T. J.; Novick, A.; Schenek, R. T.; Shapiro, E. & Van Dyken, A. R.
Partner: UNT Libraries Government Documents Department
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