Calibrations have resulted in conflicting data for the yield of neutrons from a teflon-polonium solution interface. The installation of the continuous DRUHM reaction system is approximately 60% complete. The Fluorox fluidized bed reactor was operated continuously for 12 hr, producing 1.6 Kg of UF/sub 6/. In homogeneous reactor studies, installation of a mock-up for in-pile slurry bomb heat removal tests was completed. From material balances, about 21/2 g of plutonium remain in loop P-1 after repeated washing and descaling treatments. A Sharples Model P-4 Super-DCanter was adequate for continuously discharging ThO/ sub 2/ cake and clarified supernate. In ion exchange studies, data were obtained on the complex ion equilibria in uranyl sulfate solutions. A continuous self- sustaining Darex dissolution and stripping run of 46 hr duration was made. In a hydrochlorination run of 35 hr duration, 97.4% of a 4.39 kg section of a STR subassembly was reacted with anhydrous HCI gas with a uranium loss to the sublimate of 0.095%. The studies of the dissolution of duminy zirconium fuel elements in fused salt with HF were continued at increased HF velocities. In waste processing studies, the design of an adiabatic self-sintering experiment is 90% complete and the construction of …

>A continuous process for the reduction of uranium hexafluoride to uranium tetrafluoride was developed and proved on a pilot-plant scale. Complete conversion to uranium tetrafluoride was realized by contacting gaseous uranium hexafluoride with hydrogen in a heated, vertical, open-tube reactor. The purity and density of the solid product met metal grade uranium tetrafluoride specifications. Some difficulty with the accumulation of fused uranium fluorides in the tower was encountered, however, and it was necessary to stop and desing the unit about every 8 to 24 hours. The reaction of uranium hexafluoride with gaseous trichloroethylene was stadied before the tests with hydrogen were made. Although the reduction to uranium tetrafluoride was complete, the solid product was highly contaminated with the organic by-products of the reaction and was quite low in density. Tests of this method were discontinued when promising results were obtained with hydrogen as the reductant. (auth)

This document consists of three photographs of ruptured fuel elements. The position, date charged, date failed, exposure, power, lot and failure type are given for tube 3655-KE, tube 4153-KE, and tube 3849-KE. (GHH)

Report presenting a wind-tunnel investigation to determine the drag increment due to the superposition of the wedges with various plan-form shapes along the trailing edge of a sweptback wing.

Report issued by the Oak Ridge National Laboratory discussing radiation corrosion studies. As stated in the introduction, "the purpose of this experiment was to compare the performance of a large number of materials under similar irradiation and exposure conditions" (p. 1). This report includes tables, illustrations, and photographs.

Report presenting some of the hydrodynamic problems associated with launching an air missile from underwater. The results of an experiment with models are also provided, including deviation angle, effect of forward speed of the submarine, curved path of the missile, and potential environmental disruptions.

"From these preliminary wind-tunnel tests of interceptor missile configurations and the analysis of point defense against ballistic missiles, it is concluded that adequate aerodynamic lift is readily available and should be utilized when operating under high-dynamic-pressure conditions and that more work should be done on controls, either aerodynamic or reaction type, so that the configurations may be trimmed to the angles of attack required to develop the necessary turning force" (p. 5).

Adequate mixing (80 lb/min or higher) of the core and blanket high pressure systems can be accomplished either by interconnecting the chemical plant process lines or by connecting the sample access holes of the core and pressure vessels. The cross connection of the chemical plant process lines would probably be the easiest to install and control, but if the stagnant space in the blanket corrosion sample port requires purging it is recommended that a connection between the access holes be made. (auth)

A detailed description is given of a Monte Carlo method and the accompanying IBM 704 program for the determination of the gamma energy loss distribution in the central cell of a proposed infinitely long heterogeneous reactor. (auth)

The factors which affect the extent of laminar flow on airplanes for hypersonic flight are discussed on the basis of the available data. Factors considered include flight Reynolds number, surface roughness, angle of attack, angle of leading-edge sweepback, and aerodynamic interference. Test data are presented for one complete configuration.

"This report presents some of the theory of operation of the Mirror Machine, and summarizes the experimental work which has been carried out...The modus operandi of the Mirror Machine is to create, heat and control a high temperature plasma by means of externally generating magnetic fields."

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Duty of County Judge who has received legally sufficient petition for school bond election in a common school district, and prior to his action thereon and six days later receives a second petition for election in the same district on a different amount of bonds.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Whether or not an interest owned by the Federal Land Bank of Houston, in production of oil, is subject to the production tax provided for the Article 7057a, V.C.S. and the regulation pipe line tax provided for by Article 6032, V.C.S.