Abstract: Studies were made of the air-borne contamination present during the operation of reducing plutonium tetrafluoride powder to the metal. Equipment design changes were made and operation technique changes were made until the amount of contamination present during operations was well below tolerance levels.

The following report covers investigations on the application of the beta counter as an analytical tool for use in experiments on the extraction and concentration of uranium from low-grade (.005-.02 % uranium) shale and phosphate rock ores.

Report discussing experiments investigating the effects of radiation and metal toxicity on the function of the liver, kidneys, adrenals, and bone marrow of experimental animals.

The following report is divided into two parts, both parts center around the effects of radiation on skin tissue. Part one focuses on superficial radiation, or Beta rays, while part two is on penetrating radiation, or neutrons and gamma rays.

Abstract: A spectrophotometric determination of iron employing the ferrous-1, 10-phenanthroline complex has been developed. The colored complex is measured at a wave-length where interference of the yellow uranyl ion is a minimum. Recommended procedures and analytical results using these procedures are given. Data are presented which indicate that the iron in the acid-insoluble residue is negligible. A method for the determination of iron in ammonium oxalate is included.

Report discussing methods and theories of solvent extraction. Factors that influence solvent extraction, such as the distribution coefficient, relative solubility, and physical properties of the solvent, are discussed as well.

This report discusses the contributions of the workers at Tennessee Eastman Corporation in the investigation of limiting conditions in the application of penta-ether (aka. dibutoxytetraethylene).

Introduction: "The purpose of this work was to develop a high-frequency pulse generator that could be used in conducting research on high-rate trigger pairs and scaler circuits. The need for an instrument of this type arose because there was no parallel commercial instrument having this type arose because there was no parallel commercial instrument having a pulse recurrence frequency over approximately 200,000 pulses per second."

This report provides the monthly radiation monitoring sampling surveys for 1947.

On June 23, 1947, a hole was discovered in the earthen fill near the T Plant R-19 stairwell directly above the path followed by the underground waste lines from the canyon. Jetting of all canyon wastes to the 241 Buildings was stopped and the canyon process shut down. This report discusses repair and characterization procedures for the soils and waste line pipe.

Data acquired form the sampling of Yakima River water-t Tests is presented. The sampling took place on June 24, 1947. The samples were analyzed for ph value, alkalinity, chlorine, harness, NH(sub 3), NO(sub 3), biological oxygen demand, dissolved oxygen, and turbidity.

Data acquired from the sampling of Yakima River water on June 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, alkalinity, NO(sub 3), NH(sub 3), and ph value.

This report contains a letter, written on July 25, 1947, concerning the sampling program at Columbia River. The author suggests reducing the sampling schedule. He states that chemical composition sampling should be reduced by one-fifth and radioactivity sampling be reduced by one-third. He suggests that only mid-channel samples are required for representative studies. He further states that weekly sampling should occur. By following these suggestions, the cost of the sampling program should be drastically reduced because the hours of manpower taken to sample the river, analyze the data, organize, and store information would be reduced.

Data acquired form the sampling of Yakima River water July 24, 1947, is presented. The water was analyzed for hardness, turbidity, dissolved oxygen, ph value, alkalinity, chlorine, NH(sub 3), NO(sub 3), and total solids.

Data acquired from the sampling of Columbia River water July 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, ph value, NO{sub 3}, NH{sub 3}, total solids, and alkalinity.

This memorandum discusses the roflanging of the corroded rear Van Stone flanges at the B Pile after cutting 3/8-inch off the rear gun barrel which should place the B Pile in a condition as good as, or better than that of the D or F Piles.

Abstract: This technical report consists of series of drawings of the instrument with the following explanation. The modification of the Simpson Methane flow proportional counter consists of a means for inserting and replacing samples into the chamber through an air-lock device which avoids the introduction of even a small quantity of air into the active volume of the chamber. This is accompanied by sweeping out the small volume of the air-lock containing the sample with methane gas before the sample is introduced into the chamber -- this sweeping out requiring only a few seconds. The mechanical construction is somewhat simplified over that employed in the Simpson counter design, although the electrical and counting characteristics are essentially duplicates of those employed in the Simpson version. Voltage plateaus about 400 volts long, flat within 1% per 100 volts are obtained with the counter, with the operating point at about 2500 volts for methane at one atmosphere pressure. A plateau extending over a range of about 40% variation in amplification factor is obtained. Standard samples have been checked to standard deviation of +/-0.3% over a period of one year. The counter is rather gas-tight and is ready for use within about ten minutes …

The emf of galvanic cells at high temperatures was measured using uranium metal in equilibrium with its chloride as one half of the cell, the other half of the cell being some reference electrode such as silver - silver chloride. Several designs of cells tried are described. A value of 2.83 volts/eq. at 1170[degree]K and also at 990[degree]K is considered as the most probably value for the potential of the uranium halide couple.

Report describing results of experiments that involved injecting radioactive yttrium into animals: "The excretion, retention, and distribution of the yttrium was measured, and its effect on survival and growth was observed. The average total excretion of Y91 to the time of death (from 76 hours to 24 days) was a little less than 30 per cent of the injected dose" (p. 2).

Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.