Preparation of Enriched Uranium.

Thermal -Hidraolyc Study of Trr Core in Fuel Conversion Frome Highly Enriched Uranium to Low Enriched Uranium Fuel (RESEARCH NOTES)

Preparation of ingots of uranium-niobium alloy

A study was made of the preparation of a uranium 10 w/o niobium alloy by the bomb reduction of a suitable form of niobium and uranium tetrafluoride with calcium. A compound with a probable formula of Na2NbOF5 proved to be most satisfactory as the source of niobium. High yields and good metal-slag separations were obtained. Chemical analysis and density determinations showed the composition to b...

Basic characterization of highly enriched uranium by gamma spectrometry

Gamma-spectrometric methods suitable for the characterization of highly enriched uranium samples encountered in illicit trafficking of nuclear materials are presented. In particular, procedures for determining the U, U, U, U and U contents and the age of highly enriched uranium are described. Consequently, the total uranium content and isotopic composition can be calculated. For determining the...

Preparation of ethanol-enriched, bicarbonate-based hemodialysates.

We describe a method to produce bicarbonate-based dialysates containing approximately 100 mg/dl ethanol by introducing the alcohol into one of the dialysate concentrate solutions geared for the production of bicarbonate-based dialysates.

Preparation of Enriched Populations of Cortic Rostra1 Pars Distatis

A mammalian isolated adrenal cell system was validated as a bioassay for goldfish ACTH; the log dose-response curve for the goldfish hormone is parallel to that for synthetic mammalian ACTHI-,,, and the two ACTHs induce the same maximum rate of corticosterone production. Using this assay, it was observed that (1) there is a marked and consistent bipbasic change in pituitary ACTH content as rela...