Varian Associates

About: Varian Associates is a based out in . It is known for research contribution in the topics: Beam (structure) & Amplifier. The organization has 2160 authors who have published 2591 publications receiving 46002 citations.

Resonance Properties of Single-Crystal Hexagonal Ferrites

Abstract: Ferromagnetic resonance measurements have been performed on single-crystal samples of the hexagonal ferrites BaFe12O19, Zn2Y, and Co2Y. Values of linewidth, g value, and anisotropy field are given as a function of temperature from 77°K to 600°K at various frequencies between 8 and 75 kMc. Zn2Y is singularly interesting because it exhibits an extremely narrow room temperature linewidth at X band. Values as low as 16 oe, with anisotropy fields of 9000 oe are reported. The theory of the resonance behavoir is developed and compared to the experimental results.

Strong anion exchange composition and methods

Abstract: A strong anion exchange composition useful in monophosphate nucleotide isomer separations is comprised of an inert porous particle having a silyl alkyl ammonium compound fixedly attached by a covalent silicon-oxygen-silicon bond to the surface thereof. A process for synthesizing the strong anion exchange composition in an aqueous solvent is disclosed together with methods for separation of monophosphate nucleotide isomers, highly phophorylated nucleotides and aldopentose carbohydrates using a column packed with this strong anion exchange composition.

Flange sealing joint with removable metal gasket

Abstract: An all-metal joint is provided wherein a metal gasket disposed between mating flanges can readily be removed when the joint is disassembled. Opposing faces of the mating flanges are configured to provide a recess between the flanges in which a soft metal gasket of annular configuration can be received when the flanges are coupled together. Symmetrically disposed ridges on the opposing flange faces penetrate into a peripheral region of the gasket, thereby causing a portion of the gasket material to flow into an annular groove that forms the periphery of the recess between the opposing flange faces. This compressed material in the annular groove provides a gas-tight seal between the mating flanges. The configuration of the opposing flange faces is such that when the joint is dissassembled, the net force tending to retain the gasket in position against either one of the flange faces is minimized. In particular, each flange face is configured so that the residual compressive forces present when the flange coupling mechanism is released, distributed over the surface of the gasket, are in net effect substantially equal to or greater than the frictional and bonding forces that might tend to retain the gasket in contact with either flange. In this way, the gasket tends to break away from the mating flange faces when the joint is disassembled.