Watermeyer, Nicholas

A target carrier assembly includes a housing, a target, and a collimator. The housing includes a collimator compartment and a target compartment divided by a vacuum window foil, the collimator being removably disposed within the collimator compartment, and the target being disposed within the target compartment. The collimator compartment is attached to a cyclotron beam line in the irradiation position, and the target compartment is in fluid communication with a cooling fluid supply line and a cooling fluid return line in the irradiation position. The target is cooled by the cooling fluid from the cooling fluid supply line. The collimator directs a particle beam from the cyclotron beam line to irradiate the target and includes a beam entry diameter and a beam exit diameter. The collimator is in thermal contact with the collimator compartment.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

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An object of the present invention is to provide a rust-preventive composition which has a sufficient corrosion resistance, exhibits an excellent rate of decrease in viscosity with increase in temperature, and is less prone to sagging as the temperature rises when formed into a coating. The above object is resolved by a rust-preventive composition comprising: a rust-preventive additive; bentonite; a filler; a hardened oil; and a diluent; wherein the content of wax is within the range of from 0% by mass to 1% by mass, the content of the rust-preventive additive is within the range of from 16% by mass to 35% by mass, and the content of the bentonite is within the range of from 2% by mass to 6% by mass; and wherein the rust-preventive composition has a rate of decrease in viscosity at a temperature of from 20°C to 80°C of 25% or less.

An object is to provide a surgical electrode of an electrosurgical instrument used for surgery of a living tissue, the surgical electrode having a coating to which carbides of the living tissue and the like are unlikely to adhere and which has excellent adhesion, by incorporating a surface treatment coating showing a specified infrared absorption spectrum, to an end portion of the surgical electrode. In particular, even in both a condition where blood is much and a condition where protein and/or lipid are/is much, good burn resistance is exhibited. The present disclosure relates to a surgical electrode of an electrosurgical instrument used for surgery of a living tissue, wherein the surgical electrode comprises an end portion capable of emitting a high frequency, the end portion has a surface treatment coating, and the surface treatment coating has a peak (α) in a range of 950 cm<-1> to 1060 cm<-1>, a peak (β) in a range of 720 cm<-1> to 830 cm<-1>, and a peak (γ) in a range of 450 cm<-1> to 495 cm<-1> in an infrared absorption spectrum, and a ratio (β<A>/α<A>) of a peak intensity (β<A>) of the peak β to a peak intensity (α<A>) of the peak α is 0.770 to 1.040.

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Provided is a method for producing a quaternary ammonium compound aqueous solution, said method being characterized in that: the quaternary ammonium compound aqueous solution contains not more than 1,000 ppm of organic impurities that have a molecular weight of not less than 1,000 g/mole; and a raw quaternary ammonium compound aqueous solution that contains specific quaternary ammonium ions and that contains metal impurities is brought into contact with a cation exchange resin which has a crosslinking degree of not less than 6 and counter ions of which are non-metal ions.