Increasingly serious problems are occurring in the supply of carbon foils for use in high energy accelerators, where the foils are used for instance to convert negative hydrogenions into protons. we are the major u.s. source of these foils. we presently supply them to brookhaven, berkeley,… More

Two different detectors, both using thin, cracked-ethylene foils, will be made. one detector consists of a low-pressure gas cell, sealed at either end with aluminized ethylene foils about 10 micrograms per square centimeter thick. light generated when the proton beam traverses the gas will be viewed… More

We wish to explore a new method for producing very hard diamond-like coatings on optical components. to do this, we will use an apparatus that accelerates carbon ions from a carbon arch operating in vacuum. this method has several advantages: large quantities of ions can be produced, so coatings can… More

One of the major problems preventing the widespread use of hard carbon coatings for their unique optical and mechanical properties is the fact that they have not heretofore been made thicker than 1-2 micrometers. some of our recent research results suggest that stress- free carbon coatings can… More