title: Cassegrainian/Gregorian-type null correctors for surface measurements of radio telescope reflectors.
abstract: The (sub)millimeter wavelength radio observatory of the next generation will probably be an interferometer array of some 50 telescopes with parabolic reflectors 10-15 m in diameter. At this scale of mass production it is convenient to have at hand for workshop assembly a reflector surface measurement technique that is precise and easy to operate. We discuss the possibility of reflector measurements based on 10.6-microm CO2 laser interferometry using Cassegrainian/Gregorian-type null correctors.
authors.affiliation: Institut de Radio Astronomie Millimetrique, 300 Rue de la Piscine, Domaine Universitaire de Grenoble, 38406 St. Martin d'Heres, France.
authors.forename: A
authors.initials: A
authors.lastname: Greve