title: New type of stepping motor control for fast beam scraper.
abstract: A stepping motor control for a fast beam scraper in high vacuum is described. High speed (5 degrees /ms) and smooth angular velocity are obtained by using inertia motion within 270 degrees in one revolution.
authors.affiliation: National Laboratory for High Energy Physics, Oho-machi, Tsukuba-gun, Ibaraki-ken, 300-32, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ishimaru
authors.forename: Z
authors.initials: Z
authors.lastname: Igarashi