title: Use of an image orthicon as an array of lock-in amplifiers.
abstract: If the accelerating voltage is modulated, an image orthicon TV camera can be operated as a synchronous, bipolar image detector. Experimental verification of this mode of operation is presented.
authors.forename: H H
authors.initials: HH
authors.lastname: Barrett
authors.forename: A F
authors.initials: AF
authors.lastname: Gmitro
authors.forename: M Y
authors.initials: MY
authors.lastname: Chiu