title: Multichannel, direct-reading spectrograph attachment.
abstract: An instrument is described which provides a multichannel direct-reading capability for photoelectric spectrographic detection. The important feature of the instrument is the ability of the user to select at will any combination of channels for position adjustment and to move these while preserving the optical integrity of the enclosure. Photomultipliers are used and the results of performance tests are described.
authors.affiliation: Center for Research in Experimental Space Science, York University, Downsview, Ontario M3J 1P3, Canada.
authors.forename: M W
authors.initials: MW
authors.lastname: Cann
authors.forename: J B
authors.initials: JB
authors.lastname: Shin
authors.forename: R W
authors.initials: RW
authors.lastname: Nicholls