title: A simple digital near infrared spectrometer.
abstract: A simple near infrared grating spectrometer is described which employs a dry ice-cooled photomultiplier tube used in the pulse counting mode. Spectral data is recorded on punched paper tape enabling a large number of low intensity spectra to be averaged. The instrument is particularly useful for the study of weak near infrared airglow and auroral emissions from the upper atmosphere.
authors.forename: A W
authors.initials: AW
authors.lastname: Harrison
authors.forename: C
authors.initials: C
authors.lastname: Hansen
authors.forename: D W
authors.initials: DW
authors.lastname: Will