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New High-Intensity Spectral Source with a Narrow Line Profile
Volume 22, Number 5 (Oct. 1968) Page 581-582
van Gelder, Z.
In absorption measurement techniques a spectral source is desired that has a resonance spectral line of high intensity. This spectral line must have a profile as narrow as possible without self-absorption. Different solutions of the problem in which a hollow cathode is used are given in the literature.