title: Concerning the instrumental profile of a double monochromator.
abstract: The response of a monochromator to an intense line, the so-called instrumental profile or slit function, is studied over a range of signals comprising seven orders of magnitude, which corresponds to a maximum frequency shift of about five times the slit width. For a 1-m double monochromator with concave, holographic gratings, the observed profile is approximately described by diffraction theory except for the extreme wings.
authors.affiliation: Physics Department and Electronics Research Center, The University of Texas at Austin, Austin, Texas 78712.
authors.forename: M H
authors.initials: MH
authors.lastname: Proffitt
authors.forename: L
authors.initials: L
authors.lastname: Frommhold