title: Fabrication of transmission gratings for use in cosmic x-ray and XUV astronomy.
abstract: The manufacturing process of open transmission gratings with high efficiency and high line density is described. This process is developed by Dr. Johannes Heidenhain GmbH in cooperation with the Max- Planck-Institut and involves two steps, the mechanical ruling of the original master and the photochemical replication of the individual grating facets. The freestanding transmission grating is added by a regular support structure obstructing about one-third of the grating area. For application in space astronomy, gratings have been subjected to vibration and acoustic-noise tests.
authors.forename: H
authors.initials: H
authors.lastname: Bräuninger
authors.forename: H
authors.initials: H
authors.lastname: Kraus
authors.forename: H
authors.initials: H
authors.lastname: Dangschat
authors.forename: K P
authors.initials: KP
authors.lastname: Beuermann
authors.forename: P
authors.initials: P
authors.lastname: Predehl
authors.forename: J
authors.initials: J
authors.lastname: Trümper