Technological developments of the OGRE focal plane array
- James H. Tutta, Randall L. McEntaffera, +8 authors David Farnd
High groove density reflection gratings placed at grazing incidence in the extreme off-plane mount offer increased performance over conventional in-plane mounts in the x-ray. We present initial off-plane efficiency test results from the grating evaluation facility at the University of Colorado. The test gratings are holographically ruled, ion-etched gratings with radial groove profiles that were developed and fabricated by Jobin-Yvon Inc.