High-accuracy X-ray foil optic assembly

Glen P. Monnelly, Olivier Mongrard, David Breslau, Nathaniel Butler, Carl G. Chen, Lester Cohen, Wendy Gu, Ralf K. Heilmann, Paul T. Konkola, George R. Ricker, Mark L. Schattenburg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Achieving arcsecond angular resolution in a grazing-incidence foil optic X-ray telescope, such as the segmented mirror approach being considered for the Constellation-X Spectroscopy X-Ray Telescope (SXT), requires accurate placement of individual foils. We have developed a method for mounting large numbers of nested, segmented foil optics with sub-μm accuracy using lithographically defined and etched silicon alignment micro-structures. A system of assembly tooling, incorporating the silicon micro-structures, is used to position the foils which are then bonded to a flight structure. The advantage of this procedure is that the flight structure has relaxed tolerance requirements while the high accuracy assembly tooling can be reused. A companion paper by Bergner et al. discusses how our process could be used for the SXT. We have built an assembly truss with a simplified rectilinear geometry designed to experimentally test this alignment and mounting technique. We report results of tests with this system that demonstrate its ability to provide sub-μm alignment of rigid test optics.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages164-173
Number of pages10
Volume4138
DOIs
StatePublished - 2000
Externally publishedYes
EventX-Ray Optics, Instrumants, and Missions IV - San Diego, CA, USA
Duration: Jul 30 2000Jul 31 2000

Other

OtherX-Ray Optics, Instrumants, and Missions IV
CitySan Diego, CA, USA
Period7/30/007/31/00

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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