Skip to main content

NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dual-CGH Interferometry Test for X-Ray Mirror Mandrels

Published

Author(s)

Guangjun Gao, John Lehan, Ulf Griesmann

Abstract

We describe a glancing-incidence interferometric double-pass test, based on a pair of computer generated holograms (CGHs), for mandrels used to fabricate x-ray mirrors for space-based x-ray telescopes. The design of the test and its realization are described. The application illustrates the advantage of dual-CGH tests for the complete metrology of precise optical surfaces.
Proceedings Title
Optical Measurement Systems for Industrial Inspection
Volume
7389
Conference Dates
June 15-18, 2009
Conference Location
Muenchen, DE
Conference Title
SPIE Europe Optical Metrology

Keywords

Interferometry, optical test, computer-generated hologram, x-ray telescope optics

Citation

Gao, G. , Lehan, J. and Griesmann, U. (2008), Dual-CGH Interferometry Test for X-Ray Mirror Mandrels, Optical Measurement Systems for Industrial Inspection, Muenchen, DE, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902515 (Accessed October 11, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created June 14, 2008, Updated October 12, 2021
Was this page helpful?