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Figure Measurements of High-Energy-X-Ray Replicated OpticsWe are developing grazing incidence x-ray optics for a balloon-borne hard-x-ray telescope (HERO). The HERO mirror shells are fabricated using electroform-nickel replication off super-polished cylindrical mandrels. One of the sources for mirror resolution error is departure of the shell figure from prescription. We have modified a Vertical-scan Long Trace Profilometer (VLTP) in order to measure the figure of the inner surface of the HERO mirror shells for diameters as small as 76 mm. Mirror alignment method and sources for systematic errors will be discussed. Comparison of figure metrology of the mandrel and the shells will be presented together with results from x-ray tests.
Document ID
20030068899
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Gubarev, Mikhail
(Universities Space Research Association Huntsville, AL, United States)
Ramsey, Brian
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Kester, Thomas
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Engelhaupt, Darell
(Alabama Univ. Huntsville, AL, United States)
Speegle, Chet
(Raytheon Information Technology and Scientific Services Huntsville, AL, United States)
Martin, Greg
(Erc International, Inc. Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Optics
Meeting Information
Meeting: Optics for EUV, X-Ray, and Gamma-Ray Astronomy
Location: San Diego, CA
Country: United States
Start Date: August 3, 2003
End Date: August 8, 2003
Distribution Limits
Public
Copyright
Other

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