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Low-Stress Iridium Coatings for Thin-Shell X-Ray Telescopes

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
90656
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
085017
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Reflective X-ray Optics, LLC
1361 Amsterdam Avenue, Suite 3B New York, NY 10027-2589
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2009
Title: Low-Stress Iridium Coatings for Thin-Shell X-Ray Telescopes
Agency: NASA
Contract: NNX09CD57P
Award Amount: $100,000.00
 

Abstract:

We propose to develop and commercialize a new type of low-stress iridium (Ir) X-ray mirror coating technology that can be used for the construction of high-resolution X-ray telescopes comprising thin-shell mirror substrates, such as the Soft X-ray Telescope (SXT) currently being developed for the Constellation-X mission. The urgent need for low-stress Ir coating technology is driven by the current limitations on telescope angular resolution resulting from substrate distortions caused by conventional reflective Ir coatings that have high stress. In particular, we have measured film stresses in excess of 3 GPa in the case of 30 nm Ir films deposited by conventional magnetron sputtering techniques. The distortions in thin glass mirror shells (such as those suitable for the Constellation-X SXT) resulting from these extremely large coating stresses presently make the largest contribution to the SXT telescope imaging error budget, of order 10 arcsec or more. Consequently, it will be difficult, if not impossible, to meet the imaging requirements of Constellation-X, or other future high-resolution X-ray missions, unless high-quality Ir coatings having significantly lower stresses can be developed. The development of such coatings is precisely the aim of our proposal.

Principal Investigator:

David L. Windt
Principal Investigator
2126784932
davidwindt@gmail.com

Business Contact:

David L. Windt
President
2126784932
davidwindt@gmail.com
Small Business Information at Submission:

Reflective X-ray Optics, LLC
1361 Amsterdam Avenue, Suite 3B New York, NY 10027

EIN/Tax ID: 201910234
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No