NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 S1.05-8972
SUBTOPIC TITLE: Detector Technologies for UV, X-Ray, Gamma-Ray and Cosmic-Ray Instruments
PROPOSAL TITLE: Blocking filters with enhanced throughput for x-ray microcalorimetry

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Luxel Corporation
515 Tucker Ave.
Friday Harbor, WA 98250 - 1879
(360) 378-4137

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Mark G Hagen
515 Tucker Ave.
Friday Harbor, WA 98250 - 1879
(360) 378-4137

Expected Technology Readiness Level (TRL) upon completion of contract:

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
X-ray microcalorimeters have developed to provide unprecedented energy resolution and signal sensitivity. To take maximum advantage of the microcalorimeter's performance, a new and improved blocking filter stack is needed to further enhance low level sensitivity and mission throughput. The innovation proposed, high transmission polyimide support mesh fabricated using photolithography, will replace the nickel mesh used in previous blocking filter designs. The proposed mesh will be thinner than known comparable supports and will be produced freestanding such that it can be readily combined with filter foils of all types. The polyimide mesh will demonstrate at least 10% higher transmission than nickel at all energies, and will become essentially transparent above 3 keV. Mesh structures will be fabricated using three different photolithographic processes and compared both freestanding and in combination with filter foils to determine feasibility. The proposed innovation along with thinner materials will improve mission throughput and effective area significantly for microcalorimeter payloads on proposed Small Explorer missions, NeXT, and Spectrum-X-Gamma in the near term as well as Constellation –X.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Enhanced filter throughput is needed technology to meet NASA's Universe and Sun-Earth Connection program goals. The availability of x-ray filters incorporating new high-transmission polyimide mesh would dramatically enhance stacked filter specifications, such as the blocking filters for x-ray microcalorimeter spectrometers proposed for Spectrum X Gamma, NeXT, new Small Explorers, and Constellation-X, particularly for observations at higher energies. Lower energy x-ray filters and EUV filters would benefit from the increase in overall transmittance from the proposed geometry of the mesh. Extremely thin carbon or polyimide foils used in ENA MCP detectors and time of flight spectrometers would be improved with a strong support that minimizes shadowing.


POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Extreme ultraviolet and x-ray filters for the GOES satellite series.
Thermal barrier windows for laboratory-based astrophysics using x-ray microcalorimeters.
Windows for energy dispersive spectroscopy (EDS) systems used with scanning electron microscopy as well as calorimeter-based EDS systems.
New support mesh for zirconium pellicles used in extreme ultraviolet lithography (EUVL).

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Optical & Photonic Materials

Form Generated on 09-18-07 17:50