A High Performance Cathode Heater for Hall Thrusters

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CD16P
Agency Tracking Number: 075351
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: S3.04
Solicitation Number: N/A
Small Business Information
Sienna Technologies, Inc.
19501 144th Avenue NE, Suite F-500, Woodinville, WA, 98072-4423
DUNS: 015577190
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Ender Savrun
 Principal Investigator
 (425) 485-7272
Business Contact
 Ender Savrun
Title: Business Official
Phone: (425) 485-7272
Email: ender.savrun@siennatech.com
Research Institution
High current hollow cathodes are the baseline electron source for next generation high power Hall thrusters. Currently for electron sources providing current levels >50 A and cathodes utilizing LaB6 emitters, the only viable, long life heater technology is a low reliability, low producibility, multi-element heater constructed from MgO insulated coaxial heater cable. In the Phase I project we will develop novel insulator materials to replace MgO that can provide high temperature capability, with good thermal conductivity and electrical isolation. We will design, fabricate, and test prototype swaged coaxial heaters incorporating the novel insulators, in collaboration with a heater manufacturer and an end user aerospace company.

* information listed above is at the time of submission.

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