USA flag logo/image

An Official Website of the United States Government

Bismuth Hall Thruster Contamination Characterization and Mitigation

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
86926
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
F081-062-0580
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
PLASMA CONTROLS, LLC
1180 La Eda Lane Fort Collins, CO 80526-4415
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Bismuth Hall Thruster Contamination Characterization and Mitigation
Agency / Branch: DOD / USAF
Contract: FA9300-08-M-3007
Award Amount: $99,992.00
 

Abstract:

Hall thrusters operated with bismuth propellant provide performance and cost advantages over devices operated with xenon propellant. However, bismuth propellant also has the potential to transport onto, and contaminate, spacecraft surfaces. Before the promise of bismuth thrusters can be exploited, the threat of contamination must be (1) quantified by Air Force (AF) modelers and (2) found to be mitigate-able. Before starting, the modelers require data on bismuth neutral and ion properties like condensation probability, sputter yield, charge exchange cross section, etc., as a function of energy, angle of incidence, surface material, etc. Other necessary data include the effects of bismuth film thickness on the optical properties (i.e., solar absorptivity and hemispherical emissivity) of cover glass, radiators, and Kapton blankets for example. Plasma Controls, LLC proposes to meet these AF needs through the development of robust plasma diagnostic tools that can operate in plasmas containing condensable conductive constituents. Our approach is to use an existing bismuth ion source along with existing vacuum chamber test facilities, sputter deposition tools, thin-film characterization instruments, and related support equipment of our collaborator, Colorado State University, to develop and test the proposed Plasma Controls diagnostic equipment and obtain preliminary bismuth data required by the Air Force.

Principal Investigator:

Casey C. Farnell
Principal Investigator
9705812239
Casey.Farnell@plasmacontrols.com

Business Contact:

Casey C. Farnell
President, Plasma Controls, LLC
9705812239
Casey.Farnell@plasmacontrols.com
Small Business Information at Submission:

PLASMA CONTROLS, LLC
1180 La Eda Lane Fort Collins, CO 80526

EIN/Tax ID: 261535334
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No