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Single and Multi-Pulse Low-Energy Conical Theta Pinch Inductive Pulsed Plasma Thruster Performance
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Author and Affiliation:
Hallock, Ashley K.(Yetispace, Inc., Huntsville, AL, United States);
Martin, Adam(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Polzin, Kurt(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Kimberlin, Adam(NASA Marshall Space Flight Center, Huntsville, AL, United States);
Eskridge, Richard(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: Fabricated and tested CTP IPPTs at cone angles of 20deg, 38deg, and 60deg, and performed direct single-pulse impulse bit measurements with continuous gas flow. Single pulse performance highest for 38deg angle with impulse bit of approx.1 mN-s for both argon and xenon. Estimated efficiencies low, but not unexpectedly so based on historical data trends and the direction of the force vector in the CTP. Capacitor charging system assembled to provide rapid recharging of capacitor bank, permitting repetition-rate operation. IPPT operated at repetition-rate of 5 Hz, at maximum average power of 2.5 kW, representing to our knowledge the highest average power for a repetitively-pulsed thruster. Average thrust in repetition-rate mode (at 5 kV, 75 sccm argon) was greater than simply multiplying the single-pulse impulse bit and the repetition rate.
Publication Date: Apr 29, 2013
Document ID:
20130014226
(Acquired Aug 02, 2013)
Subject Category: SPACECRAFT PROPULSION AND POWER
Report/Patent Number: M13-2607
Document Type: Oral/Visual Presentation
Meeting Information: 60th JNNAF Joint Propulsion Subcommittee Meeting; 29 Apr. - 3 May 2013; Colorado Springs, CO; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: Yetispace, Inc.; Huntsville, AL, United States
Description: 11p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: ARGON; CONICAL BODIES; CONTINUUM FLOW; GAS FLOW; IMPULSES; PULSE REPETITION RATE; PULSED PLASMA THRUSTERS; THETA PINCH; XENON
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