Plasma plume diagnostics of low power stationary plasma thruster (SPT-20M8) with collisional radiative model

Rajput, Rajendrasing; Alona, Khaustova; Loyan, A.V.

doi:10.1051/epjap/2017160348

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…Moreover, the saturation process at the discharge voltage V 1 = 150 V can also be observed, as the emission intensity increases with increasing mass flow rates until it reaches a plateau at higher mass flow rates. It is worth noting that OES combined with a collisional-radiative model (CRM) for Xe and Kr can provide information about the electron temperature and density in the plumes of Hall thrusters [34][35][36][37] and cathodes [38,39]. Real-time OES at high acquisition frequencies may be employed for cathode mode transition monitoring and offer insights on changes in plasma properties during the transition from spot to plume and vice versa.…”

Section: Plasma Diagnostics For Electric Propulsion Systemsmentioning

confidence: 99%

A Review of Low-Power Electric Propulsion Research at the Space Propulsion Centre Singapore

et al. 2020

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The age of space electric propulsion arrived and found the space exploration endeavors at a paradigm shift in the context of new space. Mega-constellations of small satellites on low-Earth orbit (LEO) are proposed by many emerging commercial actors. Naturally, the boom in the small satellite market drives the necessity of propulsion systems that are both power and fuel efficient and accommodate small form-factors. Most of the existing electric propulsion technologies have reached the maturity level and can be the prime choices to enable mission versatility for small satellite platforms in Earth orbit and beyond. At the Plasma Sources and Applications Centre/Space Propulsion Centre (PSAC/SPC) Singapore, a continuous effort was dedicated to the development of low-power electric propulsion systems that can meet the small satellites market requirements. This review presents the recent progress in the field of electric propulsion at PSAC/SPC Singapore, from Hall thrusters and thermionic cathodes research to more ambitious devices such as the rotamak-like plasma thruster. On top of that, a review of the existing vacuum facilities and plasma diagnostics used for electric propulsion testing and characterization is included in the present research.

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