Investigation an influence of SPT magnetic field on efficiency of cathode-compensator operation

Аuthors

Gnizdor R. Y.¹, Mitrofanova O. A.^1*, Rumyantsev А. V.^2**

1. Experimental Design Bureau “Fakel”, 181, Moskovsky av, Kaliningrad, 236001, Russia
2. Immanuel Kant Baltic Federal University, IKBFU, 14, A. Nevskogo str., Kaliningrad, 236041, Russia

*e-mail: info@fakel-russia.com
**e-mail: albert37@list.ru

Abstract

In this paper it is investigated an influence of magnetic field characteristics (parameters and topology) of SPT periphery using SPT-100 thruster model on efficiency of cathode-compensator operation while the cathode is translated. During investigations the comparison results of experiments and calculations suggests influence on efficiency of cathode-compensator operation not only magnetic field topology, but also magnetic field induction in cathode position. It is founded a correlation between magnetic field induction in cathode position and thruster performance. It is determined assumptive magnetic field induction less as 3 mTl in cathode position for maintenance of a high efficiency of cathode-compensator operation.

Keywords:

stationary plasma thruster (SPT), cathode-compensator, topology of magnetic field, magnetic field, cathode coupling voltage (Uкз), 3D-calculations of magnetic field.