A mathematical model of jet expansion inside vacuum chamber for plasma accelerator

Аuthors

Toropov G. P., Khartov S. A.^*

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: skhartov@ya.ru

Abstract

A mathematical model and calculation of gas distribution results is presented for jet expansion inside vacuum chamber of operating plasma accelerator. A numerical reconstruction is carried out for spatial distribution of ionic current in the jet subject to a charge — exchange process provided with interactions between accelerated ions and residual gas inside of the vacuum chamber. A thrust of the accelerator is estimated basing on corrected measurement and calculation results for the ionic currents.