%0 Journal Article
	%A Tian Kai and  Yang Sheng-sheng and  Li De-tian and  Miao Yu-jun and  Xue Yu-xiong Wang Yi and  Yan Ze-dong and  Ma Ya-li and  ZHuang Jian-hong
	%D 2012
	%J International Journal of Physical and Mathematical Sciences
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 71, 2012
	%T Experiment Study on the Plasma Parameters Measurement in Backflow Region of Ion Thruster
	%U https://publications.waset.org/pdf/7543
	%V 71
	%X The charge-exchange xenon (CEX) ion generated by ion thruster can backflow to the surface of spacecraft and threaten to the safety of spacecraft operation. In order to evaluate the effects of the induced plasma environment in backflow regions on the spacecraft, we designed a spherical single Langmuir probe of 5.8cm in diameter for measuring low-density plasma parameters in backflow region of ion thruster. In practice, the tests are performed in a two-dimensional array (40cm×60cm) composed of 20 sites. The experiment results illustrate that the electron temperature ranges from 3.71eV to 3.96eV, with the mean value of 3.82eV and the standard deviation of 0.064eV. The electron density ranges from 8.30×1012/m3 to 1.66×1013/m3, with the mean value of 1.30×1013/m3 and the standard deviation of 2.15×1012/m3. All data is analyzed according to the “ideal" plasma conditions of Maxwellian distributions.

	%P 1561 - 1564