Dust charging and levitating in a sheath of plasma containing energetic particles Project supported by the National Natural Science Foundation of China (Grant No. 11475223), the National Magnetic Confinement Fusion Science Program of China (Grant No. 2015GB101003), and the JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (Grant Nos. 11261140328 and 2012K2A2A6000443). |
(color online) Normalized sheath potentials, respectively, as a function of (a) energetic electron concentration and energy and (b) energetic electron concentration and temperature of background ions with βe,2 = 50. |