[1] [1] FARRUGIA C J, GEISS J, YOUNG D T, et al.. GEOS-1 observations of low-energy ions in the earth’s plasmasphere: a study on composition, and temperature and density structure under quiet geomagnetic conditions ［J］. Adv. Space. Res., 1988, 8: 25-33.

[2] [2] FARRUGIA C J, GEISS J, YOUNG D T, et al.. The composition, temperature and density structure of cold ions in the quiet terrestrial plasmasphere: GEOS-1 results ［J］. J. Geophys. Res., 1989, 94(A9):11865-11891.

[3] [3] NAKAMURA M, YOSHIKAWA I, YAMAZAKI A, et al.. Terrestrial plasmaspheric imaging by an extreme ultraviolet scanner on Planet-B ［J］. Geophys. Res. Lett., 2000, 27(2):141-144.

[4] [4] SANDEL B R, GOLDSTEIN J, GALLAGHER D L, et al.. Extreme ultraviolet imager observations of the structure and dynamics of the plasmasphere ［J］. Space. Sci. Rev., 2003, 109(1):25-46.

[5] [5] HE F, ZHANG X X, CHEN B, et al.. Calculation of the extreme ultraviolet radiation of the earth's plasmasphere ［J］. Sci. China Tech. Sci., 2010,53(1):200-205.

[6] [6] WELLER C S, MEIER R R. First satellite observations of the He+ 304- radiation and its interpretation ［J］. J. Geophys. Res., 1974, 79(10):1572-1574.

[7] [7] NAKAMURA M, YAMASHITA K, YOSHIKAWA I, et al.. Helium observation in the Martian ionosphere by an X-ray ultraviolet scanner on Mars orbiter NOZOMI ［J］. Earth Planets Space, 1999, 51:61-70.

[8] [8] YOSHIKAWA I, YAMAZAKI A, MURAKAMI G, et al.. Telescope of extreme ultraviolet (TEX) onboard SELENE: science from the Moon ［J］. Earth Planets Space, 2008, 60(4):407-416.

[9] [9] MURAKAMI G, YOHIKAWA I, OBABA Y, et al.. First sequential images of the plasmasphere from the meridian perspective observed by KAGUYA ［J］. Earth Planets Space, 2010, 62:9-12.

[10] [10] SANDEL B R, BROADFOOT A L, CURTIS C C, et al.. The extreme ultraviolet imager investigation for the image mission ［J］. Space Sci. Rev., 2000,91(1):197-242.

[11] [11] OBER D M, HORWITZ J L, GALLAGHER D L. Formation of density troughs embedded in the outer plasmasphere by subauroral ion drift events ［J］. J. Geophys. Res., 1997,102(A7): 595-602.

[12] [12] HE F, CHEN B, ZHANG X X, Moon-based imaging of the earth’s plasmaspheric extreme ultraviolet radiation［J］. Opt. Precision Eng., 2010,18(12):2564-2573. (in Chinese)

[13] [13] MEIER R R, WELLER C S. Extreme ultraviolet observations of the latitudinal variation of Helium［J］. J. Geophys. Res., 1974,79(10):1575-1758.

[14] [14] MEIER R R. Ultraviolet spectroscopy and remote sensing of the upper atmosphere［J］. Space Sci. Rev., 1991, 58:1-185.

[15] [15] NI Q L, LIU S J, CHEN B. Investigation on extreme ultraviolet photon-counting imaging detector with position-sensitive anode［J］. Chi J. Opt. App. Opt., 2009,2(1):36-40. (in Chinese)