1. Physics Department, Chaohu College, Chaohu 238000，China 2. Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China 3. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
Abstract：Using flat-field grating Spectrometer, the ions lines with wavelength between 5 and 60 nm were measured, which were produced by the interaction of circularly polarized 35 femtosecond ultraintense and ultrashort laser-pulse with 5 mm length xenon at the pressure 2 and 3 kPa respectively. The highest transition is the XeⅧ：4d105s(2S1/2)—4d95s5p(2P3/2) line at wavelength 17.085 6 nm at 2 kPa and 3 kPa, the highest transition is 11.343 nm line of XeⅦ 4d105s2(1S0)—4d95s25f(3P1) transition. The xenon is ionized to XeⅦ，XeⅧ and XeⅨ at both pressure.
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