A magnetic-bottle multi-electron-ion coincidence spectrometer

作者:Matsuda Akitaka; Fushitani Mizuho; Tseng Chien Ming; Hikosaka Yasumasa; Eland John H D; Hishikawa Akiyoshi*
来源:Review of Scientific Instruments, 2011, 82(10): 103105.
DOI:10.1063/1.3648133

摘要

A novel multi-electron-ion coincidence spectrometer developed on the basis of a 1.5 m-long magnetic-bottle electron spectrometer is presented. Electrons are guided by an inhomogeneous magnetic field to a detector at the end of the flight tube, while a set of optics is used to extract counterpart ions to the same detector, by a pulsed inhomogeneous electric field. This setup allows ion detection with high mass resolution, without impairing the high collection efficiency for electrons. The performance of the coincidence spectrometer was tested with double ionization of carbon disulfide, CS2 -> CS22+ + e(-) + e(-), in ultrashort intense laser fields (2.8 x 10(13) W/cm(2), 280 fs, 1030 nm) to clarify the electron correlation below the rescattering threshold.

  • 出版日期2011-10