Absolute electron-impact ionization cross section measurements using a magneto-optical trap.
نویسندگان
چکیده
We present a new method for measuring absolute total electron-impact ionization cross sections. The technique measures fractional loss rates from a magneto-optical trap due to electron-impact ionization. The method requires only relative measurements of the number of target atoms and therefore eliminates a major source of difficulty in previous experiments. We report total ionization cross sections of Rb for electron energies from 50 to 500 eV. [S0031-9007(96)00306-7]
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ورودعنوان ژورنال:
- Physical review letters
دوره 76 23 شماره
صفحات -
تاریخ انتشار 1996