Electron Impact Excitation of Positive Ions: Application to Ca+ 4s-4p and 3d-4p
نویسندگان
چکیده
منابع مشابه
Frequency metrology on the 4s S1Õ2–4p P1Õ2 transition in Ca for a comparison with quasar data
High accuracy frequency metrology on the 4s S1/2–4p P1/2 transition in calcium ions is performed using laser cooled and crystallized ions in a linear Paul trap. Calibration is performed with a frequency comb laser, resulting in a transition frequency of f =755 222 766.2 1.7 MHz. The accuracy presents an improvement of more than one order of magnitude, and will facilitate a comparison with quasa...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1960
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/121.2.213