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  • 32  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    Magnetic hyperfine spectrum of isolated (199Hg)+ Ions (1978)
    Springer
    Applied physics 15 (1978), S. 201-208 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 32 ; 35
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract The (199Hg)+ ions were stored in an RF quadrupole electric field and their ground state hyperfine populations pumped optically using the ion resonance radiation at 1942 Å from a (202Hg) isotope enriched lamp. A microwave field at 40.5 GHz was phase-locked to the 1350th harmonic of the output of a frequency synthesizer, referenced to a Cs-beam frequency standard. Using a digital averager, a high background suppression optical system monitored the fluorescence light from the ions. Linewidths on the order of 3 Hz were observed for the “field-independent” 0-0 transition, and a value of 40, 507, 348, 051±50 Hz was deduced for the magnetic hyperfine interval, corrected to zero magnetic field.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00928209
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    On the sensitivity of ion traps for spectroscopic applications (1979)
    Springer
    Applied physics 20 (1979), S. 295-298 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 07.65 ; 32
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract Ba+ ions, created by surface ionization near one endcap of an rf quadrupole trap were slowed down by collisions with the background gas. At He pressures of 10−6 mbar or more 2% of the primary ions could be trapped. The sensitivity of ion detection by fluorescence radiation allows spectroscopic experiments, starting from less than 107 particles. The observation of the ground-state hyperfine splitting of137Ba+ is given as an example.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00894999
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
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