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  • 1
    Digitale Medien
    Digitale Medien
    High resolution photofragment spectroscopy of the gas phase methyl iodide ion (1989)
    Springer
    The European physical journal 13 (1989), S. 61-67 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 33.20.K ; 33.80.G ; 36.90
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Photodissociation spectra of the molecular ion CH3I+ were obtained with a three stage quadrupole mass spectrometer. Starting from the $$\tilde X^2 E_{3/2} $$ ground state, theà 2 E 1/2 state was excited with a stilbene 3 cw dye laser. This state predissociates to CH + 3 +I. Measuring the intensity of the CH + 3 fragment ions as a function of the wavelength of the exciting laser, a spectrum showing vibrational and rotational structure was obtained. The vibrational structure was assigned to three progressions ofv 3 and new vibrational frequencies were determined. From a computer simulation of the (0, 1, 10) band rotational constants were derived. In particular, their dependence on the vibrationv 3 was studied.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01437344
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Testing atomic structure theories with high accuracy mass measurements on highly charged ions (2000)
    Springer
    Hyperfine interactions 127 (2000), S. 271-276 
    Details
    ISSN: 1572-9540
    Schlagwort(e): atomic structure ; mass measurements ; Penning trap
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The mass of a highly charged ion is the sum of the mass of the nucleus, the mass of the electrons and the electronic binding energies. High accuracy mass measurements on highly charged ions in a sequence of different charge states yield informations on atomic binding energies, i.e., the ionisation potentials. In our contribution we discuss the possibility of determining atomic binding energies of highly charged ions to better than 20 eV via cyclotron frequency measurements in a Penning trap. At this level of accuracy different contributions to the binding energies, like relativistic corrections, Breit corrections and QED corrections, can be measured.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1012664205870
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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