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  • 1
    Electronic Resource
    Electronic Resource
    Thomas-Fermi theory for the ion cloud in the trap (1989)
    Springer
    The European physical journal 14 (1989), S. 1-8 
    Details
    ISSN: 1434-6079
    Keywords: 31.20.Lr ; 32.80.Pj ; 52.25.Wz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using Thomas-Fermi Theory, we deal with the motion of a trapped ion cloud with conserved total angular momentum in thermal equilibrium at zero temperature. It is shown that in the case of high magnetic field (≧600 kG) the motion of an electron cloud trapped in a Penning trap would be modified by quantum effects. Under the present laboratory conditions the quantum effects are negligible for the motion of a Mg+24 ion cloud trapped in a Paul trap.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401336
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  • 2
    Electronic Resource
    Electronic Resource
    Collisional relaxation measurements on Pb+ hyperfine levels (1993)
    Springer
    The European physical journal 25 (1993), S. 103-105 
    Details
    ISSN: 1434-6079
    Keywords: 31.70.Hq ; 32.80.Bx ; 32.80.Pj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The time constants for population relaxation of optically pumped Pb+ ions in a Paul ion trap have been determined in a He buffer gas atmosphere with additional components of other gases. For the 6P 1/2 ground state of Pb+ and an ion temperatur of 104 K we find cross sections of 0.72(0.33)·10−17 cm2; 0.59(0.38)·10−15 cm2; and 2.56(0.74)·10−14 cm2 for He, N2 and O2, respectively. The error includes an estimated 20% uncertaincy in the pressure calibration of a residual gas analyser.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01450160
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    Paper (German National Licenses)
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