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  • 1970-1974  (4)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    A new method for the production of atomic beams of highly refractory elements and first atomic beam magnetic resonances in Ta181 (1970)
    Springer
    The European physical journal 230 (1970), S. 329-336 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new universal method for the production of atomic beams of highly refractory elements has been developed. The beams of free atoms are produced by locally heating a small area on a target consisting of the material to be evaporated. The local heating is achieved via the focussed electron beam of a commercial electron gun. The atomic beams so obtained are suitable for studying hyperfine structures by the atomic beam magnetic resonance method. The first observedrf resonances in the ground state4 F 3/2 and the first excited state4 F 5/2 of Ta181 are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01403122
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Atomic beam magnetic resonance investigations in the 2p 2 3 P ground multiplet of the stable carbon isotopes12C and13C (1970)
    Springer
    The European physical journal 236 (1970), S. 337-351 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure seperations Δv andg J -factors have been measured in the 2p 2 3 P states of13C(I=1/2) and12C(I=0), respectively, using the atomic beam magnetic resonance method. The results are Δv(3 P 1,13C)=4.200 (25) MHz, Δv(3 P 2,13C)=372.593 (25) MHz,g J (3 P 1,12C)=1.501052 (13), andg J (3 P 2,12C)=1.501039 (15). After applying corrections due to perturbations by neighbouring fine structure levels one deduces the constants of the magnetic dipole interactionA(3 P 1,13C)=+2.838 (17) MHz, A(3 P 2,13C)=+149.055 (10) MHz. No signs of theA-factors were determined by the experiment; they follow from the known positive sign of the nuclear magnetic moment μ I of13C. CombiningA(3 P 2,13C) with the results of other measurements on11C, yields μ I (11C)=−0.964 (1) nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402403
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The hyperfine structure of the ground state of Ho165 (1972)
    Springer
    The European physical journal 252 (1972), S. 412-420 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method four hyperfine structure frequencies have been measured in the ground state4 I 15/2 of Ho165 with high precision at magnetic fields of up to 800 Oersted. In the analysis of these measurements a possible electrical sedecimpole (16-pole) interaction was included. The following multipole interaction constants could be calculated:A=800.582 8 (14) MHzB=−1668.100 (91) MHzC=−2224 (7520) HzD=−398 (790) Hz. Thus within the limits of this experiment no octopole or sedecimpole interaction could be established.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379734
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Direct measurement of the nuclear magnetic dipole moment of Ho165 with the atomic beam magnetic resonance method (1972)
    Springer
    The European physical journal 252 (1972), S. 421-427 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract With an atomic beam magnetic resonance apparatus four rf transitions between different Zeeman levels of the4 I 15/2 ground state of Ho165 have been measured in an external magnetic field of about 3000 Gauss. The interaction between the nuclear magnetic dipole moment and the external field could be deduced from these measurements. Because the magnetic field was measured by calibration transitions in K39, Rb85 and Rb87, the following value could be determined for the nuclear magnetic dipole moment: μ I (Ho165)=4.094(44) μ n (uncorrected for diamagnetic shielding). Thegj-factor of the ground state of Ho165 was measured to begj(4 I 15/2, Ho165)=1.1951445(40).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379735
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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