Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Die Hyperfeinstruktur der Ba II-Resonanzlinien und die Quadrupolmomente der ungeraden Bariumisotope (1968)
    Springer
    The European physical journal 216 (1968), S. 142-152 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract By means of a photoelectric registrating Fabry-Pérot-interferometer and using enriched Ba-isotopes the hyperfine structure of the barium II-resonance lines 6p 2 P 3/2,1/2-6s 2 P 1/2,λ λ4554; 4934 å has been investigated. The following results were obtained by digital data processing of the registrated interference curves:A(135Ba, 6s 2 S 1/2)=119.78(10) mK,A(137Ba, 6s 2 S 1/2)=133.94(11) mK,A(135Ba, 6p 2 P 1/2)=22.14 (8) mK,A(135Ba, 6p 2 P 3/2)=3.77(7) mK, andB(135Ba, 6p 2 P 3/2)=2.1 (3) mK. For the quadrupole moment of135Ba we calculated the valueQ(135Ba)=0.17(2) · 10−24 cm2 (without Sternheimer correction). This result should not be strongly affected by perturbations in thep-terms of alcalilike spectra of heavy elements and by the uncertainty of the relativistic corrections. The isotope shift of the odd Ba-isotopes with respect to138Ba has been remeasured.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01390954
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Isotope shift in the resonance lines of the arc spectrum of133Cs,135Cs, and137Cs (1967)
    Springer
    The European physical journal 199 (1967), S. 239-243 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Reactor Cs and mixtures of electromagnetically enriched Cs were used to investigate the isotopic shift of the two resonance lines. By a digital evaluation method anomalies in the isotope shift were found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01326433
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Rumpfpolarisation des 4d 9 5s 22 D-Zustandes von Ag I (1970)
    Springer
    The European physical journal 238 (1970), S. 249-257 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure of the transition Ag I, 4d 9 5s 22 D 3/2-4d 105p 2 P 1/2, λ=19,372 Å has been investigated by means of a photoelectrically recording Fabry-Pérot interferometer using separated isotopes. Evaluating the hfs-pattern by a digital analysis the following values for the magnetic dipole interaction constants have been obtained: $$A_{3/2}^{(109)} (d^9 5s^2 ) = - 12.11(6)mK; A_{1/2}^{(109)} (d^{10} 5p) = - 6.72(10)mK.$$ Using the knownA-factor of the other level of the configurationd 9 s 2 and the values of the Ms anomalies of the levelsd 9 s 22 D 5/2 andd 10 s 2 S 1/2 together with our result, the influence of the core polarization on theA-factors of the configurationd 9 s 2 is discussed. Assuming that the used relativistic correction factors are correct, the influence of the core polarization cannot be due only to the unpaireds-electrons of the core, but must be described by the three-parameter hfs-Hamiltonian given by Harvey. Consequences for calculating the quadrupole moments from hfs data are mentioned.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01398038
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Isotope shift measurements in the atomic spectrum of lanthanum (LaI) (1974)
    Springer
    The European physical journal 269 (1974), S. 245-252 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the reactor-produced lanthanum isotope 57 137 La, the highly enriched rare 57 138 La and the stable 57 139 La, the isotope shift has been measured in five lines of the La I-spectrum with the aid of a pressure-scanned Fabry-Pérot interferometer. The isotope shift data obtained show surprisingly large specific mass effects, arising from configuration mixing of levels with a 4f electron involved. The changes in mean square charge radiusδ〈r 2〉 of these nuclei extracted from the experimental isotope shift constants Cexp are compared with the corresponding values for the isotonic barium nuclei, where similar anomalies in the isotope shifts occur.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01668689
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Isotopieverschiebung der Bariumnuklide140Ba,138Ba,136Ba und134Ba in der Ba II-Resonanzlinie 6p 2 P 1/2-6s 2 S 1/2 (1974)
    Springer
    The European physical journal 267 (1974), S. 209-217 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The radioactive barium nuclide140Ba (T 1/2=12.8 d) has been separated chemically from fission products of uranium. The scheme of the carrier-free separation is described. The isotope shift in the barium II resonance line 6p 2 P 1/2-6s 2 S 1/2,λ=4934 Å has been measured by means of a pressure scanned Fabry-Pérot interferometer. The resultΔv(140Ba-138Ba)=−39.3 (3.2)mK has been used together with the remeasured isotope shift values of138Ba,136Ba, and134Ba to calculate the change of the mean square radius of the nuclear charge distributionδ〈r 2〉. The results are compared with data for isotonic nuclides of neighbouring elements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01669222
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Isotope shifts in the atomic spectrum of xenon and nuclear deformation effects (1974)
    Springer
    The European physical journal 270 (1974), S. 113-120 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Optical isotope shifts of four lines in the atomic spectrum of xenon have been measured using enriched samples of all stable xenon isotopes. The spectrograms were recorded with the aid of a pressure-scanned Fabry-Pérot interferometer and analysed by digital data techniques. The measured isotope shifts are shown to be self-consistent by means of a King plot. An estimate of the specific mass effect is given and the changesδ 〈r 2〉 of the mean square radius of the nuclear charge distribution are extracted from the measured shifts. These changesδ 〈r 2〉 are discussed in terms of the nuclear deformation parameterβ 2. The results for the deformation of the stable even xenon isotopes are shown to be in good agreement with the systematic of deformation found for the neighbouring elements from Coulomb excitation experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01677442
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Optische Untersuchung der Hyperfeinstruktur einiger La I-Linien und Interpretation der gemessenenA-Faktoren (1971)
    Springer
    The European physical journal 248 (1971), S. 53-60 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Several La I transitions were investigated by means of optical interference spectroscopy. AllA-values of the levels of the configuration 5d 6s 6p withJ=9/2, 7/2, and 5/2 were measured. Applying sum rules, the one-electrona-valuea 6s (5d 6s 6p) was derived. It is shown that a promising interpretation of the measuredA-values cannot be done without properly considering core-polarization and configuration interaction with adjacent configurations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01394835
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    High resolution spectroscopy of the transition 5d2D3/2→6p2P 3 2/0 in a fast Ba+ ion beam (1978)
    Springer
    The European physical journal 284 (1978), S. 261-265 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the “velocity bunching” effect occurring in beam direction of a fast ion beam the hyperfine structure of the Ba II transition 5d2D3/2→6p2P 3 2/0 has been investigated by means of a laser absorption experiment. From a mass separated137Ba+ beam we have obtained hyperfine dipole and quadrupole splitting factors A and B and from a not mass separated Ba+ beam isotope shift data as well as A and B values. The results are A(5d2D3/2) =5.696(24) mK, A(6p2P 3 2/0 )=3.759(27) mK, B(5d2D3/2)=1.01(4) mK, B(6p2P 3 2/0 ) =2.07(4) mK. Values for the isotope shifts are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01406795
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Nuclear moments and optical isotope shift of133Xe (1978)
    Springer
    The European physical journal 285 (1978), S. 229-230 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408751
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Observation ofΔF=±2 transitions in the hyperfine structure of139La II 5d 2 3 F 4→5d4f 3 F 4 0 (1980)
    Springer
    The European physical journal 295 (1980), S. 1-5 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure of the139La II line 5d 2 3 F→5d4f 3 F 4 0 atλ=579.8 nm has been investigated by means of collinear laser spectroscopy on a fast La+ beam. AmongΔF=0, ±1 hyperfine transitions,gDF=±2 transitions have been observed. An interpretation of theseΔF=±2 transitions as well as their relative line strengths is given by means of a three-quantum process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01414292
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...