GLORIA

GEOMAR Library Ocean Research Information Access

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
Filter
  • Springer  (44)
  • 1
    Electronic Resource
    Electronic Resource
    Optical pumping of short lived Β-radioactive isotopes and the magnetic moment of37K (1969)
    Springer
    The European physical journal 226 (1969), S. 297-327 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract 21Na (T 1/2=23 sec) and37K(T 1/2=1.25 sec) have been produced in gas targets by (d, n) reactions and polarized by means of optical pumping or spin exchange scattering with optically pumped87Rb. An asymmetry up to 3% in theΒ-decay of the polarized nuclei was found, which served to detect rf transitions between hfs levels of the atomic ground states of21Na and37K.δF=0 andδF=1 resonances have been recorded, yielding spin, hfs separation and magnetic moment, especiallyI(37K)=3/2,δW(37K)=240.266 (3) Mc/sec andΜ I(37K)=0.02033(6) nm (diamagnetically corrected). For21Na earlier rf-spectroscopic data have been confirmed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01399103
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Spin exchange polarization and hfs anomaly measurement of β-active37K (1971)
    Springer
    The European physical journal 244 (1971), S. 44-69 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Rf-spectroscopic measurements in the atomic ground state of the 1.2 sec-isotope37K yielded independent values of magnetic moment μ I (37K)=0.20320 (6) nm (diamagnetically corrected), hfs separation ΔW(37K)=240.2672 (7) MHz and the resulting hfs anomaly37Δ39=(0.249±0.035) · 10−2. The37K was polarized by spin exchange scattering with optically pumped87Rb; as a detector for rf transitions the asymmetry of the β-decay of the polarized37K nuclei was used. A detailed analysis of the spin exchange mechanism under the conditions of experiments of this type was performed. This led to an explanation for the observed strong enhancement of the resonance signal heights by the spin bath. Furthermore the dependence of the nuclear polarization and relaxation time constants on the strength of the hfs coupling could be demonstrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01394873
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Determination of spin, magnetic moment and isotopic shift of neutron rich205Hg by optical pumping (1975)
    Springer
    The European physical journal 272 (1975), S. 369-374 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutron rich205Hg (T 1/2=5.2 min) was produced and on-line mass separated at the ISOLDE facility at CERN. The polarization achieved by optical pumping via the atomic line (6s 21 S 0↔6s6p 3 P 1,λ=2 537Å) was monitored by theβ decay asymmetry. Hyperfine structure and isotopic shift of the205Hg absorption line was determined by Zeeman scanning. In addition a magnetic resonance was performed on the polarized205Hg nuclei in the atomic ground state. The results are: $$I(^{205} Hg) = \tfrac{1}{2}$$ (confirmed);μ I (205Hg)=0.5915 (1)μ N (uncorrected for diamagnetism); isotopic shiftδv204/205=v(205Hg)-v(204Hg)=−1.8 (1) GHz.μ I and IS are discussed briefly in the frame of current literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01440863
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Hyperfine structure and isotope shifts of neutron-rich138–146Cs (1979)
    Springer
    The European physical journal 289 (1979), S. 227-228 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The 6s2S1/2-7p 2P3/2 transition in138–142Cs (λ=455.5 nm) has been investigated by high-resolution collinear laser spectroscopy in a fast atomic beam. The isotopes are obtained by on-line mass separation of fission products. Nuclear moments and changes of mean-square charge radii are derived from hyperfine structure and isotope shift.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01435942
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Fine and hyperfine structure of the 22 P term of7Li; determination of the nuclear quadrupole moment (1975)
    Springer
    The European physical journal 273 (1975), S. 221-232 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Microwave transitions between the Zeeman split doublet states 22 P 1/2 and 22 P 3/2 of7Li have been measured using the optical double resonance method. The fine structure separation was determined to bev fs=10.053.184(58) MHz. The hyperfine structure was well resolved and led to considerably improved precision of the diagonal coupling constantsa 1/2=45.914(25) MHz,a 3/2=−3.055(14) MHz,b=−0.221(29) MHz. Furthermore, the contact, spin dipolar and orbital magnetic hyperfine constants are evaluated using additional results from level crossing experiments, which are more sensitive on the non-diagonal magnetic hyperfine constanta 3/2,1/2. The results are in good agreement with recent theoretical calculations. The nuclear quadrupole moment is derived fromb to beQ(7Li)=−41(6) mbarn.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01410002
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Nuclear spins of76Rb and119Cs byβ radiation detected optical pumping (1978)
    Springer
    The European physical journal 284 (1978), S. 3-8 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An optical pumping apparatus has been attached to the reconstructed ISOLDE on-line mass separator at CERN in order to obtain nuclear data of isotopes far fromβ stability. As first results the spins of76Rb (T 1/2=36.8 s) and119Cs (T 1/2=37.7 s) have been determined byβ radiation detected optical pumping (β-RADOP) to beI=1 andI=9/2 respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01433867
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Nuclear Radiation Detected Optical Pumping of neutron-deficient Hg isotopes (1976)
    Springer
    The European physical journal 276 (1976), S. 187-202 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The extension of the Nuclear Radiation Detected Optical Pumping method to mass-separated samples of isotopes far off stability is presented for a series of light Hg isotopes produced at the ISOLDE facility at CERN. The isotope under investigation is transferred by an automatic transfer system into the optical pumping apparatus. Zeeman scanning of an isotopically pure Hg spectral lamp is used to reach energetic coincidence with the hyperfine structure components of the 6s 2 1 S 06s6p 3P1,λ=2,537 Å resonance line of the investigated isotope and the Hg lamp. The orientation built up by optical pumping is monitored via the asymmetry or anisotropy of the nuclear radiation. Nuclear spins, magnetic moments, electric quadrupole moments and the isotope shifts are obtained for181Hg-191Hg using theβ asymmetry as detector. The extension of the method using theγ anisotropy is discussed and test measurements on193Hg are presented. This paper describes the experimental procedure, results, and discussion are given in a following publication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412097
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Präzisionsmessung der Kerndipolmomente von Ba135 und Ba137 mit optischem Pumpen (1966)
    Springer
    The European physical journal 196 (1966), S. 77-84 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nuclear Zeeman levels of the ground state of Barium (6s2 1S0, F=I=3/2) were polarized by means of optical pumping with the resonance line (6s2 1S0−6s 6p1P1, λ=5535 Å). The magnetic field was calibrated by means of optical pumping of sodium. The magnetic moments, calculated from the nuclear Hf-Zeeman-transitions at 228 Gauss are μ135=0,83651 (6) μN μ137=0,93573 (6) μN (with diamagnetic correction). With the results of nuclear induction in BaCl2 we calculate the chemical shift to be (8.6±1.0)·10−4. The ratio of the nuclear moments is μ137/μ135=1.11862 (3) in agreement with the measurements in BaCl2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01330911
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Bestimmung der Kerndipolmomente von171Yb und173Yb durch optisches Pumpen (1967)
    Springer
    The European physical journal 200 (1967), S. 224-226 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nuclear Zeeman levels of the odd isotopes of Ytterbium (171Yb,171 I=1/2;173Yb,173 I=5/2) were polarized in the atomic ground state (6s 2 1 S 0) by means of optical pumping with the resonance line (6s 2 1 S 0 ↔ 6s6p 1 P 1,λ=3988 å). The magnetic moments, calculated from the nuclear Hf-Zeeman transitions in a magnetic field of 228 Gauss are171 Μ I=0.49188 (2)Μ K 173 Μ I=0,67755 (3)Μ K (with diamagnetic correction applied).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01328937
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Kopplung μ-mesonischer und elektronischer Hyperfeinstruktur in einem Atom (1969)
    Springer
    The European physical journal 225 (1969), S. 393-406 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In calculating the hyperfinestructure interaction between aμ-mesonic atom and a valence electron, the former can be treated as a pseudonucleus of charge (Z−1), since its radius is very small as compared to the one of the electronic wave function. The consequences of this concept as well as corrections to it are discussed in detail. The experimental possibility of anrf-spectroscopy of this hyperfinestructure is pointed out. It bases on the destruction of theβ-decay asymmetry of stopped polarizedμ-mesons at resonance. Special attention is payed to the one-electron system (He++ μ−)e −.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01392768
    Location Call Number Limitation 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...