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RESEARCH PRODUCT
Isotope shifts and hyperfine structure in the transitions of stable calcium isotopes and calcium-41
Wilfried NörtershäuserKlaus WendtBruce A. BushawNorbert Trautmannsubject
IsotopeChemistryAnalytical chemistryAtomic and Molecular Physics and OpticsMolecular electronic transitionAnalytical ChemistryIsotopes of calciumExcited statePhysics::Atomic PhysicsAtomic physicsAtomic vapor laser isotope separationSpectroscopyInstrumentationHyperfine structureQuadrupole mass analyzerSpectroscopydescription
Isotope shifts and hyperfine structure in the 4s2 1S0 → 4s4p 1P1 and 4s2 1S0 → 4s4d 1D2 transitions of calcium have been measured with high-precision laser spectroscopy. Calcium atoms in an atomic beam were excited with single-frequency cw dye and titanium sapphire lasers and then photoionized with the 363.8 nm or 514.5 nm line of an argon ion laser. The resulting ions were analyzed and detected with a quadrupole mass spectrometer. Isotope shifts for all stable calcium isotopes and the radionuclide 41Ca have been measured in both transitions. The corresponding field shift and specific mass shift coefficients as well as hyperfine structure constants for the isotopes 41, 43Ca have been derived. The results are compared with previous work and values for 41,43,46Ca in the 4s4d 1D2 state are reported for the first time.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-05-01 | Spectrochimica Acta Part B: Atomic Spectroscopy |