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Now showing items 11-20 of 20
Charge-Transfer from Molecular-Hydrogen to Stored O-2+ and O-3+ Ions
(American Physical Society, 1989)
Direct Observation of Hyperfine Quenching of the (2)3p0 Level in Helium-Like Nickel
(American Physical Society, 1991)
We report a clear demonstration of the effect of hyperfine quenching of a forbidden transition by direct comparison of the lifetimes of the 2 3P0 level in the heliumlike isotopes Ni-61(26+) and Ni-58(26+). We find the ...
Electron-Transfer from H-2 and Ar to Stored Multiply Charged Argon Ions Produced by Synchrotron Radiation
(American Physical Society, 1992)
The rate coefficients for electron transfer from Ar and H-2 to Ar(q+) ions (3 less-than-or-equal-to q less-than-or-equal-to 6) have been measured using an ion-storage technique in a Penning ion trap. The ions were produced ...
Measurement of a magnetic-dipole transition probability in Xe32+ using an electron-beam ion trap
(American Physical Society, 1997)
The transition probability for the 3d(4) D-5(2) <-- D-5(3) magnetic-dipole transition in Ti-like Xe (Xe32+) has been measured using an electron-beam ion trap. The unusually weak dependence of the transition energy on nuclear ...
Quenching Collisions of Low-Energy Metastable Multiply-Charged Argon Ions
(American Physical Society, 1994)
Quenching rates have been measured for selected metastable levels of Ar(q+) ions (q = 2, 3, 9, and 10) stored in a Kingdon ion trap, with mean energies of 262q eV and 181q eV. Effective quenching cross sections derived ...
Collinear Laser-Beam Ion-Beam Measurement of the Mean Lifetime of the Ar Ii 4p'2f-Degrees-7/2 Level
(American Physical Society, 1993)
The mean lifetime tau of the 4p'F-2(7/2)-degrees level of Ar II has been measured using a variant of the collinear laser-beam-fast-ion-beam spectroscopy technique. Our variant requires no mechanical motion or laser frequency ...
Polarization and Pressure-Dependence of 2p-1s Transitions in He-Like and Li-Like Neon Recoil Ions
(American Physical Society, 1987)
Dielectronic Recombination Cross-Sections of Fluorinelike Xenon
(American Physical Society, 1993)
Measurements of relative dielectronic recombination (DR) cross sections for fluorinelike xenon (Xe45+) are presented. Recombination takes place in an electron-beam ion trap, where decay rates are obtained as the ions ...
Confined Thermal Multicharged Ions Produced by Synchrotron Radiation
(American Physical Society, 1987)
Measurements and calculations of metastable level lifetimes in Fe X, Fe XI, Fe XII, Fe XIII, and Fe XIV
(American Physical Society, 2001)
Lifetimes of metastable levels in the ground term of Fe ions within the 3s(2)3p(k), k=1-5, isoelectronic sequences have been measured. These measurements were performed utilizing ions that were selected by mass to charge ...