A. M. Covington

K-shell photoionization of ground-state Li-like carbon ions [C3+]: experiment, theory and comparison with time-reversed photorecombination

Absolute cross sections for the K-shell photoionization of ground-state Li-like carbon [C3+(1s22s 2S)] ions were measured by employing the ion?photon merged-beams technique at the Advanced Light Source. The energy ranges 299.8?300.15?eV, 303.29?303.58?eV and 335.61?337.57?eV of the [1s(2s2p)3P]2P, [1s(2s2p)1P]2P and [(1s2s)3S 3p]2P resonances, respectively, were investigated using resolving powers of up to 6000. The autoionization linewidth of the [1s(2s2p)1P]2P resonance was measured to be 27 ? 5?meV and compares favourably with a theoretical result of 26?meV obtained from the intermediate coupling R-matrix method. The present photoionization cross section results are compared with the outcome from photorecombination measurements by employing the principle of detailed balance.

Evidence of small odd‐numbered dianionic carbon cluster beams from a cesium‐sputter negative ion source

Evidence of odd‐numbered Cn2− (n=7–13) cluster beams produced in a cesium‐sputter negative ion source has been observed. The minimum lifetime of smallest dianion, C72−, is estimated to be at least 55 μs. An experiment to investigate the structure of these dianions is also described.

Valence-shell photoionization of chlorinelike Ar+ ions

Absolute cross-section measurements for valence-shell photoionization of Ar

ABSOLUTE PHOTOIONIZATION CROSS SECTION MEASUREMENTS OF O ii IONS FROM 29.7 TO 46.2 eV

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Investigations of thermotropic phase behavior of newly developed synthetic PEGylated lipids using Raman spectro‐microscopy

ions are reported for photon energies ranging from 27.4 to 60.0 eV. The data, taken by merging beams of ions and synchrotron radiation at a photon energy resolution of 10 meV, indicate that the primary ion beam was a statistically weighted mixture of the

K-shell photoionization of Be-like carbon ions : experiment and theory for C2+

{}^{2}{P}_{3/2}^{o}

Measurement of the electron affinity of lanthanum

ground state and the

Laser photodetachment electron spectrometry of

{}^{2}{P}_{1/2}^{o}

Valence-shell single photoionization of Kr+ ions: Experiment and theory

metastable state of Ar

Spectroscopic characterization of bionanoparticles originating from newly developed self-forming synthetic PEGylated lipids (QuSomes)

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