Comparison between leaky and pulsed modes of ion extraction from an electron beam ion trap

Hu, Zhimin; Ishiguro, Yusuke; Watanabe, Hirofumi; Ohtani, S.; Nakamura, Nobuyuki

doi:10.1016/j.nimb.2013.01.006

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…Although the ion abundance in the trap and that of the extracted ion can be different due to the different extraction efficiency depending on the charge state, we have confirmed that the ratio between adjacent charge states is consistent between the trapped and the extracted ions within 10% [40]. However, this uncertainty does not affect the measurement of the magnetic-sublevel population because of the strength ratios between the different resonant states in the same charge state, so that the difference in the extraction efficiency is completely canceled.…”

Section: A Ion-abundance Measurementssupporting

confidence: 53%

Atomic-number dependence of the magnetic-sublevel population in the autoionization state formed in dielectronic recombination

Han

et al. 2014

Phys. Rev. A

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The magnetic-sublevel population of the autoionization state formed in dielectronic recombination (DR) of highly charged heavy ions has been experimentally investigated by combining two types of measurements with an electron beam ion trap. The two different measurements are the differential x-ray measurement at 90 • with respect to the electron beam and the integral resonance-strength measurement. The alignment parameter, which denotes the magnetic-sublevel population distribution, has been obtained for the autoionization states [1s2s 2 2p 1/2 ] 1 formed in DR of Li-like Pr (atomic number Z = 59) and Ho (Z = 67). This work is a complement to our previous work [Phys. Rev. Lett. 108, 073002 (2012)] on Li-like Au (Z = 79). The experimental results are in reasonable agreement with theoretical predictions, and a strong Z-dependent tendency due to the Breit interaction has been confirmed.

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Section: A Ion-abundance Measurementssupporting

confidence: 53%