Determining Metastable Ion Lifetime and History through Wave-Particle Interaction

Chu, F.; Skiff, F.

doi:10.1103/physrevlett.122.075001

Title: Determining Metastable Ion Lifetime and History through Wave-Particle Interaction

Journal Article · Tue Feb 19 00:00:00 EST 2019 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.122.075001· OSTI ID:1612582

Chu, F. ^[1]; Skiff, F. ^[1]

Univ. of Iowa, Iowa City, IA (United States)

Laser-induced fluorescence (LIF) performed on metastable ions is frequently used to probe the dynamics of ground-state ion motions in many laboratory plasmas. However, these measurements place restrictions on the metastable ion lifetime. Metastable states are produced from direct ionization of neutral atoms as well as ions in other electronic states, of which the former will only faithfully represent processes that act on the ion dynamics in a time shorter than the metastable lifetime. We present here the first experimental study of this type of systematic effect using wave-particle interaction in an argon multidipole plasma. Furthermore, the metastable lifetime and relative fraction of metastables produced from preexisting ions, necessary for correcting the LIF measurement errors, can be determined by fitting the experimental results with the theory we propose.

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Research Organization:: Univ. of Iowa, Iowa City, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0016473

OSTI ID:: 1612582

Alternate ID(s):: OSTI ID: 1546154

Journal Information:: Physical Review Letters, Vol. 122, Issue 7; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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Cited By (2)

Measurement of wave-particle interaction and metastable lifetime using laser-induced fluorescence Chu, F.; Hood, R.; Skiff, F. Physics of Plasmas, Vol. 26, Issue 4 https://doi.org/10.1063/1.5089178	journal	April 2019
Measurement of wave-particle interaction and metastable lifetime using laser-induced fluorescence Chu, F.; Skiff, F. arXiv https://doi.org/10.48550/arxiv.1902.10701	text	January 2019

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Title: Determining Metastable Ion Lifetime and History through Wave-Particle Interaction

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