Reviews of topical problems

Spectra of hollow ions in an ultradense laser plasma

 a,  a, b,  a, b,  a
a Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russian Federation
b Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kyoto, Japan

Experiments with an ultrahigh-contrast femtosecond laser have yielded a new type of X-ray emission spectra with a complex structure consisting of resonance lines against the quasicontinuous background. Some recent work has shown that such spectra can only be accounted for by considering the radiation emitted by multiply charged hollow (empty K shell) ions in an ultradense plasma. This review discusses the observation of the spectra of hollow ions in an ultradense laser plasma and considers the types of such ions and how they are excited. Considerable opportunities of hollow ion spectra-based diagnostic techniques are emphasized.

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Fulltext is also available at DOI: 10.3367/UFNe.0182.201201c.0049
PACS: 52.20.−j, 52.38.−r, 52.70.−m (all)
DOI: 10.3367/UFNe.0182.201201c.0049
Citation: Skobelev I Yu, Faenov A Ya, Pikuz T A, Fortov V E "Spectra of hollow ions in an ultradense laser plasma" Phys. Usp. 55 47–71 (2012)
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Received: 19th, April 2011, revised: 10th, June 2011, 31st, May 2011

Оригинал: Скобелев И Ю, Фаенов А Я, Пикуз Т А, Фортов В Е «Спектры полых ионов в сверхплотной лазерной плазме» УФН 182 49–75 (2012); DOI: 10.3367/UFNr.0182.201201c.0049

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