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초강력 레이저 과학 연구단
초강력 레이저과학 연구단
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Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma

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Title
Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma
Author(s)
Vinko S.M.; Ciricosta O.; Preston T.R.; Rackstraw D.S.; Brown C.R.D.; Burian T.; Chalupsky J.; Byeoung Ick Cho; Chung H.-K.; Engelhorn K.; Falcone R.W.; Fiokovinini R.; Hajkova V.; Heimann P.A.; Juha L.; Lee H.J.; Lee R.W.; Messerschmidt M.; Nagler B.; Schlotter W.; Turner J.J.; Vysin L.; Zastrau U.; Wark J.S.
Publication Date
2015-03
Journal
NATURE COMMUNICATIONS, v.6, no., pp.6397 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The rate at which atoms and ions within a plasma are further ionized by collisions with the free electrons is a fundamental parameter that dictates the dynamics of plasma systems at intermediate and high densities. While collision rates are well known experimentally in a few dilute systems, similar measurements for nonideal plasmas at densities approaching or exceeding those of solids remain elusive. Here we describe a spectroscopic method to study collision rates in solid-density aluminium plasmas created and diagnosed using the Linac Coherent light Source free-electron X-ray laser, tuned to specific interaction pathways around the absorption edges of ionic charge states. We estimate the rate of collisional ionization in solid-density aluminium plasmas at temperatures ∼30eV to be several times higher than that predicted by standard semiempirical models
URI
http://pr.ibs.re.kr/handle/8788114/2100
DOI
10.1038/ncomms7397
ISSN
2041-1723
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
Files in This Item:
(Investigation)Prof. Cho 8EE98364-59D1-40D1-AEFF-994A2A65D29C.pdfDownload

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