Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma

S. M. Vinko, O. Ciricosta, T. R. Preston, D. S. Rackstraw, C. R.D. Brown, T. Burian, J. Chalupský, B. I. Cho, H. K. Chung, K. Engelhorn, R. W. Falcone, R. Fiokovinini, V. Hájková, P. A. Heimann, L. Juha, H. J. Lee, R. W. Lee, Marc Messerschmidt, B. Nagler, W. SchlotterJ. J. Turner, L. Vysin, U. Zastrau, J. S. Wark

Research output: Contribution to journalArticle

42 Citations (Scopus)

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.

Original languageEnglish (US)
Article number6397
JournalNature Communications
Volume6
DOIs
StatePublished - Mar 4 2015
Externally publishedYes

Fingerprint

Aluminum
Ionization
aluminum
Plasmas
ionization
collision rates
free electrons
Electrons
X ray lasers
Free electron lasers
coherent light
Light sources
light sources
Lasers
X-Rays
Ions
Light
Atoms
Temperature
collisions

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Vinko, S. M., Ciricosta, O., Preston, T. R., Rackstraw, D. S., Brown, C. R. D., Burian, T., ... Wark, J. S. (2015). Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma. Nature Communications, 6, [6397]. https://doi.org/10.1038/ncomms7397

Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma. / Vinko, S. M.; Ciricosta, O.; Preston, T. R.; Rackstraw, D. S.; Brown, C. R.D.; Burian, T.; Chalupský, J.; Cho, B. I.; Chung, H. K.; Engelhorn, K.; Falcone, R. W.; Fiokovinini, R.; Hájková, V.; Heimann, P. A.; Juha, L.; Lee, H. J.; Lee, R. W.; Messerschmidt, Marc; Nagler, B.; Schlotter, W.; Turner, J. J.; Vysin, L.; Zastrau, U.; Wark, J. S.

In: Nature Communications, Vol. 6, 6397, 04.03.2015.

Research output: Contribution to journalArticle

Vinko, SM, Ciricosta, O, Preston, TR, Rackstraw, DS, Brown, CRD, Burian, T, Chalupský, J, Cho, BI, Chung, HK, Engelhorn, K, Falcone, RW, Fiokovinini, R, Hájková, V, Heimann, PA, Juha, L, Lee, HJ, Lee, RW, Messerschmidt, M, Nagler, B, Schlotter, W, Turner, JJ, Vysin, L, Zastrau, U & Wark, JS 2015, 'Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma', Nature Communications, vol. 6, 6397. https://doi.org/10.1038/ncomms7397
Vinko SM, Ciricosta O, Preston TR, Rackstraw DS, Brown CRD, Burian T et al. Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma. Nature Communications. 2015 Mar 4;6. 6397. https://doi.org/10.1038/ncomms7397
Vinko, S. M. ; Ciricosta, O. ; Preston, T. R. ; Rackstraw, D. S. ; Brown, C. R.D. ; Burian, T. ; Chalupský, J. ; Cho, B. I. ; Chung, H. K. ; Engelhorn, K. ; Falcone, R. W. ; Fiokovinini, R. ; Hájková, V. ; Heimann, P. A. ; Juha, L. ; Lee, H. J. ; Lee, R. W. ; Messerschmidt, Marc ; Nagler, B. ; Schlotter, W. ; Turner, J. J. ; Vysin, L. ; Zastrau, U. ; Wark, J. S. / Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma. In: Nature Communications. 2015 ; Vol. 6.
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AU - Turner, J. J.

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