Detailed analysis of hollow ions spectra from dense matter pumped by X-ray emission of relativistic laser plasma

S.B. Hansen, J. Colgan, A.Ya Faenov, J. Abdallah Jr, S.A. Pikuz, I.Yu Skobelev, E. Wagenaars, N. Booth, O. Culfa, R.J. Dance, G.J. Tallents, R.G. Evans, R.J. Gray, T. Kaempfer, K.L. Lancaster, P. McKenna, A.K. Rossall, K.S. Schulze, I. Uschmann, A.G. ZhidkovN.C. Woolsey

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Abstract

X-ray emission from hollow ions offers new diagnostic opportunities for dense, strongly coupled plasma. We present extended modeling of the x-ray emission spectrum reported by Colgan et al. [Phys. Rev. Lett. 110, 125001 (2013)] based on two collisional-radiative codes: the hybrid-structure Spectroscopic Collisional-Radiative Atomic Model (SCRAM) and the mixed-unresolved transition arrays (MUTA) ATOMIC model. We show that both accuracy and completeness in the modeled energy level structure are critical for reliable diagnostics, investigate how emission changes with different treatments of ionization potential depression, and discuss two approaches to handling the extensive structure required for hollow-ion models with many multiply excited configurations.
Original languageEnglish
Article number031213
Number of pages9
JournalPhysics of Plasmas
Volume21
Issue number3
DOIs
Publication statusPublished - 1 Mar 2014

Keywords

  • emission spectra
  • ionization
  • plasma diagnostics
  • Spectroscopic Collisional-Radiative Atomic Model
  • SCRAM

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