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

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Hansen, S.B. and Colgan, J. and Faenov, A.Ya and Abdallah Jr, J. and Pikuz, S.A. and Skobelev, I.Yu and Wagenaars, E. and Booth, N. and Culfa, O. and Dance, R.J. and Tallents, G.J. and Evans, R.G. and Gray, R.J. and Kaempfer, T. and Lancaster, K.L. and McKenna, P. and Rossall, A.K. and Schulze, K.S. and Uschmann, I. and Zhidkov, A.G. and Woolsey, N.C. (2014) Detailed analysis of hollow ions spectra from dense matter pumped by X-ray emission of relativistic laser plasma. Physics of Plasmas, 21 (3). 031213. ISSN 1070-664X (https://doi.org/10.1063/1.4865227)

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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.

ORCID iDs

Hansen, S.B., Colgan, J., Faenov, A.Ya, Abdallah Jr, J., Pikuz, S.A., Skobelev, I.Yu, Wagenaars, E., Booth, N., Culfa, O., Dance, R.J. ORCID logoORCID: https://orcid.org/0000-0001-8252-5342, Tallents, G.J., Evans, R.G., Gray, R.J. ORCID logoORCID: https://orcid.org/0000-0003-0610-9595, Kaempfer, T., Lancaster, K.L., McKenna, P. ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, Rossall, A.K., Schulze, K.S., Uschmann, I., Zhidkov, A.G. and Woolsey, N.C.;
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