Precision X-ray spectroscopy of intense laser-plasma interactions

Precision X-ray spectroscopy of intense laser-plasma interactions

Polarisation sensitive emission spectroscopy measurements are reported for a petawatt laser-solid target interaction at intensities up to 5 × 1020 W cm-2. These measurements were single-shot and used pairs of highly-orientated graphite spectrometers to resolve the sulphur Ly-α doublet. The sulphur L...

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Bibliographic Details
Main Authors: Woolsey, N, Clarke, R, Doria, D, Gizzi, L, Gregori, G, Hakel, P, Hansen, S, Koester, P, Labate, L, Levato, T, Li, B, Makita, M, Mancini, R, Pasley, J, Rajeev, P, Robinson, A, Wagenaars, E, Waugh, J, Booth, N
Format: Journal article
Language:English
Published: 2011
Description
Summary:Polarisation sensitive emission spectroscopy measurements are reported for a petawatt laser-solid target interaction at intensities up to 5 × 1020 W cm-2. These measurements were single-shot and used pairs of highly-orientated graphite spectrometers to resolve the sulphur Ly-α doublet. The sulphur Ly-α1 component shows a large positive polarisation indicative of a low energy electron beam in the plasma, the Ly-α2 component acts as a cross-spectrometer calibration. The measurements show a significant anisotropic or beam-like component to a cold return current. © 2011 Elsevier B.V.

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