Gianluca Gregori: Publications

An Attempt to Generate an Inner-Shell Photo-Ionisation Pumped X-Ray Laser Using the ASTRA Laser at RAL

Springer Proceedings in Physics Springer Nature 130 (2009) 537-542

Authors:

TWJ Dzelzainis, M Streeter, FY Khattak, R Ferrari, CLS Lewis, D Riley, R Tommasini, G Gregori

Hybrid Simulations for the Ion Structure and Dynamics in Dense Plasmas

ATOMIC PROCESSES IN PLASMAS 1161 (2009) 280-+

Authors:

G Gregori, J Vorberger, DO Gericke

Soft X-Ray Thomson Scattering in Warm Dense Matter at FLASH

Chapter in Ultrafast Phenomena XVI, Springer Nature 92 (2009) 241-243

Authors:

RR Fäustlin, S Toleikis, Th Bornath, L Cao, T Döppner, S Düsterer, E Förster, C Fortmann, SH Glenzer, S Göde, G Gregori, A Höll, R Irsig, T Laarmann, HJ Lee, KH Meiwes-Broer, A Przystawik, P Radcliffe, R Redmer, H Reinholz, G Röpke, R Thiele, J Tiggesbäumker, NX Truong, I Uschmann, U Zastrau, Th Tschentscher

Bremsstrahlung and line spectroscopy of warm dense aluminum plasma heated by xuv free-electron-laser radiation

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 78:6 (2008)

Authors:

U Zastrau, C Fortmann, RR Fäustlin, LF Cao, T Döppner, S Düsterer, SH Glenzer, G Gregori, T Laarmann, HJ Lee, A Przystawik, P Radcliffe, H Reinholz, G Röpke, R Thiele, J Tiggesbäumker, NX Truong, S Toleikis, I Uschmann, A Wierling, T Tschentscher, E Förster, R Redmer

Abstract:

We report the creation of solid-density aluminum plasma using free-electron laser (FEL) radiation at 13.5 nm wavelength. Ultrashort pulses were focused on a bulk Al target, yielding an intensity of 2× 1014/cm2. The radiation emitted from the plasma was measured using an xuv spectrometer. Bremsstrahlung and line intensity ratios yield consistent electron temperatures of about 38 eV, 91̽��ed by radiation hydrodynamics simulations. This shows that xuv FELs heat up plasmas volumetrically and homogeneously at warm-dense-matter conditions, which are accurately characterized by xuv spectroscopy. © 2008 The American Physical Society.

Image plate response for conditions relevant to laser-plasma interaction experiments

Measurement Science and Technology 19:9 (2008)

Authors:

IJ Paterson, RJ Clarke, NC Woolsey, G Gregori

Abstract:

We have measured the absolute response and detective quantum efficiency of image plates (IPs) for 5.9 keV x-rays using a calibrated iron-55 source. The types of IPs considered in this study are now commonly used as x-ray detectors in high-intensity laser-plasma interaction experiments, where conventional CCD fails because of the intense electromagnetic pulse that follows a high-intensity shot. Since the plates are not read out immediately after each laser shot, a detailed fading analysis of the plates is also presented. This work is important for future implementation of IPs as absolute x-ray photon detectors in large-scale laser facilities. © 2008 IOP Publishing Ltd.

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