Abstract

Results of the 2018 commissioning and experimental campaigns of the new High Power Laser Facility on the Energy-dispersive X-ray Absorption Spectroscopy (ED-XAS) beamline ID24 at the ESRF are presented. The front-end of the future laser, delivering 15 J in 10 ns, was interfaced to the beamline. Laser-driven dynamic compression experiments were performed on iron oxides, iron alloys and bismuth probed by online time-resolved XAS.

Highlights

  • Dynamic compression induced by powerful lasers offers a route to extreme conditions of pressure and temperature that go beyond what is achievable today by static compression with the laser-heated diamond anvil cell

  • Laserdriven dynamic compression experiments were performed on iron oxides, iron alloys and bismuth probed by online time-resolved X-ray absorption spectroscopy (XAS)

  • We present the first phase of High Power Laser Facility (HPLF-I) where the front-end of the Amplitude laser, delivering 15 J, was coupled to beamline ID24, together with related technical details and initial experimental results

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Summary

Introduction

Dynamic compression induced by powerful lasers offers a route to extreme conditions of pressure and temperature that go beyond what is achievable today by static compression with the laser-heated diamond anvil cell. This area of research encompasses industrial processes such as laser machining or the synthesis of new materials. A new strategy has emerged: coupling more compact lasers to brilliant X-ray sources such as synchrotrons or XFELs to ensure high-quality X-ray measurements (Glenzer et al, 2016; Wang et al, 2019; Inubushi et al, 2020), exploiting the long-standing expertise of the synchrotron community In this context, the ESRF has developed the opportunity of coupling dynamic compression experiments to time-resolved single-pulse XAS at beamline ID24. We present the first phase of HPLF-I where the front-end of the Amplitude laser, delivering 15 J, was coupled to beamline ID24, together with related technical details and initial experimental results

Energy-dispersive beamline ID24
X-ray detector
Target chamber
Targets
Bismuth
Conclusions and perspectives
Funding information
Full Text
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