Open AccessStrategies for in situ laser heating in the diamond anvil cell at an X‐ray diffraction beamline
Author(s) -
Petitgirard Sylvain,
Salamat Ashkan,
Beck Pierre,
Weck Gunnar,
Bouvier Pierre
Publication year - 2014
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577513027434
Subject(s) - beamline , pyrometer , diamond anvil cell , laser , synchrotron radiation , diffraction , synchrotron , nanosecond , materials science , optics , diamond , phase (matter) , continuous wave , chemistry , temperature measurement , physics , beam (structure) , organic chemistry , quantum mechanics , composite material
An overview of several innovations regarding in situ laser‐heating techniques in the diamond anvil cell at the high‐pressure beamline ID27 of the European Synchrotron Radiation Facility is presented. Pyrometry measurements have been adapted to allow simultaneous double‐sided temperature measurements with the installation of two additional online laser systems: a CO 2 and a pulsed Nd:YAG laser system. This reiteration of laser‐heating advancements at ID27 is designed to pave the way for a new generation of state‐of‐the‐art experiments that demand the need for synchrotron diffraction techniques. Experimental examples are provided for each major development. The capabilities of the double pyrometer have been tested with the Nd:YAG continuous‐wave lasers but also in a time‐resolved configuration using the nanosecond‐pulsed Nd:YAG laser on a Fe sample up to 180 GPa and 2900 K. The combination of time‐resolved X‐ray diffraction with in situ CO 2 laser heating is shown with the crystallization of a high‐pressure phase of the naturally found pyrite mineral MnS 2 (11 GPa, 1100–1650 K).