Double-sided laser heating system at HPCAT for in situ x-ray diffraction at high pressures and high temperatures

Y Meng; G Shen; H K Mao

doi:10.1088/0953-8984/18/25/S17

Double-sided laser heating system at HPCAT for in situ x-ray diffraction at high pressures and high temperatures

J Phys Condens Matter. 2006 Jun 28;18(25):S1097-103. doi: 10.1088/0953-8984/18/25/S17. Epub 2006 Jun 9.

Authors

Y Meng¹, G Shen, H K Mao

Affiliation

¹ HPCAT, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA. Geophysical Laboratory, Carnegie Institution of Washington, Washington DC 20015, USA.

PMID: 22611101
DOI: 10.1088/0953-8984/18/25/S17

Abstract

An overview of a YLF:Nd laser heating system at the undulator x-ray diffraction station (16ID-B) of the high-pressure collaborative access team (HPCAT) of the Advanced Photon Source is presented. Based on the double-sided laser heating technique, the system is designed with considerable effort on the mechanical and optical stabilities, features for user-friendly operation, and the capability of accommodating diamond anvil cells of various heights up to 68 mm. This system has been used for x-ray diffraction studies of a wide range of materials to over 150 GPa and above 3000 K. Applying the laser heating technique to radial x-ray diffraction studies at simultaneous high-pressure and high-temperature (PT) conditions requires heating to be conducted at variable angles relative to the x-ray direction. A rotation laser heating design is discussed.