title: In situ laser heating and radial synchrotron x-ray diffraction in a diamond anvil cell.
abstract: We report a first combination of diamond anvil cell radial x-ray diffraction with in situ laser heating. The laser-heating setup of ALS beamline 12.2.2 was modified to allow one-sided heating of a sample in a diamond anvil cell with an 80 W yttrium lithium fluoride laser while probing the sample with radial x-ray diffraction. The diamond anvil cell is placed with its compressional axis vertical, and perpendicular to the beam. The laser beam is focused onto the sample from the top while the sample is probed with hard x-rays through an x-ray transparent boron-epoxy gasket. The temperature response of preferred orientation of (Fe,Mg)O is probed as a test experiment. Recrystallization was observed above 1500 K, accompanied by a decrease in stress.
authors.affiliation: Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.
authors.forename: Martin
authors.initials: M
authors.lastname: Kunz
authors.forename: Wendel A
authors.initials: WA
authors.lastname: Caldwell
authors.forename: Lowell
authors.initials: L
authors.lastname: Miyagi
authors.forename: Hans-Rudolf
authors.initials: HR
authors.lastname: Wenk
mesh_terms: D018130:Diamond; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006361:Heating / Q000295:instrumentation*; D007834:Lasers; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013048:Specimen Handling / Q000295:instrumentation*; D017356:Synchrotrons / Q000295:instrumentation*; D014961:X-Ray Diffraction / Q000295:instrumentation*
chemical_list: D018130:Diamond