title: Portable laser-heating stand for synchrotron applications.
abstract: A compact, double-sided laser-heating system for diamond-cell synchrotron applications is described. The optical table, containing laser, spectrometer, and all optics for visual observation and measuring temperatures and pressures has an area of less than 1/2 m(2) and weighs less than 20 kg. All components can be remotely controlled at micron levels with simple dc motors and pneumatic drives. The design allows quick alignment of the laser-heated hot spot with the x-ray beam and the spectrometer. The prealigned system can be set up at most synchrotron beamlines within about 1 h. We carried out measurements on a variety of materials above one megabar and up to over 4000 K at both the x-ray diffraction beamline ID 27 and the x-ray absorption beamline ID 24 at the European Synchrotron Facility. A new measurement of the melting temperature of iron by x-ray absorption spectroscopy is presented.
authors.affiliation: Max-Planck-Institut fur Chemie, Postfach 3060, D-55020 Mainz, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Boehler
authors.forename: H G
authors.initials: HG
authors.lastname: Musshoff
authors.forename: R
authors.initials: R
authors.lastname: Ditz
authors.forename: G
authors.initials: G
authors.lastname: Aquilanti
authors.forename: A
authors.initials: A
authors.lastname: Trapananti