title: Time differentiated nuclear resonance spectroscopy coupled with pulsed laser heating in diamond anvil cells.
abstract: Developments in pulsed laser heating applied to nuclear resonance techniques are presented together with their applications to studies of geophysically relevant materials. Continuous laser heating in diamond anvil cells is a widely used method to generate extreme temperatures at static high pressure conditions in order to study the structure and properties of materials found in deep planetary interiors. The pulsed laser heating technique has advantages over continuous heating, including prevention of the spreading of heated sample and/or the pressure medium and, thus, a better stability of the heating process. Time differentiated data acquisition coupled with pulsed laser heating in diamond anvil cells was successfully tested at the Nuclear Resonance beamline (ID18) of the European Synchrotron Radiation Facility. We show examples applying the method to investigation of an assemblage containing ε-Fe, FeO, and Fe3C using synchrotron Mössbauer source spectroscopy, FeCO3 using nuclear inelastic scattering, and Fe2O3 using nuclear forward scattering. These examples demonstrate the applicability of pulsed laser heating in diamond anvil cells to spectroscopic techniques with long data acquisition times, because it enables stable pulsed heating with data collection at specific time intervals that are synchronized with laser pulses.
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Kupenko
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Strohm
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: C
authors.initials: C
authors.lastname: McCammon
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Cerantola
authors.affiliation: Photon Science, DESY, D-22607 Hamburg, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Glazyrin
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Petitgirard
authors.affiliation: Laboratory of Crystallography, Material Physics and Technology at Extreme Conditions, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Vasiukov
authors.affiliation: Laboratory of Crystallography, Material Physics and Technology at Extreme Conditions, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Aprilis
authors.affiliation: ESRF-The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France.
authors.forename: A I
authors.initials: AI
authors.lastname: Chumakov
authors.affiliation: ESRF-The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9, France.
authors.forename: R
authors.initials: R
authors.lastname: Rüffer
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: L
authors.initials: L
authors.lastname: Dubrovinsky