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Title: Time differentiated nuclear resonance spectroscopy coupled with pulsed laser heating in diamond anvil cells

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 Fe{sub 3}C using synchrotron Mössbauer source spectroscopy, FeCO{sub 3} using nuclear inelastic scattering, and Fe{sub 2}O{sub 3} 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:
;  [1] ;  [2] ; ; ; ;  [1] ;  [3] ; ;  [4] ; ;  [5]
  1. Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth (Germany)
  2. (France)
  3. Photon Science, DESY, D-22607 Hamburg (Germany)
  4. Laboratory of Crystallography, Material Physics and Technology at Extreme Conditions, Universität Bayreuth, D-95440 Bayreuth (Germany)
  5. ESRF-The European Synchrotron, CS 40220, 38043 Grenoble Cedex 9 (France)
Publication Date:
OSTI Identifier:
22482608
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DATA ACQUISITION; DIAMONDS; EUROPEAN SYNCHROTRON RADIATION FACILITY; FERRITES; INELASTIC SCATTERING; IRON CARBIDES; IRON CARBONATES; IRON OXIDES; LASER-RADIATION HEATING; LASERS; PULSES; RESONANCE; SPECTROSCOPY; SYNCHROTRONS