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Laser heating at P02.2 at PETRA III, capabilities and planning

Laser heating at P02.2 at PETRA III, capabilities and planning. W. Morgenroth 1 , Z. Konôpková 2 , H.-P . Liermann 2 , B. Winkler 1 1 Goethe-Universität Frankfurt am Main 2 Deutsches Elektronen Synchrotron (DESY ), Hamburg. O utline. PETRA III at DESY

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Laser heating at P02.2 at PETRA III, capabilities and planning

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  1. Laser heating at P02.2 at PETRA III,capabilities and planning W. Morgenroth1, Z. Konôpková2, H.-P. Liermann2, B. Winkler1 1Goethe-Universität Frankfurt am Main 2Deutsches Elektronen Synchrotron (DESY), Hamburg

  2. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  3. Research with Photons at DESY Three generations of X-ray sources in one place: DORIS III 2ndgeneration, 5 GeVmachine till 22th of October PETRA III 3rdgeneration, 6 GeVmachine FLASH 4thgeneration, VUV and soft X-ray range European XFEL 4thgeneration, hard X-ray range starting in 2015-2016

  4. PETRA III atDESYMax von Laue experimental hall Parameters: Length: 2304 m Energy: 6.0 GeV Current: 100 mA Bunches: 960 or 40 Horizontal emittance: 1 nmrad • Most brilliant 3rd generation high energy source: • Positron beam with small horizontal emittance • Small source in undulator produces a photon beam with very small divergence • X-ray beam can be focused well • Time resolved experiments in the Hz frequency range W. Morgenroth, Uni Frankfurt

  5. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  6. Extreme Conditions Beamline (ECB) P02.2at the Hard X-Ray Diffraction Beamlines for Time Resolved Studies P02 • fixed energies: 25.6, 42.7, 60.0 keV • focus (FWHM) at 42.7 keV: • Kirkpatrick-Baez mirrors 1.5 x 1.5 µm or • Compact Refractive Lenses 4 x 8 µm • sample stack with 100 nm precision • PerkinElmer XRD 1621 detectors • MarIP imaging plate • Pilatus 1M detector (pool) • gas membrane (not for all types of cells) • online ruby pressure at both tables LH (left) GP (right) X-rays General purpose table Laser heating table W. Morgenroth, Uni Frankfurt

  7. Laser heating table • X-rays and detector • Observation and spectrometer path • Fiber laser • Ruby laser and spectrometer detector W. Morgenroth, Uni Frankfurt

  8. Laser heating table Observationpath: • Ag coated glassy carbon mirrors • geoHEAT60_NIR objectives • Prosilica cameras directly inspecting the sample, highly sensitive to see the fluorescence of the X-ray beam (~ 5 sec exposure) • inspection at mirror pinhole in front of spectrometer by movablePellicle beamsplitter 1 4 3 2 W. Morgenroth, Uni Frankfurt

  9. Laser heating table Observationpath: • New: Andor shamrock spectrometer and iStariCCD (fast, no filters necessary) • two-sided temperature measurement by spectral radiometry (up- and downstream in parallel using double pinhole) • 45 watt quartz-halogen tungsten coiled filament lamp (Gooch & Housego), standard of correlated color temperature X-rays W. Morgenroth, Uni Frankfurt

  10. Off-axis laser heating setup Laser path: • one 100 W NIR fiber laser 1064 nm • split into upstream and downstream path • polarizing beam splitter cubes and λ/2 waveplatesin rotators to control the power • movement of lasers in-dependent of (re)alignment of observation path 1 3 2 4 5 W. Morgenroth, Uni Frankfurt

  11. Off-axis laser heating setup Laser path: • change of laser focus possible • not necessarily an optical element in path of X-rays • but: basic alignment might be more difficult due to reflection in diamond • planning: exchange the stepper motor system by Newport MFA linear stages with sub micron resolution Temperature range: 1000 K – 4000 K W. Morgenroth, Uni Frankfurt

  12. Temperature determination • collection of up- and downstream spectra in parallel • exposure time in the second to sub-second range • analysis by BGI program at once • wavelength range usable: 550 to 850 nm • example: Pt foil in symmetric DAC, up- and downstream W. Morgenroth, Uni Frankfurt

  13. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  14. On-axis laser heating W. Morgenroth, Uni Frankfurt

  15. On-axis laser heating 1 • 200 W IPG fiber laser, 1064 nm • experiments reaching for ultimate high pressure • but: glassy carbon mirrors for laser beam transport in X-ray beam path • but: no independent change of laser focus • therefore: this path will include piShapers 2 X-rays W. Morgenroth, Uni Frankfurt

  16. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  17. Fluorescence setup • Vortex detector (and expertise) from beamline L • XOS Capillary with 50 mm focal length, input focal spot size <= 160 µm @ 17.4 keV • grid scans implemented in control software Online • parallel mapping of fluorescence and X-ray diffraction (XRF, XRD) 1 2 W. Morgenroth, Uni Frankfurt

  18. Fluorescence setup • special preparation of diamond anvil cell necessary! • 1st experiments by Manuela Borchert, Karen Appel (DESY) and Sylvain Petitgirard (ESRF) W. Morgenroth, Uni Frankfurt

  19. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  20. CO2 laser heating system • at present: offlinesetup in laser lab • 100 W Synrad CO2 laser • off-axis setup parallel to the fiber laser • one-sided heating • for transparent samples • power control using an Acusto Optical Modulator • commissioning in fall 2012 W. Morgenroth, Uni Frankfurt

  21. Outline • PETRA III at DESY • Extreme Conditions Beamline (ECB) • off-axis laser heating • on-axislaser heating • fluorescence setup • CO2 laser heating system • Extreme Conditions Science Infrastructure • Outlook W. Morgenroth, Uni Frankfurt

  22. Extreme Conditions Science Infrastructure (ECSI) • sample preparation: microscopes, gasket preparation, furnaces, glove box, … • gas loading system for Ar, Ne, N2, He (at present: for symmetric cells with membrane) • preparation of Be gaskets is under safety evaluation (available according to prior agreement) • offline laser heating system (in commissioning) • offline Raman system (in commissioning) • offline Brillouin scattering system (by GFZ Potsdam) Open for users with more or less (laser heating) experience! (limited number of beginner groups) W. Morgenroth, Uni Frankfurt

  23. Outlook • pulsed laser heating: is in commissioning by ZuzanaKonôpková, Alexander Goncharov and VitaliPrakapenka,available in 2014 • „pink beam“ option: available end of 2014 • installation of beam optics for „pink beam” in spring 2013 • shutdown due to PETRA III extension: May till December 2013 • deadlines for new projects at DESY Photon Science facilities:1thof March and 1th of September (no call next March) W. Morgenroth, Uni Frankfurt

  24. Up to date information Facilities / PETRA III / Beamlines / P02 Hard X-Ray Diffraction Beamline for Time Resolved Studies W. Morgenroth, Uni Frankfurt

  25. Science beyond 4 Mbar and using dynamic compression workshop organized by DESY and European XFEL: Liermann / Toleikis / Tschentscher 18th and 19th of October in Hamburg List ofspeakers:C. Barnes (LANL)R. Collins (LLNL)T. Duffy (Princeton)L. Dubrovinsky (BGI)S. Glenzer (LLNL)A. Goncharov (GL)T. Kenkmann (U Freiburg)P. Loubeyre (CEA)C. Pickard (UCL)R. Redmer (U Rostock)Ch. Schroer (TU Dresden)T. Spohn (DLR)C.-S. Yoo (U Wash. St) W. Morgenroth, Uni Frankfurt

  26. Thank you • ZuzanaKonôpková, Hanns-Peter Liermann, Anita Ehnes, Jan TorbenDelitz, BicanYilmaz(DESY) • Alexandra Friedrich, Lkhamsuren Bayarjargal, David Merges, Björn Winkler (Uni Frankfurt) • SPP1236, DFG • Funding by BMBF projects 05KS7RF1 and 05K10RFA W. Morgenroth, Uni Frankfurt

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