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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.

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Presentation on theme: "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."— Presentation transcript:

1 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

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

3 Three generations of X-ray sources in one place: DORIS III 2 nd generation, 5 GeV machine till 22 th of October PETRA III 3 rd generation, 6 GeV machine FLASH 4 th generation, VUV and soft X-ray range European XFEL 4 th generation, hard X-ray range starting in Research with Photons at DESY

4 PETRA III at DESY Max 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 3 rd 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 4W. Morgenroth, Uni Frankfurt

5 Outline PETRA III at DESY Extreme Conditions Beamline (ECB) – off-axis laser heating – on-axis laser heating – fluorescence setup – CO 2 laser heating system – Extreme Conditions Science Infrastructure Outlook 5W. Morgenroth, Uni Frankfurt

6 Extreme Conditions Beamline (ECB) P02.2 at 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 W. Morgenroth, Uni Frankfurt6 LH (left) GP (right) X-rays Laser heating tableGeneral purpose table

7 Laser heating table X-rays and detector Observation and spectrometer path Fiber laser Ruby laser and spectrometer W. Morgenroth, Uni Frankfurt7 detector

8 Laser heating table Observation path: Ag coated glassy carbon mirrors geoHEAT 60_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 movable Pellicle beamsplitter W. Morgenroth, Uni Frankfurt

9 Laser heating table Observation path: New: Andor shamrock spectrometer and iStar iCCD (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 W. Morgenroth, Uni Frankfurt9 X-rays

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 waveplates in rotators to control the power movement of lasers in- dependent of (re)alignment of observation path 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 Frankfurt11

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 Frankfurt12

13 Outline PETRA III at DESY Extreme Conditions Beamline (ECB) – off-axis laser heating – on-axis laser heating – fluorescence setup – CO 2 laser heating system – Extreme Conditions Science Infrastructure Outlook 13W. Morgenroth, Uni Frankfurt

14 On-axis laser heating W. Morgenroth, Uni Frankfurt14

15 On-axis laser heating 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 W. Morgenroth, Uni Frankfurt15 X-rays 1 2

16 Outline PETRA III at DESY Extreme Conditions Beamline (ECB) – off-axis laser heating – on-axis laser heating – fluorescence setup – CO 2 laser heating system – Extreme Conditions Science Infrastructure Outlook 16W. Morgenroth, Uni Frankfurt

17 Fluorescence setup Vortex detector (and expertise) from beamline L XOS Capillary with 50 mm focal length, input focal spot size <= keV grid scans implemented in control software Online parallel mapping of fluorescence and X-ray diffraction (XRF, XRD) W. Morgenroth, Uni Frankfurt17 12

18 Fluorescence setup special preparation of diamond anvil cell necessary! 1 st experiments by Manuela Borchert, Karen Appel (DESY) and Sylvain Petitgirard (ESRF) W. Morgenroth, Uni Frankfurt18

19 Outline PETRA III at DESY Extreme Conditions Beamline (ECB) – off-axis laser heating – on-axis laser heating – fluorescence setup – CO 2 laser heating system – Extreme Conditions Science Infrastructure Outlook 19W. Morgenroth, Uni Frankfurt

20 CO 2 laser heating system at present: offline setup in laser lab 100 W Synrad CO 2 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 Frankfurt20

21 Outline PETRA III at DESY Extreme Conditions Beamline (ECB) – off-axis laser heating – on-axis laser heating – fluorescence setup – CO 2 laser heating system – Extreme Conditions Science Infrastructure Outlook 21W. Morgenroth, Uni Frankfurt

22 Extreme Conditions Science Infrastructure (ECSI) sample preparation: microscopes, gasket preparation, furnaces, glove box, … gas loading system for Ar, Ne, N 2, 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) 22W. Morgenroth, Uni Frankfurt

23 Outlook pulsed laser heating: is in commissioning by Zuzana Konôpková, Alexander Goncharov and Vitali Prakapenka, 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: 1 th of March and 1 th of September (no call next March) 23W. Morgenroth, Uni Frankfurt

24 Up to date information W. Morgenroth, Uni Frankfurt24 Facilities / PETRA III / Beamlines / P02 Hard X-Ray Diffraction Beamline for Time Resolved Studies

25 Science beyond 4 Mbar and using dynamic compression workshop organized by DESY and European XFEL: Liermann / Toleikis / Tschentscher 18 th and 19 th of October in Hamburg List of speakers: 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 Frankfurt25

26 Thank you Zuzana Konôpková, Hanns-Peter Liermann, Anita Ehnes, Jan Torben Delitz, Bican Yilmaz (DESY) Alexandra Friedrich, Lkhamsuren Bayarjargal, David Merges, Björn Winkler (Uni Frankfurt) SPP1236, DFG Funding by BMBF projects 05KS7RF1 and 05K10RFA W. Morgenroth, Uni Frankfurt26


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