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The HZDR Program towards a Helmholtz beamline at XFEL

Helmholtz-Zentrum Dresden-Rossendorf. The HZDR Program towards a Helmholtz beamline at XFEL. Roland Sauerbrey. Member of the Helmholtz Association Foundation 01.01.1992 (e.V.)

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The HZDR Program towards a Helmholtz beamline at XFEL

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  1. Helmholtz-Zentrum Dresden-Rossendorf The HZDR Program towards a Helmholtz beamline at XFEL Roland Sauerbrey

  2. Member of the Helmholtz Association Foundation01.01.1992 (e.V.) Employeesca. 800 including ca. 260 scientists + 120 doctoral students as well as employees and guest scientists from more than 40 countries BudgetPublic funding (2011) ca. 84 Mio. € Saxon investment program ca. 70 Mio. €(2010 - 2014) Third-party funding and other sources ca. 20 Mio. € HZDR – Facts and Figures

  3. Research Questions and Large-Scale Facilities PET Center Cancer Research How can cancerous tumors be identified in the early stages and treated effectively? Radiation Source ELBE Free-Electron-Lasers High-Intensity Laser High Magnetic Field Laboratory Dresden Advanced Materials Research How does matter behave in strong fields and at small dimensions? Ion Beam Center Rossendorf Beamline ROBL at the ESRF Nuclear Safety Research How can the public and the environment be protected from technical risks? TOPFLOW Facility

  4. Unique combination of: high-power high-brilliance CW electron beams, synchronized with high rep-rate, ultra-high intensity lasers. Development of: new radiation sources, in unique combinations, enablingstudy of matter under extreme conditions & in new regimes. Will constitute a prototype for future facilities: National Center for Radiation Research in Oncology-Dresden, and Helmholtz beamline at XFEL, or FAIR. Center for high power radiation sources @ HZDR Concept:

  5. ELBE Upgrades Zentrum HSQ High Intensity Lasers 2010 2011 2012 2013 2014 2015 Center for high power radiation sources @ HZDR

  6. Center for high power radiation sources

  7. Petawatt, Energy-Efficient Laser for Optical Plasma Experiments Development of a 2nd generation directly diode laser pumped short pulse PW laser (design: 150J in 150fs, >1Hz rep. Rate, active medium Yb:CaF2 discs ) based on the 1st generation project POLARIS at IOQ Jena PW area Complemented by running 150TW Ti:Sapphire laser Draco (upgrade to PW level in progress)

  8. From POLARIS (IOQ Jena) to PEnELOPE (HZDR) 2 × 2 × 2 m3 4 × 2 × 0.1 m³(table top) (a) pump setup Brightness: >1MW/cm2/sr Wavelength: 980 nm Brightness: ~100kW/cm2/sr Wavelength: 940 nm 4-pass pumping reduces reabsorption losses by 75% (b) laser material Yb:CaF2 Yb:FP glass (c) laser material cooling Repetition rate 1-10Hz Repetition rate 1/min Rod design Slab design Active Mirrors

  9. Nonlinear QED

  10. Laser-induced vacuum birefringence QED regime: • small photon energy (compared to mec2) • highest intensity(yet low compared to Ic=4·1029W/cm2) dispersive effect (vacuum polarization) calculated in lowest non-trivial order O(I) and O(ω2probe) -> birefringence phase shift

  11. Resulting ellipticity phase shift measurable ellipticity (intensity measurement) brilliant X-ray probe high intensity and interaction length TH. Heinzl, et al. Opt. Commun. 267, 318 (2006)

  12. Proposed experimental realization highest intensity see talk by I. Uschmann

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