- https://www.cells.es/ca/actualitat/agenda/esdeveniments-publics-dalba/elettra-i-fermi-estat-actual-i-perspectives-de-futur
- Elettra i FERMI Estat actual i perspectives de futur
- 2015-09-29T15:00:00+02:00
- 2015-09-29T16:00:00+02:00
- Prof. Dr. Alfonso Franciosi, President and CEO of Elettra-Sincrotrone Trieste S.C.p.A. and Department of Physics, University of Trieste, Trieste, Italy
- Quan
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Sep 29, 2015
de 15:00 a 16:00 (Europe/Madrid / UTC200) - On
- Auditori Maxwell d'ALBA
- Nom de contacte
- Enric Vinyals
- URL de l'esdeveniment
- Lloc web relacionat
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Elettra, one of the first third generation synchrotron radiation sources implemented in Europe, was upgraded with a new full-energy injector and since five years routinely operates in top-up mode both at 2.0 and 2.4 GeV, with increased source stability and availability (over 97% of the scheduled beamtime). This makes Elettra one of the only two sources that were not originally designed with top-up in mind and were later successfully upgraded to this most efficient operating mode. The 26 beamlines available at Elettra now include a new x-ray fluorescence beamline (XRF), partially funded by the International Atomic Energy Agency (IAEA), a new x-ray diffraction beamline (XRD2) dedicated to protein crystallography and a new x-ray diffraction beamline (XPRESS) devoted to high pressure studies. The construction of XRD2 and XPRESS, to be opened to external users this Summer, has been partially funded by the Indian Institute of Science of Bangalore (India). We will discuss the possible options for an upgrade of the Elettra source that will produce a twentyfold increase in brightness above 1 keV and would allow Elettra to remain competitive over the next decade.
FERMI, the only seeded EUV-soft-x-ray free-electron laser (FEL) user facility currently operating worldwide, was implemented by upgrading the S-band Linac - previously employed for injection into Elettra - to a maximum energy of 1.8 GeV, adding an X-band module, and implementing APPLE-II insertion devices as modulators and radiators in a single-stage FEL-1 source [1] already open to users, and a two-stages FEL-2 source [2] currently under commissioning. All undulators were constructed by Kyma, a commercial spin-off company of Elettra-Sincrotrone Trieste [3]. Both sources afford jitter-free pump-probe capabilities using two-colors configurations or exploiting the UV seed laser as a pump/probe [4]. Full control of polarization (from linear through circular) is also available [5]. At the moment FEL-1 is open to the international user community, providing stable, reproducible and fully coherent EUV pulses down to a 10 nm wavelength. We will illustrate the present and projected operation parameters of the FERMI FEL-2 source, which is already producing 10 mJ pulses at a wavelength of 4 nm in the first harmonic.
[1] E. Allaria et al., Nature Photonics 6 (2012); DOI:10.1038/nphoton.2012.233
[2] E. Allaria, et al., Nature Photonics 10 (2013); DOI:10.1038/nphoton.2013.277
[3] http://www.kyma-undulators.eu
[4] E. Allaria et al., Nature Communications 4 (2013); DOI: 10.1038/ncomms3476
[5] T. Mazza et al., Nature Communications 5 (2014); DOI: 10.1038/ncomms4648
