The third-generation electron storage ring Elettra, operated by the Elettra Laboratory of Sincrotrone Trieste S.C.p.A. since 1993, feeds 27 beamlines. Researchers from more than 50 different countries, selected by an international committee on the basis of the quality of their scientific proposals, access the facility each year. Since 2010 the Elettra electron storage ring, upgraded with a full-energy injector in 2007, operates in top-up mode for users. Elettra operates routinely at two different electron energies, 2.0 GeV and 2.4 GeV providing photons with energies from a few tenths eV to tenths keV. All of the most important photon (X-ray and IR) based techniques in the areas of spectroscopy, diffraction, scattering, imaging and lithography are present, including also the unique inelastic ultraviolet scattering (IUVS). Versatile experimental stations are maintained at the state-of-the art, offering unique means to carry out outstanding research in diverse fields and disciplines.

Storage Ring Specifications 2.0 GeV 2.4 GeV
Energy 2 [GeV] 2.4 [GeV]
Max Current 320 [mA] 150 [mA]
Circumference 260 [m] 260 [m]
Lattice Architecture 2 bend acromat 2 bend acromat
Number Of Straight Sections In Use 11 11
Average Beam Lifetime 27 [h] 32 [h]
Top-up Yes Yes
Current At Top-up 310 [mA] 150 [mA]
Beam Revolution Frequency 1157 [MHz] 1157 [MHz]
Emittance 7 [nm*rad]
Filling Pattern Any (single, few, multi etc.); most requested multibunch filled at 95% of the ring circumference (864 ns) and hybrid ( multibunch with a single bunch in the dark gap ) Any (single, few, multi etc.); most requested multibunch filled at 95% of the ring circumference (864 ns) and hybrid ( multibunch with a single bunch in the dark gap )
Harmonic Number 432 432
Bunch Length Or Duration 7 [mm]
Beam Size In Insertion Devices (hor x ver) X = 29 [um], Y = 6 [um] X = 6 [um], Y = 8 [um]
Beam Size In Bending Magnets (hor x ver) X = 139 [um], Y = 28 [um] X = 28 [um], Y = 30 [um]
Elettra - Sincrotrone Trieste S.C.p.A.
Strada Statale 14 - km 163,5 in AREA Science Park - Basovizza Trieste
TEL. +39 040 37581
FAX. +39 040 375 8029
call for proposals
  • September 15th, 2020 for experiments to be scheduled from January 1st to June 30th, 2021
  • Protein Crystallography: proposals can be submitted anytime, there is no deadline for the submission and evaluation is monthly.


a) Re-scheduling of beamtime: we are doing our best to keep our operation schedule. However, travel restrictions might affect your beamtime. If you wish to postpone beamtimes originally scheduled in May and June 2020, please contact useroffice@elettra.eu AND the relevant beamline coordinator

The Elettra User Office and/or the relevant beamline coordinator will come back to you as soon as further updates are available. 
More info here

b) COVID-19 Elettra Rapid Access proposals: researchers from all over the world have now the possibility to remotely access a group of relevant Elettra beamlines, where to perform their experiments on a priority basis. Full details here.

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