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The SPARX (Sorgente Pulsata Autoamplificata di Radiazione X) FEL project is aiming at the realization of a coherent light source of X-rays covering the range of wavelengths (λ) ranging from 0.6 to 40 nm at fundamental harmonic, and will be able to reach the Ångstrom-region using the third and fifth harmonics where high power is still produced. SPARX covers a radiation region complementary to those of other existing or in construction facilities, such as FLASH (λ>6 nm), FERMI (10<λ<100 nm), X-FEL (0.1<λ<1.6 nm), LCLS (0.15<λ<1.5 nm), SCSS (λ>0.1 nm), and will produce, with special magnets, radiation up to the THz region. These ranges of wavelengths, showing some convenient overlap, have the advantage of providing sufficient access to users, expected to be proposing experiments in many fields of disciplines, and ensuring at the same time a beneficial level of competitiveness. Furthermore, the available site for the construction of SPARX does not limit the expansibility of the facility for future upgrades up to the Ångstrom-region in the first harmonic. |
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Science and technology with SPARX-FEL |
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Many advanced scientific and technological opportunities can be opened by the SPARX-FEL source based on: - Time-resolved X-ray techniques
- Coherent x-ray imaging
- Photon hungry measurements, which require extremely high photon fluxes.
- Spectromicroscopy
- Structural studies of biological systems, allowing crystallographic studies on biological macromolecules
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The SPARX-FEL Project is funded by the MIUR and the Regione Lazio. The University of Rome Tor Vergata, the CNR, ENEA and INFN cooperate in the fullfilment of the construction of a Free-Electron Laser X radiation source.
A Consortium, composed by the above mentioned Institutions, governs the facility and manages the financing of the SPARX-FEL infrastructure.
As per agreement, the University of Rome Tor Vergata hosts the facility; INFN is responsible for the injector of the SPARX-FEL; ENEA is responsible for the undulators and for the radiation diagnostics; CNR is responsible for the beamlines and for the experimental stations of the SPARX-FEL facility. |
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The construction of the Test Facility (SPARC), dedicated to a robust R&D program on ultra-brilliant electron beam Linacs, and on FEL physics. It was approved and funded in 2003 by the Italian Ministry of Research in the framework of the national strategic research program (FISR), and got additional support by the EUROFEL Projet within the 6th Framework Programme of UE. The test facility is now completed, hosting a 150 MeV electron beam Linac which feeds a 12 meters long undulator. The Linac has been commissioned and the tests of most critical FEL components have been successfully completed, including High-Order Harmonic Generation (HHG), based on the interaction between the laser beam and a gas target, used for the seeding experiment. During the last commissioning days the spontaneous emission from the undulators has been observed. |
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