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DAΦNE-Light is the Synchrotron Radiation Facility at the INFN-Frascati National Laboratory (Rome, Italy). The synchrotron radiation (SR) beam from a wiggler installed on the DAΦNE storage ring is split by a grazing incidence Au-coated mirror (θi=40 mrad, cut-off energy ~ 800 eV), in order to provide the X-ray and UV beam lines. The reflected UV radiation travels through the UV beamline and ends in SOURCE, a three-channel experimental set up. The first light path is a near UV/VIS experimental apparatus, providing intense monochromatic radiation (~ 1011 ph/s in a 2x7 mm spot size) in the 200-650 nm spectral range. The second light path is the VUV channel operating in the 120-400 nm. The third channel is a wide-band UV/VIS radiation source. The beam line has been partially operating since 2009 using the intense SR emission of DAΦNE - a 0.51 GeV storage ring with a routinely circulating electron current higher than 1 A - in parasitic and dedicatedtime mode. This very high current produces the higher UV SR photon flux in the world. SOURCE is open to users applying UV irradiation to biological materials, rocks or meteorites, material science, photo-biology, detector testing and development, medical applications, calibration of space instrumentation. SOURCE is devoted to experiments requiring very intense radiation beams or to calibrate large space optical systems in the VIS/UV/VUV, owing to the large cleanroom available at the end of the beam line.
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