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UVSOR is one of the highest-brilliance light sources in the extreme-ultraviolet region among the synchrotron radiation facilities with electron energies of less than 1 GeV. The natural emittance of the UVSOR-III storage ring is as low as 17.5 nm-rad after the successful completion of the storage ring upgrade project (the UVSOR-III project) in 2012.
@Eight bending magnets and five insertion devices are available as synchrotron light sources at UVSOR. As of 2016 there are a total of fourteen operational beamlines, which are classified into two categories. Eleven of them are the so-called gOpen beamlinesh, which are open to scientists from universities and research institutes belonging to the government, public organizations, private enterprises and also those from foreign countries. The remaining three beamlines are the gIn-house beamlinesh, and are dedicated to the use of research groups within Institute for Molecular Science (IMS). @There is one soft X-ray station equipped with a double-crystal monochromator, seven extreme ultraviolet and soft X-ray stations with grazing incidence monochromators, three vacuum ultraviolet (VUV) stations with normal incidence monochromators, two infrared (IR) stations equipped with Fourier-Transform interferometers, and one free electron laser beamline with no monochromator, as shown in the appended table (see below) for all available beamlines at UVSOR in 2017. The details of the updates for several beamlines are the followings. @BL2A equipped with a double-crystal monochromator, where users can use the highest energy photons in UVSOR (~4 keV), has been used mainly for photoabsorption spectroscopy. Since there are users who want to evaluate the sample surface, a new chamber for X-ray photoemission spectroscopy (XPS) has been attached to BL2A during the shutdown of 2017. XPS measurement is now available.
