SACLA
From Wikipedia, the free encyclopedia
The SPring-8 Angstrom Compact free electron LAser, referred to as SACLA (pronounced さくら (Sa-Ku-Ra)), is an X-ray free-electron laser (XFEL) in Harima Science Garden City, Japan, embedded in the SPring-8 accelerator and synchrotron complex.[1][2] When it first came into operation 2011, it was the second XFEL in the world and the first in Japan.[3][4]
Like other XFELs, SACLA uses self-amplified spontaneous emission to achieve extremely high intensities of X-rays. SACLA uses in-vacuum, short-period undulators, which is one of the unique factors in its design that allows it to achieve sub-Ångstrom wavelengths of 0.6 Å at a relatively much shorter distance of 0.7 km, compared to other similar XFELs like LCLS (2 km) or the European XFEL (3.4 km).[3][5] An 8.5 GeV electron beam is used as the source.
