ISA is a national (Danish) research centre using synchrotron radiation to probe the microscopic structure of matter mainly within physics, chemistry, biology, both on the atomic, molecular, cell and materials scale. ISA is owned and operated by Aarhus University since 1991.There are several facilities for the production and storage of ions, electrons and positrons. ASTRID: Ion/electron storage ring. ASTRID is the longest running facility and consists of a storage ring equipped with ion and electron injector systems. Ions of either polarity or electrons can be stored and accelerated. For experiments with stored ions, imaging, neutral particle and/or photon detectors can be used to study the effects of electron-cooling, laser-cooling or to measure ion lifetimes. Seven synchrotron radiation (SR) beamlines cover a wide photon energy range from the visible to the X-Ray region supporting a diverse SR research program. ELISA:Electrostatic ion storage ring. an electrostatic storage ring with an ion injector. ELISA is capable of storing a wider range of ions than ASTRID. Beam Extraction: 580 MeV electron beam