The ASTRID infrastructure constitutes an ensemble of experimental equipment centred around the synchrotron ASTRID for research in areas such as chemistry, physics and biology/medicine. Access is provided to four major installations: 1) the magnetic synchrotron/storage ring ASTRID operating as an ion storage ring, 2) the low-energy electrostatic ion storage ring ELISA, 3) the UV and soft X-ray (2-1000 eV) synchrotron radiation stations at ASTRID, 4) the extracted 580 MeV electron beam. The opportunity for research with stored atomic and molecular ion beams (both positive and negative polarity) in ASTRID and ELISA is only complemented a few places in the world.
The interaction of ions with electrons or laser light can be studied using various detectors. The synchrotron-radiation beamlines, and in particular the associated experimental stations, also include unique facilities on the European scene. This holds for the undulator stations, but also for the UV facility (including Circular Dichroism) and the soft X-ray microscope. The extracted electron beam fulfils the need for test beams for development of detectors in particle physics. ASTRID operates about 40 weeks per year. The lifetime of the electron beam in ASTRID is in excess of 24 hours resulting in only one injection per day. For further details, see the ISA home page.
Application for access, with support from the ARI programme, follows an annual call for proposals (in Europhysics News), after which a user selection panel selects proposals based on scientific merit. Preference will be given to new users. For details, see the ISA home page. In addition, there are opportunities for short or urgent test experiments.
Dr. Soren Pape Moller, ISA - University fo Aarhus, Ny Munkegade, DK-8000 Aarhus C, Denmark