Construction and tests of experimental installations for electron-collision spectroscopy and for x-ray spectroscopy
Justus-Liebig-Universität Gießen
Experimental equipment for electron-ion collision spectroscopy and x-ray spectroscopy at the heavy ion storage rings ESR, CRYRING, and HESR at FAIR will be set up. Electron-ion collisions are an established tool for precision spectroscopy with an extremely broad range of applications. The combination of CRYRING with intense ion beams from the FAIR injector SIS and from the storage ring ESR offers world-unique experimental possibilities. Within the present project the intrumental preconditions for precision studies at the CRYRING cooler will be established. In addition, a transverse electron-target will be made available for electron-ion collision experiments at the storage rings of FAIR. A novel detector concept, i.e., silicon micro-calorimeters, will be used for precision x-ray spectrocopy. This technology holds the promise of offering a spectral resolving power which is an order of magnitude better than that of conventional semi-conductor detectors. A new detector array consisting of 96 pixels will be developed along with the pertaining data acquisition system and software.
Dr. Saskia Kraft-Bermuth
Prof. Dr. Stefan Schippers
I. Physikalisches Institut