CRYRING@ESR Detectors Workshop

The expected performance of the Cryring will provide the possibility to investigate direct reactions with cooled and stored exotic beams in inverse kinematics. In particular, the energy regime of the Cryring will perfectly fit to the demands for the investigation of one- or few-nucleon transfer reactions. A new and innovative detector setup, including UHV compatible Si detectors, located...

The combination of a gas jet and bare ions stored at low energy as provided by the CRYRING allows to study e.g. proton or alpha capture reactions in the astrophysically relevant energy window. For this purpose a versatile diagnosis chamber is currently beeing designed that allows the detection of reaction products on various tracks after the dipole downstream the gas target. The current...

First experimental beamtimes have been performed at the Cryogenic Storage Ring (CSR) of the Max Planck Institute for Nuclear Physics (MPIK) in 2015. The CSR is a fully electrostatic machine operating at ~6 K temperature and at typical ion energies of ~100...0.5 keV/u. The experimental programme focuses on atomic and molecular physics. Product particle detection is challenged by, both, the low...

The FISIC experiment ("Fast Ion-Slow Ion Collisions") constitutes a novel attempt to better understand the ion-ion interactions occurring in the so-called intermediate collision regime, where the speed of the active electrons is comparable to the relative target-projectile speed. Under these conditions, the cross sections of the involved charge-exchange processes are largest, and of similar...

The low energy storage ring CRYRING is currently being set up as the first storage ring of the upcoming accelerator facility FAIR at GSI. CRYRING features an electron cooler to cool stored ions and thus achieve a low momentum spread of the beam. To determine the velocity of the ions a precise knowledge of the acceleration voltage of the electron cooler is essential. In earlier measurements of...

A dedicated laser-induced fluorescence detection region needs to be impleneted into the first part of the experimental section of CRYRING (section 9). Additional supporting infrastructure is also needed to facilitate stable and safe use of lasers in and around CRYRING. It includes a laser laboratory, laser beam transfer tubes as well as coupling platforms with optics around the ring. The...

CRYRING offers the possibility to perform high precision laser spectroscopy experiments on a range of highly charged heavy ions. The wavelengths of fluorescence photons emitted in these experiments range from the UV (e.g. transitions in singly charged magnesium and beryllium ions at 280 nm and 313 nm, respectively) to the near infrared (e.g. in measurements of dielectric recombination in...

CRYRING offers the possibility to perform laser spectroscopy experiments in the extreme ultraviolet (XUV) region with highly charged ions. Therefore a table-top, high repetition rate, and high photon flux XUV source is needed. The talk presents recent developments of such a tailored XUV source, based on high harmonic generation of a high repetition rate femtosecond fiber laser system, as well...