Berlin 2005 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 28: Instrumentation und Anwendungen

HK 28.2: Gruppenbericht

Dienstag, 8. März 2005, 14:30–15:00, TU MA041

Towards the HESR at FAIR: Machine experiments at COSY — •Raimund Tölle — Forschungszentrum Jülich

The synchrotron and storage ring COSY can store protons from 300 MeV/c and deuterons from 535 MeV/c and accelerate to 3700 MeV/c. The possibility to perform experiments with polarized or unpolarized protons / deuterons (in this momentum range) combined with enhancing the beam quality by electron and stochastic cooling is unique in Europe.

The High Energy Storage Ring (HESR) of the Facility for Antiproton and Ion Research (FAIR) which is planned at the GSI in Darmstadt will be equipped with electron and stochastic cooling as well. It shall be contributed to FAIR by a consortium of the COSY group of the Research Center Juelich, Uppsala University, and GSI. To meet the demanding requirements for this 1.5 GeV/c - 15 GeV/c antiproton storage ring with its two user modes (high luminosity mode or high resolution mode) the validity of several theoretical simulation codes has to be checked. The HESR will be described and the feasibility of benchmarking experiments at COSY in the fields of electron cooling, stochastic cooling, high harmonic cavity, polarisation build-up via spin transfer will be discussed.