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HK: Physik der Hadronen und Kerne
HK 11: Poster Session: Electromagnetic and Hadronic Probes
HK 11.16: Poster
Dienstag, 9. März 2004, 13:30–15:30, Foyer
The ANKE Silicon Tracking Telescopes as a tool for Polarimetry and Luminosity Determination — •A. Mussgiller — Institut für Kernphysik, Forschungszentrum Jülich, Germany
The first two ANKE Silicon Spectator Tracking Telescopes have been
installed several centimeter close to the COSY beam inside the
accelerator vacuum.
Their design is optimized for identification
and tracking of low energy spectator protons emitted from an
internal deuterium target.
In addition, the large acceptance at large scattering angles,
allows to extend the ANKE capabilities to study pp- and
pd-elastic reactions and to cross-check the obtained data,
detecting both particles.
The pp-free and quasi-free reaction is an appropriate tool to
determine the luminosity over the complete COSY energy range.
Moreover, it seems to be well-suited as a beam-polarimeter.
This technique is exploited together with the possibilities
offered by the acceleration of polarized deuterons at COSY, to
measure the d→p → (pp)1S0n charge–exchange
reaction near the forward direction.
This work is supported by the FZJ.