Speaker
Description
The Compressed Baryonic Matter (CBM) experiment is a future heavy ion (HI) experiment planed to
be installed at the Facility for Anti-proton and Ion Research (FAIR) which is currently under
construction close to Darmstadt/Germany. The uniqueness of CBM is the operation at, for HI
experiments, unprecedented interaction rates of up to 10 MHz for Au+Au collisions at beam energies
between 2 and 12 AGeV imposing enormous rate capability requirements for all subsystem detectors.
The main subsystem for charged hadron identification is a 120 m2 large TOF wall composed of Multigap
Resistive Plate Chambers (MRPC) with different granularities and electrode materials depending
on their experimental demands. An effect which comes along with operation of gaseous detectors at
high particle fluxes (up to 30 Hz/cm2) is an increased gas-aging and -pollution.
An status overview on the CBM TOF project and our strategy how to mitigate counter aging will be
discussed during this conference.
