Abstract

A Focussing Disc DIRC with dispersion correction is a novel Cherenkov detector design which is proposed for the PANDA experiment at FAIR. Cherenkov photons travel inside a circular disc towards the edge and then enter into one of circa hundred optical elements around the rim that correct the chromatic dispersion of the Cherenkov light and focus the photon onto the element readout plane. This design can achieve positive kaon identification in the momentum range of up to 4 ÷ 6 GeV/c in the confined space and high magnetic field of the PANDA target spectrometer endcap.

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