Aerogel RICH for the upgrade of the BELLE spectrometer

by Rok Pestotnik (Institut Jozef Stefan Ljubljana, Slovenija)

Friday 10 Dec 2004, 11:00 → 12:00 Europe/Zurich

13/2-005 (CERN)

A proximity focusing Ring Imaging Detector using aerogel as the radiator is being studied for the upgrade of the Belle spectrometer at the KEK-B factory. The detector will be mounted in the forward region of the Belle spectrometer. It should provide an excellent π/K separation over the kinematic region up to 4~GeV/c. The design choices are driven by the capability for the detection of around 10 photons per each ring image at least for one of the particle species, with a single photon resolution of around 11~mrad. Moreover, the proposed photon detector should operate in a high (1.5~T) magnetic field region. To meet the requirements, the counter should consists of highly transparent aerogel radiator with a photon detector with a large photosensitive area. In the seminar the design requirements, choices of the detector components as well as different prototypes studies will be presented.



Organiser(s): Ariella Cattai