000001194 001__ 1194
000001194 005__ 20181031224123.0
000001194 037__ $$aBELLE2-CONF-PROC-2018-023
000001194 041__ $$aeng
000001194 100__ $$aRok Pestotnik
000001194 245__ $$aFront end electronics of the Belle II Aerogel Ring Imaging detector
000001194 260__ $$a$$c2018-10-31
000001194 300__ $$amult. p
000001194 520__ $$aIn the forward end-cap of the Belle II spectrometer, a proximity focusing RICH with aerogel radiator will be used for charged particle identification. The detector, consisting of 4~cm aerogel radiator, 16~cm expansion volume and a photon detector with 420 Hybrid Avalanche Photo Detectors is mounted in a very confined space between central drift chamber and electromagnetic calorimeter, leaving only 5~cm space for the readout electronics. A low power front end read-out board is mounted at the back side of each of the photo sensor. All the boards have been tested before the installation in the spectrometer. In the contribution, the design and first experiences with the boards are presented.
000001194 6531_ $$aProximity focusing RICH with an aerogel radiator
000001194 6531_ $$aHybrid Avalanche Photo Detector
000001194 6531_ $$aFront End Electronics
000001194 8560_ $$frok.pestotnik@desy.de
000001194 8564_ $$uhttps://docs.belle2.org/record/1194/files/BELLE2-CONF-PROC-2018-023.pdf