Jun 13 – 15, 2012
LAL Orsay
Europe/Paris timezone

Test beam experiment with FARICH prototype

Jun 14, 2012, 11:20 AM
20m
Amphithéâtre Pierre Lehmann (LAL Orsay)

Amphithéâtre Pierre Lehmann

LAL Orsay

Centre Scientifique d'Orsay - Bat 200 91898 Orsay cedex FRANCE
Oral presentation SiPM applications

Speaker

Mr Mikhail Barnyakov (Budker Institute of Nuclear Physics)

Description

The FARICH ('Focusing' Aerogel RICH) system is suggested for particle identification at Super Charm-Tau Factory project currently being developed at Budker Institute of Nuclear Physics (Novosibirsk, Russia). The only candidate for the photon detectors of the FARICH are SiPMs. The FARICH prototype was tested with 1 GeV electrons on the test beam line at VEPP-4M collider. Multilayer focusing aerogels as well as a single layer aerogel were tested. The radius resolution of Cherenkov ring has been obtained and agrees well with the predicted value. The photon detector of the prototype consisted of 32 SiPMs with active area 2.1x2.1 mm produced by the CPTA company (Moscow, Russia). The custom made discriminator boards and the CAEN V1190B multihit TDC were used for the signal readout. The timing resolution for single photons varies from 350 to 900 ps for different channels in the presence of a very high dark rate (up to 10 MHz per channel). The dependence of timing resolution from dark rate was investigated. The new photon detector for the FARICH prototype with better coordinate resolution is under development. This detector will consist of 64 SiPMs with active area 1.28 mm^2. The main purpose of this detector will be detailed measurement of 'focusing' aerogel radiators parameters.

Primary author

Dr Evgeniy Kravchenko (Budker Institute of Nuclear Physics)

Co-authors

Mr Alexander Barnyakov (Budker Institute of Nuclear Physics) Mr Alexey Buzykaev (Budker Institute of Nuclear Physics) Prof. Alexey Onuchin (Budker Institute of Nuclear Physics) Mr Artiom Borodenko (Budker Institute of Nuclear Physics) Dr Danilyuk Alexander (Boreskov Institute of Catalysis) Mr Gulevich Vasili (Budker Institute of Nuclear Physics) Mr Ivan Basok (Budker Institute of Nuclear Physics) Mr Ivan Kuyanov (Budker Institute of Nuclear Physics) Mr Ivan Ovtin (Budker Instiute of Nuclear Physics) Mr Mikhail Barnyakov (Budker Institute of Nuclear Physics) Mr Sergey Kononov (Budker Institute of Novosibirsk) Mr Viacheslav Prisekin (Budker Institute of Nuclear Physics) Mr Victor Bobrovnikov (Budker Institute of Nuclear Physics) Prof. Vladimir Blinov (Budker Institute of Nuclear Physics)

Presentation materials