Title of article :
Tests of FARICH prototype with precise photon position detection
Author/Authors :
Barnyakov، نويسنده , , A.Yu. and Barnyakov، نويسنده , , M.Yu. and Basok، نويسنده , , I.Yu. and Blinov، نويسنده , , V.E. and Bobrovnikov، نويسنده , , V.S. and Borodenko، نويسنده , , A.A. and Buzykaev، نويسنده , , A.R. and Danilyuk، نويسنده , , A.F. and Degenhardt، نويسنده , , C. and Dorscheid، نويسنده , , R. and Finogeev، نويسنده , , D.A. and Frach، نويسنده , , T. and Gulevich، نويسنده , , V.V. and Karavicheva، نويسنده , , T.L. and Kasyanenko، نويسنده , , P.V. and Kononov، نويسنده , , S.A. and Korda، نويسنده , , D.V. and Kravchenko، نويسنده , , E.A. and Kudryavtsev، نويسنده , , V.N. and Kurepin، نويسنده , , A.B. and Kuyanov، نويسنده , , I.A. and Muelhens، نويسنده , , O. and Onuchin، نويسنده , , A.P. and Ovtin، نويسنده , , I.V. and Podgornov، نويسنده , , N.A. and Predein، نويسنده , , A.Yu. and Prisekin، نويسنده , , V.G. and Protsenko، نويسنده , , R.S. and Razin، نويسنده , , V.I. and Reshetin، نويسنده , , A.I. and Schulze، نويسنده , , R. and Shekhtman، نويسنده , , L.I and Talyshev، نويسنده , , A.A. and Usenko، نويسنده , , E.A. and Zwaans، نويسنده , , B.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
4
From page :
88
To page :
91
Abstract :
In June 2012 a FARICH prototype from Philips Digital Photon Counting (PDPC) based on a photon camera with dimensions of 200×200 mm has been tested at CERN. Remarkable particle separation has been achieved with a 4-layer aerogel sample: the π/K separation at a 6 GeV/c momentum is 3.5σ, the μ / π separation is 5.3σ at 1 GeV/c. The analysis of the data has shown that the main contribution to the accuracy of the ring radius measurement comes from aerogel. The development of focusing aerogels is proceeding in two main directions: tuning of production technology of multilayer blocks and development of a new production method with continuous density (refractive index) gradient along the block depth. The beam test was carried out in December 2012–January 2013 at the electron beam test facility at the VEPP-4 M e+e− collider. The goal of this test was to measure different single layer and focusing aerogel samples, both multilayer and gradient. Aerogel samples were tested with a PDPC FARICH prototype. A part of DPC SPADs in each pixel was disabled to form an active area of 1×1 mm2. The collected data proved that gradient aerogel samples focus Cherenkov light.
Keywords :
aerogel , Ring imaging Cherenkov counter , Particle identification
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
Serial Year :
2014
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
Record number :
2196614
Link To Document :
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