Author/Authors :
Barnyakov، نويسنده , , A.Yu. and Barnyakov، نويسنده , , M.Yu. and Bobrovnikov، نويسنده , , V.S. and Buzykaev، نويسنده , , A.R. and Gulevich، نويسنده , , V.V. and Danilyuk، نويسنده , , A.F. and Kononov، نويسنده , , S.A. and Kravchenko، نويسنده , , E.A. and Kuyanov، نويسنده , , I.A. and Lopatin، نويسنده , , S.A. and Onuchin، نويسنده , , A.P. and Ovtin، نويسنده , , I.V. and Podgornov، نويسنده , , N.A. and Porosev، نويسنده , , V.V. and Predein، نويسنده , , A.Yu. and Protsenko، نويسنده , , R.S.، نويسنده ,
Abstract :
We present our current experience in preparation of focusing aerogels for the Focusing Aerogel RICH detector. Multilayer focusing aerogel tiles have been produced in Novosibirsk by a collaboration of the Budker Institute of Nuclear Physics and Boreskov Institute of Catalysis since 2004. We have obtained 2–3–4-layer blocks with the thickness of 30–45 mm. In 2012, the first samples of focusing blocks with continuous density (refractive index) gradient along thickness were produced. This technology can significantly reduce the contribution from the geometric factor of the radiator thickness to the resolution of the measured Cherenkov angle in the FARICH detector. The special installation was used for automatic control of reagents ratio during the synthesis process. The first samples were tested using the digital radiography method and on the electron beam with the FARICH prototype.
