Research output: Contribution to journal › Article › peer-review
Investigation into Cherenkov light scattering and refraction on aerogel surface. / Barnyakov, A. Yu; Barnyakov, M. Yu; Bobrovnikov, V. S. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 876, 21.12.2017, p. 249-251.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Investigation into Cherenkov light scattering and refraction on aerogel surface
AU - Barnyakov, A. Yu
AU - Barnyakov, M. Yu
AU - Bobrovnikov, V. S.
AU - Buzykaev, A. R.
AU - Danilyuk, A. F.
AU - Katcin, A. A.
AU - Kirilenko, P. S.
AU - Kononov, S. A.
AU - Korda, D. V.
AU - Kravchenko, E. A.
AU - Kudryavtsev, V. N.
AU - Kuyanov, I. A.
AU - Onuchin, A. P.
AU - Ovtin, I. V.
AU - Podgornov, N. A.
AU - Predein, A. Yu
AU - Prisekin, V. G.
AU - Protsenko, R. S.
AU - Shekhtman, L. I.
N1 - Publisher Copyright: © 2017 Elsevier B.V. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/12/21
Y1 - 2017/12/21
N2 - The work concerns the development of aerogel radiators for RICH detectors. Aerogel tiles with a refractive index of 1.05 were tested with a RICH prototype on the electron beam on the VEPP-4M collider. It has been shown that polishing with silk tissue yields good surface quality, the amount of light loss at this surface being about 5–7%. The Cherenkov angle resolution was measured for a tile in two conditions: with a clean exit face and with a polished exit face. The number of photons detected was 13.3 and 12.7 for the clean and polished surfaces, respectively. The Cherenkov angle resolution for the polished surface is 55% worse, which can be explained with the forward scattering on the polished surface. A tile with a crack inside was also tested. The experimental data show that the Cherenkov angle resolution is the same for tracks crossing the crack area and in a crack-free area.
AB - The work concerns the development of aerogel radiators for RICH detectors. Aerogel tiles with a refractive index of 1.05 were tested with a RICH prototype on the electron beam on the VEPP-4M collider. It has been shown that polishing with silk tissue yields good surface quality, the amount of light loss at this surface being about 5–7%. The Cherenkov angle resolution was measured for a tile in two conditions: with a clean exit face and with a polished exit face. The number of photons detected was 13.3 and 12.7 for the clean and polished surfaces, respectively. The Cherenkov angle resolution for the polished surface is 55% worse, which can be explained with the forward scattering on the polished surface. A tile with a crack inside was also tested. The experimental data show that the Cherenkov angle resolution is the same for tracks crossing the crack area and in a crack-free area.
KW - Aerogel
KW - Particle identification
KW - Ring imaging Cherenkov counter
UR - http://www.scopus.com/inward/record.url?scp=85016577901&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2017.03.051
DO - 10.1016/j.nima.2017.03.051
M3 - Article
AN - SCOPUS:85016577901
VL - 876
SP - 249
EP - 251
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -
ID: 8971058