Mass production of hydrophobic silica aerogel and readout optics of Cherenkov light

Authors
Ishino, M Chiba, J En'yo, H Funahashi, H Ichikawa, A Ieiri, M Kanda, H Masaike, A Mihara, S Miyashita, T Murakami, T Nakamura, A Naruki, M Muto, R Ozawa, K Sato, HD Sekimoto, M Tabaru, T Tanaka, KH Yoshimura, Y Yokkaichi, S Yokoyama, M Yokogawa, H
Citation
M. Ishino et al., Mass production of hydrophobic silica aerogel and readout optics of Cherenkov light, NUCL INST A, 457(3), 2001, pp. 581-587
Citations number
11
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
457
Issue
3
Year of publication
2001
Pages
581 - 587
Database
ISI
SICI code
0168-9002(20010121)457:3<581:MPOHSA>2.0.ZU;2-H
Abstract
We have produced 500 l of hydrophobic silica aerogel for the threshold-type Cherenkov detectors to trigger kaons in the momentum region of 0.5-2.0 GeV /c. The refractive index of the products is 1.034 with piece by piece varia tion of +/- 0.004. The transmission length is found to be 25 +/- 4 mm at 40 0 nm. The details of the production scheme and the characteristics of the p roduced silica aerogel are reported. We also describe our studies of the li ght collection schemes of the aerogel Cherenkov counters. (C) 2001 Elsevier Science B.V. All rights reserved.