, Volume 52, Issue 3, pp 759-764
Date: 26 Sep 2007

Refractive index dispersion law of silica aerogel

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This paper presents measurements of the refractive index of a hygroscopic silica aerogel block at several wavelengths. The measurements, performed with a monochromator, have been compared with different parameterisations for n(λ), in order to determine the best chromaticity law for the aerogel. This is an important input for design and operation of RICH detectors with silica aerogel radiator.


29.40.Ka; 78.20.Ci