Measurement of Radiation Damage on Silica Aerogel \v Cerenkov Radiator

Preprint

11 April 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9604004

Abstract

We measured the radiation damage on silica aerogel \v Cerenkov radiators originally developed for the $B$-factory experiment at KEK. Refractive index of the aerogel samples ranged from 1.012 to 1.028. The samples were irradiated up to 9.8~MRad of equivalent dose. Measurements of transmittance and refractive index were carried out and these samples were found to be radiation hard. Deteriorations in transparency and changes of refractive index were observed to be less than 1.3\% and 0.001 at 90\% confidence level, respectively. Prospects of using aerogels under high-radiation environment are discussed.

Keywords

CERENKOV RADIATORS
DAMAGE ON SILICA
RADIATION DAMAGE
REFRACTIVE INDEX
SILICA AEROGEL
RADIATION HARD

All Related Versions

Version 1, 1996-04-11, ArXiv
Published version: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 382 (3), 441.

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