Abstract for JLAB Technical Note 00-010

In this note some operational procedures applied to aerogel tiles are described. These tiles are currently installed in the Cherenkov diffusion box prototype built by INFN groups of ISS-Roma, Bari and Lecce and used to aid the design of a bigger detector to be installed in Hall-A. Particular attention is focused on the baking and cutting procedures of the tiles. Moreover the analysis of data obtained with baked aerogels shows a significant improvement in the average number of detected photoelectrons, when compared with results from unbaked tiles. A factor 4 increase in the number of produced photoelectrons is obtained.

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