Garth's aerogel calibration report:
Garth has calibrated the aerogel. In his report he discusses the method, the observation of a slow gain increase over the length of the experiment, demonstrates the uniformity of the detector response in (x,y), measures the index of refraction, and recommends a cut of 3 pe's to obtain high efficiency for pions and significant rejection of protons.
Garth's report (.ps)