User name Cusanno
Log entry time 22:37:23 on May30,2004
Entry number 124033
This entry is a followup to: 122977
keyword=RICH stabilityRICH shows stable operational condition, same resolution (sigma on
pion = 6.5 mrad, sigma on kaon 7.5 mrad), same number of photoelectrons (7.8) than 5 days ago and a week ago.
Actually the number of p.e., even if stable within the error (0.3 p.e.), it looks like slightly decreasing (8.3 -> 8.1 -> 7.8), as a possible CsI film degradation. I will investigate and monitor.
FIGURE 1
