Leonid, Betsy

Between yesterday afternoon and this morning, we obtained 4 more good ETMx charge measurements using the optical lever.  Soon to be attached are the trends of the data compared to the previous JAN and APRIL measurements.  Note, as has been stated over the last few days, the LL quadrant of the ESD does not appear healthy, and therefore is the only data point showing a lot of scatter.  This morning Richard went to End X and found that it is shorted.  We suspect it is likely shorted at the feedthru which is still the "old" style.  We plan to swp the feedthru and re-terminate the ESD in-vac cable during next weeks vent - this will bring it up-to-date with the EY ESD and both L1 ESD connections.