User name Seonho Choi
Log entry time 00:01:15 on December 8,2006
Entry number 190288
keyword=Beam unstable beyond 50uASeeing stable 50uA beam, when we asked 70 or 80, beam became unstable. MCC says that they have problems with BLM etc. Finally, we ended up asking stable 50uA. The grapped screen shows the history of beam current for the last two hours. The y-range is from 0 to 100 uA.
FIGURE 1
