Subject: Shutdown raith SNF 2008-05-24 13:16:53: Vacuum is lost
Date: Sat, 24 May 2008 13:16:53 -0700

When I was using the SEM, suddently, the status of Vac on the right moniter showed "off",
and the electron gun shut down by itself. I also can't unload my sample because the
Raith program showed "The vacuum in the stage chamber is not ready. Please start pumping
and, if ready, press RETRY?" I retry again and again, but I can't fix this problem.