Subject: Any User may now operate the RAITH system up to 30 keV acceleration voltage. FE_GUN adjustments aslo performed today.
From: James Conway <>
Date: Fri, 01 Feb 2008 16:30:19 -0800

Good Afternoon Raith Community:

The FE-Gun section of the column has now reached suitable vacuum levels in the mid E-0100 Torr level that we can comfortably employ the higher acceleration voltages for exposures.
This morning I brought up the Extraction Voltage to the FE-Gun and we will soon be approaching the emission level that we had before we shut down for the holiday.  Users will likely notice the decrease in writing time for same patterns written a few weeks ago.

Have a nice weekend,

James Conway