raith free 7:30-9:30 tonight -- need 30kV.
jwc at snf.stanford.edu
Fri Jan 18 13:14:33 PST 2008
I expect we should be able to work at 30 keV by mid week next week.
Need Gun section vacuum levels to be below 8E-010 Torr. I tested the
system to 25 kV this morning and vacuum levels are fine but emission on
the FE-GUN is still very low. It will take some time to run in this
FE-Gun tip, in normal practice we normally put on 250 hours before
running up the emission to normal values. This week and next I will be
slowly bringing the Extraction voltage upwards in 100 volts steps per
day till I hit my target values.
All the Best,
Lindsay Moore wrote:
> I need 30kV.
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