Comment raith SNF 2005-03-09 17:35:30: NO OPERATIONS ABOVE 20 kV

jwc at snf.stanford.edu jwc at snf.stanford.edu
Wed Mar 9 17:35:30 PST 2005


RECOMMEND TO USERS TO BRING SYSTEM UP AT 10 kV AND AFTER 20 MINUTES TO ALLOW SYSTEM TO STABILIZE THEN GO DIRECTLY TO 20 kV.
Today I tested the system ramping from 10, 15, 20, 22, 25, 27, 28 for ten minutes each and allowed to soak at 28 kV for ~ 30 minutes.  Then ramped to 30 kV.  No EHT TRIPS ENCOUNTERED.  30 kV OPERATION WAS SLIGHTLY UNSTABLE IN EMISSION AND WITH SLIGHT ELEVATED VACUUM LEVELS. (GUN 1.8E-009 mbar, 1.3E-009 Torr.)  
James Conway 03092005:17:33:00




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