This EFOS maser typically runs with the two vacuum pressures below 1.5 X 10-6 Torr. (as measured via the ion pump current)
Maximum should not exceed about 3.6 X 10-6 Torr for either pump. The internal vacuum will drop to about 1 X10-7 Torr if the Hydrogen to the disassociator is turned off. One pump pumps the "internal" which is the maser bulb, the disassociator, and the connecting lines, so mainly just pumps Hydrogen. (fairly low volume) The "external" pump pumps the insulating outer shell and the interior of the maser cavity. It pumps any leakage or outgassing that occurs. (much larger volume) Pumps are 20 LPS varian triodes. Corby Dawson ____________________________________________________________ Moms Asked to Return to School Grant Funding May Be Available to Those That Qualify. http://thirdpartyoffers.juno.com/TGL3141/4c7fdedb5d30e0abfm04duc _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
