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Message ID: 264     Entry time: Mon Aug 9 12:55:40 2010
Author: Frank 
Type: Notes 
Category: RefCav 
Subject: slow actuator values for both cavities 

both cavities @35 degrees +/- 5mK

 

slow actuator values

RCAV : 0.1890
ACAV : 0.1993

(.1890 V - .1993V) * 1180 MHz/V =  12 MHz difference

  • temperature of one cavity has to be tuned about ~12MHz with 6mK/MHz, so ~70mK
  • loosing lock @~+3V input to the VCO which should go up to at least 5V

anyway, the tuning range is only 10MHz in that direction, so can't lock both at the same time right now

frequency see here: VCO tuning

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