Problem stsetch2 SNF 2010-04-06 10:22:35: Forward coil power unstable

mcvittie at snf.stanford.edu mcvittie at snf.stanford.edu
Tue Apr 6 13:51:25 PDT 2010


-Found Coil generator in fault state
-Turned generator off and on
-In STS control panel, reset generator in manual mode.
- Checked all rf connections on at the top of chamber coming out of the matching box. No problems found.  
- Ran Jim-Test-Etch for 16min for 2 runs. 
    -- In 1st run found one cycle where matching did not keep up.
    -- In 2nd run matching was fine throught the run.
- Checked generator during 2nd run and found warning light on.
	Jim  




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