OLIS Logbook General
  General  Not logged in ELOG logo
Message ID: 118     Entry time: Fri Aug 7 14:42:29 2009
Author: Damien Gallop 
Type:  
Category:  
Subject: MWS 25Mg beam reduction 

Around noon, Keerthi adjusted the PE down to reduce the intensity of the Mg beam, as we are running with attenuators in. He ended up with about a 30% reduction, and improved the noise band by about 3x in the process.  Here is a repeat emittance scan. Both sets of slits are at 2.5mm position. I also took the opportunity to reset the separator stability equipment again.

Interesting, the beam took a step down a couple of minutes after hands-off. A tweak on the separator suggests that it's already about optimized. Well...

Sophia is back to tuning now.

Attachment 1: grab.jpa367.png  24 kB  | Show | Show all
Attachment 2: grab.zFr371.png  14 kB  | Show | Show all
Attachment 3: grab.PTd375.png  14 kB  | Show | Show all
Attachment 4: grab.DYQ403.png  19 kB  Uploaded Fri Aug 7 15:48:02 2009  | Show | Show all
ELOG V2.9.2-2455