OLIS Logbook General
  General  Not logged in ELOG logo
Message ID: 427     Entry time: Wed Aug 31 12:12:39 2011
Author: Damien Gallop 
Type:  
Category:  
Subject: 58Ni1+ from MWS to TITAN Setup 

Beam on FC6 drifted overnight. Touch up a few things, notably the EE. 25pA on FC6 presently. I also increased microwave power for effect.

Later... about 25pA on FC6. Somewhat noisy, but also stable. I left microwave at 700W. Beam handed over to ICR at ~13:15.

A note about mass flow controller. The new Hastings controllers do indeed shut off completely at zero setting. It should be noted that control in the sub-1sccm region is challenging. Move in 0.01 steps. I found that everything was fine down to 0.15sccm. The next step after that, i.e. to 0.14, closed the flow entirely. Not a crisis in this situation.

Attachment 1: Picture_37.png  50 kB  | Show | Hide all
Attachment 2: Picture_38.png  66 kB  Uploaded Wed Aug 31 14:17:24 2011  | Show | Hide all
ELOG V2.9.2-2455