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Message ID: 289     Entry time: Tue Jun 8 09:27:54 2010
Author: Damien Gallop 
Type:  
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Subject: 15N4+ to TIGRESS 

User tuning began Sunday night. Beam physics expert chose to retire the IOS:Q1 defeat, as he did not know until yesterday that it existed. He discovered it after attempting to retune yesterday around noon from scratch and making a mess, notwithstanding Keerthi's clear instruction to leave it alone. He also does not know that Rick developed a tune for this, which provides cleaner transmission than the "book" tune. Pity. Presently there are some 75enA of beam at FC6. That should be enough. Note that there were some 90enA with the "defeat" tune in place, prior to changing the IOS tune. Canister is at ~-22"Hg, and MCIS pressure at ~7.0e-8 Torr at ~09:00.. ICR is tuning through presently.

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