Run Meeting: February 19th, 2018
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4:00PM Run Meeting, Counting house meeting room (200C)
Summary of weekend: Beam came back at the turn of swing shift on Friday. Beam had requested current, but lacked stability. We run in these conditions (variable beam stability) most of the weekend...
... until Sunday night excitment: VESDA started to give alarms around 11pm; request beam off (in case); ( + right Q1 PS had gone off, after communication went down;) -> first short access for a visual check; => smell from labyrinth, haze in the hall; -> went to controlled access for full investigation: Summary at https://logbooks.jlab.org/entry/3534243 ;
Beam taken back on Monday morning for following tasks:
Work at injector to fix low energy tails
RF recovery;
In the meantime, controlled access: investigate cause of yesterday's incident. Right Q1 power supply out of order, and repairs not trivial: either repair the existing unit, or swap it with another one (https://logbooks.jlab.org/entry/3534446) => We will have to go to controlled access during the day for repairs, and run during swing and owl with Left arm only for the few next days.
Plan: Wait for beam back, and resume production on Kin 15...
Slides
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