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Message ID: 127     Entry time: Friday, January 22, 2021, 14:30
Author: Adam Newsome 
Category: Cyclotron 
Type: Standard Operation 
Subject: Lid up operation - 2021 

The lid up operation took place on Jan. 22, 2021.

The system was not energized well ahead of time to allow to "warm up", as is usually done.


Starting Master Synchro value: 44

After gap set on all jacks, master synchro: 131

 

Notes on Jacks: Watch Jack 11, cause a few trips during lid down but was able to run again without jogging synchros

 

Jack 5 and 11 had spikes early but no trips

Jack 2 and 3 lagged early and caused trips (but no spikes)

After jogged 2 and 3 back, still had issues with 7,9,11

7, 9, 11 were jogged to match and then ran for half an inch, then 1, 5, 11 showed some spread

Lowered all the way down and spread was much improved (starting Master Synchro reading: 3)

Started raising again and went much smoother

Jacks 7 and 11 showed some occasional noise on readback

stopped to inspect vacuum seal (12:30 - Master Synchro 7016)

No trips on second attempt going up until 40"

Jack 1 kept falling behind, causing Jack 2 to trip

 

Finished at 2:03PM, Master Synchro at 47406

Meter stick did not reach ceiling (off by 1/4")

 

The meter stick versus limit switch discrepancy could be due to the stick shifting slightly by accident (due to vibrations or accidentally being bumped by someone). The limit switches were trusted as it would be highly unlikely for them to both disagree with the meter stick simultaneously if there was an adjustment setting issue with them.

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