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Message ID: 171     Entry time: Wednesday, April 24, 2024, 14:26
Author: Adam Newsome 
Category: Elevation Jack 
Type: Standard Operation 
Subject: Lid up operation (second) - 2024 

Due to an issue with resonator latching, there was a need to raise the cyclotron lid a second time this shutdown.

The plan at first was to raise the lid by small increments (approximately 1mm at a time up to approximately 25mm) while RF group performed some checks.

After the RF groups completed their checks, it was determined that the lid needed to be raised the full extent.

The starting master synchro count originally was 52, and it was 2480 at the time when the decision was made to fully raise the lid.

The lid raised entirely with zero stoppages or observed issues. No abnormalities observed with any jack station.

The lid was fully raised by 1:49pm with a master synchro count of 47383.

 

See attached summary.

Attachment 1: Elevation_System_Checklist_-_2024_-_Second_Lid_Up.pdf  102 kB  Uploaded Tuesday, April 30, 2024, 15:55  | Show | Hide all
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