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Message ID: 2739     Entry time: Friday, January 03, 2025, 10:41
Author: David Wang 
Category: ITW 
Type: Standard Operation 
Module: TM4 
Target/Number: UCX46 
Subject: ITW primary and secondary vacuum vessel leak check for 2025 shut down 

ITW primary and secondary vacuum vessel leak check for  2025 shut down has been done. Also,TM4 internal water line helium pressure test has been finished.  Both results are normal. There are two small old leak on EXit 1 and Exit2 module top plate  o-ring under 1Xe-8 atm.cc/sec which we knoew in past years test. resin spray on leak  area reduce the leak ratee below 5Xe-9 atm.cc/sec. No concern on these small leak.   See attachment  for detail results.

Attachment 1: ITW_primary_and_secondary_vacuum_leak_check_2025.pdf  48 kB  | Show | Show all
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