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Message ID: 41     Entry time: Friday, October 28, 2011, 09:30
Author: chad fisher 
Category: South Hot-Cell 
Type: Repair 
Module: TM4 
Target/Number:  
Subject: Tube Heater + Leak Check C.B. 

Base Pressure: 0.0x10-4

Stable Leak Rate: 0.0x10-9

Leak check of tube heater circuit, containment box side was performed.

Initail check at tube heater block on source tray yeilded a response 60 sec after the 2 second spray of helium. The response was very small and recovered immediately.

This area was checked twice more but the reponse could not be recreated.

Joint at the waterblocks was tested with an intial 2 sec spray. No response after 60 sec.

Waterblock joint was tested again with a 4 second spray. No response after 60 sec.

 

 

 

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