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Message ID: 53     Entry time: Friday, July 27, 2012, 14:48
Author: Isaac Earle 
Category: Repair 
Type: Target 1 
Specific: Target 
Subject: T1-MK1 Target Repair Update 

- T1MK1 target transferred from storage pit to hot cell (max field: 4700 μSv/hr @ 0.5m)

- Protect monitor with incorrect wiring removed (20μSv/hr on contact, 60cpm contamination on 44-2 meter)

- Scott Kellog fixed the wiring and returned the protect monitor (correct wiring schematic is TDE0301E, previously used incorrect schematic D10649)

- Installed new protect monitor on target

- Profile monitor was found to have broken wires and will be replaced with new more robust design (0.005" thick gold coated molybdenum wires)

- Bill Rawnsley confirmed that protect and profile monitor wiring harnesses are wired correctly using resistor packs

- Bill was double-checking the wiring of the new profile monitor before installation and found that it had been wired incorrectly.  Scott K. will fix the wiring and return the monitor mid next week for installation.

- Leak check was performed on the target and confirmed that all seals and target cassettes are leak tight

 

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