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Message ID: 1095     Entry time: Tuesday, October 06, 2015, 21:12
Author: Aurelia Laxdal 
Category: South Hot-Cell 
Type: Repair 
Module: TM3 
Target/Number:  
Subject: TM3 service cap inspection in target hall 

David Wang and I did the service cap inspection in target hall: see WP I2015-10-06-10.<br>

Signs of sparking were seen underneath 3 insulators: E ("Cavity"), A ("Oven+") and B ("Oven -") at the pair water lines coming out of the  feed-through and going to the HV chase. Specifically one water line of E is very close to the feed-through insulator (2-3mm gap) and here the sparking sings are more prominent: see picture.

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