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Message ID: 554     Entry time: Thursday, November 21, 2013, 12:12
Author: Anders Mjos 
Category: South Hot-Cell 
Type: Standard Operation 
Module: TM3 
Target/Number: NiO#2 
Subject: End of beam target inspection - ANODE does not hold 250V 

The target was inspected by Chad and Anders in the Hot Cell. Electrical megger tests were done during the assembly. It was found that Insulators No 3 (ITD0311) and No 2 (ITD0310) failed to hold voltage after the run.

  [V] [kOhm]
ANODE - HS 40 21
ANODE - TGT 100 55
HS - TGT 100 55
Lid removed    
ANODE - HS 40 21
ANODE - TGT 90 41
HS - TGT 100 55
Target removed    
ANODE - HS 245 139
No 3 Ins - TBHT 0 0
No 2 Ins 110 64
No 2 Ins removed    
ANODE - HS 540 OL

EE to HS was measured OL at 1000  V.

Photos can be found on DocuShare

 

 

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