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Message ID: 154     Entry time: Thursday, April 23, 2015, 13:40
Author: Isaac Earle 
Category: Development 
Type: Target 2 
Specific: Other 
Subject: T2 Protect Monitor Elevation Adjustment 

- T2 Protect Monitor moved from the beam line to the hot cell on Monday April 20th
- Elevation of the plate center measured at 1839.0mm from the base of the vacuum flange
- Old monitor cassette photographed (attached).  Heat mark noticed on exit side approximately 10mm above and 5mm south of plate centers (cause unknown, and no matching mark on entrance side)
- Old monitor cassette removed, new one installed.  New elevation 1836.1mm (2.9mm upward shift - 3.0mm was requested)
- Electrical check performed by Probes Group on April 22 - They reported that it looks normal
- T2 Protect Monitor returned to the beamline April 22 in the evening.  Cables plugged in and flange bolts installed
- Vacuum pumped down normally on April 23 in the morning
- Probes group repeated the electrical check after installation from the 1A mezzanine - They reported that it looks normal
- The old monitor cassette will be left in the hot cell for possible future use

Attachment 1: Old_T2_Protect_Monitor_(removed_Apr_22_2015)_-_Entry_Side.jpg  222 kB  | Show | Hide all
Attachment 2: Old_T2_Protect_Monitor_(removed_Apr_22_2015)_-_Exit_Side.jpg  229 kB  | Hide | Hide all
Old_T2_Protect_Monitor_(removed_Apr_22_2015)_-_Exit_Side.jpg
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