AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Entry  Mon Sep 20 11:45:45 2021, JM RSS ML, CARME installations 6x
    Reply  Tue Sep 21 08:20:39 2021, ML, CARME installations 
Message ID: 73     Entry time: Tue Sep 21 08:20:39 2021     In reply to: 72
Author: ML 
Subject: CARME installations 

 

Quote:

Ion pump, RGA and additional gauge installed on the chamber.

Our gauge is the one mounted above the NEG feedthrough, Michael's gauge is mounted below the feedthrough. Ion pump too large to install on the top of the vessel, sufficient room on flange immediately next to this top flange.  

Baking frame assembled around chamber, all required components fit within the baking volume. Insulation on baking tray and heaters set up and connected to pi controller. 

Pumpdown begun at 16:30. Turbopump on at 16:40. Unable to reach the required pressure for the hot cathod gauge before leaving the lab ~18:10. Suggests possible leak, pressure and leak check tomorrow morning.

MACOR strain relief and plastic strain relief tested in edinburgh compared (see image). MACRO hole size is 2x bigger than the test piece, suggests mix up between radius and diameter for MACOR strain reliefs. 

Vacuum group confirmed temperature limits for the RGA of 200°C without the electronics removed and 80°C with electronics installed.

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