ligo-ex ligo-ds
  Richardson Lab Experimental Log  Not logged in ELOG logo
Message ID: 432     Entry time: Sun Sep 1 16:17:40 2024
Author: Luke 
Type: Update 
Category: VAC 
Subject: Vacuum chamber leak checking and re-applying heating tape 

[Luke, Luis, Cinthia, Michal, Tyler]

On the 26th Cinthia, Michal, and I took off the insolation on the vacuum chamber and re-routed it to include the new RGA volume. 

The next day Luis and I finished up the last of the flanges to be attached. We attached the Pirani gauge with a conical reducing nipple to the 2.75" port on the vacuum chamber. We then preformed the Helium leak testing, both flanges were quite low the 2.75" flange had a leak of 1.68e-10 torr and the 1.33" flange of 5.5e-12 torr. The leak on the 1.33" flange was so low it was difficult to know how much of it was real and how much was just noise.

ELOG V3.1.3-7933898