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Message ID: 326     Entry time: Thu Mar 2 11:27:47 2017
Author: Gabriele 
Type: General 
Category: Noise hunting 
Subject: Turbo pump of CR0 pollutes CR1 

The turbo pump of the CR0 chamber runs at 833 Hz. It causes vibrations that pollute the measurements in the CR1-4 chamber. In particular CR1 is extremely sensitive and the line is highly up-converted. It's not clean why CR1 is more sensitive than CR2-3-4.

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