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Message ID: 21     Entry time: Thu Aug 29 10:02:22 2019
Author: Jan 
Category: Detectors 
Subject: bakeout at ESR setup 
Year:  
The bakeout for our detector setup has started on the evening of 27.08.2019 
We have a temperature sensor in the vacuum next to the detector.
The goal is to maximize bakeout temperature, while not going above 125°C at the detector/sensor.

Here is a daily protocol of temperatures and vacuum pressure
T_12 is the set value of the 1st and 2nd controller device
T_34 is the set value of the 3rd and 4th controller device 
T_56 is the set value of the 5th and 6th controller device
T_sens is the temperature measured by the sensor close to the detector

day   date        P_setup    T_sens  T_12   T_34   T_56   comment
1     tue 28.08.  1e-6 mbar  ~100°   ~120°  ~120°  ~120°  carefull start
2     wed 29.08.  3e-7 mbar  ~121°   ~180°  ~150°  ~150°  T_sens reached ~126° during NEG-pump conditioning
3     thu 30.08.  6e-7 mbar  ~124°   ~185   ~150°  ~175°  readjusted T_56, outgassing a bit increased
7     mon 02.09.  5e-9 mbar   ~80°                        during cooldown
9     wed 04.09.  2e-10mbar   ~30°                        after cooldown, NexTorr Pump active     
Attachment 1: T_set_bakeout.png  844 kB  Uploaded Thu Aug 29 11:17:25 2019  | Hide | Hide all
T_set_bakeout.png
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