Current temperature ~102 C. Was set in the manual mode since last evening 18:54.
See plot and screen attached.

Current pressure 3.62E-7 
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~87C

See plot and screen attached.
Note Baking code restarted yesterday evening.

Current pressure 2.1E-7 increasing

See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Baking automatically stopped due to negative gradient in on thermocouple for 10 minutes straight. 
Not surprising giving we were baking at full power bu making little progress. We should have switched to manual
mode.

Switched to manual mode for now at 60 C to recover temperature without excessive gradients. 
Will restart automatic mode later today. Should be back to full power tomorrow morning.

EDIT
21:42 CET - Temperature stabilised. Restarted automatic mode.

Current temperature ~95 C (on manual mode)
See plot and screen attached.

Current pressure 2.86E-10
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~110 C (on manual mode)
See plot and screen attached.

Current pressure 3.20E-8
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~90 C
However note setpoint is at 102 C. It appears we are baking at full power, but too many heat losses?
Temperature gradient still increasing. May just be a matter of time.

See plots attached


Current pressure ~ 1.9E-6 mbar decreasing

See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug

and
http://web-docs.gsi.de/~lestinsk/vacplot.php

08:36
Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure 1.41E-7

19:42
Temperature is being slowly reduced (<10C/h) to ~100C in order to activate NEG pumps Monday morning. 
Current pressure ~1.2E-7 and will begin to drop. 

23:20
Temperature set point 110C. 
Current pressure ~5E-8

See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure 1.60E-7
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure 1.73E-7
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure 2.03E-7
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure ~2.30E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~132 C (on manual mode RE72-1: 132 C, RE72-2: 130 C)
See plot and screen attached.

Current pressure ~3.30E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~130 C (on manual mode)
See plot and screen attached.

Current pressure ~4.07E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~130 C (on manual mode)
See plot and screen attached.

Current pressure ~4.51E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~130 C (on manual mode)
See plot and screen attached.

Current pressure ~6.08E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~130 C (on manual mode)
See plot and screen attached.

Current pressure ~9.98E-7 mbar
See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug
http://web-docs.gsi.de/~lestinsk/vacplot.php

Current temperature ~64 C

See plots attached

Current pressure ~ 2.5E-6 mbar

See
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EVbsVOubNHRLj0PKiFIvd00BClMJ6WSJ1UDAyLA2F3R4jA?rtime=OK4kVZKB2Ug

and
http://web-docs.gsi.de/~lestinsk/vacplot.php

With the help of OG, the baking tent was built. MG started baking around 11:30 am with a rate of 0.2 K/minute.

Heating update can be found on:  https://web-docs.gsi.de/~lestinsk/baking.php (CARME temperature plot now visible as well - thanks Michael!)

where, device - 192.168.207.192 is for CARME.

Ch1: CARME chamber long tape (2 kW)

Ch2: CF100 flanges exit side

Ch3: CF100 bellows exit side

Ch5:  200 W (x3) CF 100 flanges

Ch6:  40 W CF 100 flange

Ch8: VAT 100 gate valve to ring

example: in 39:50, 39 is the temperature and 50 is the set temperature.

Cooling of baking volume finished over the weekend, attached are some plots of the bakeout test. Bakeout2.png is the thermocouple profile for the entire period over the week. The heating in the first seven hours followed a nice linear rise of ~5C/hour, in the 7-40 hour period the heating rate slowed due to an issue with our octagon average limiting the increase in the temperature. The period from 40-65 hours was due to the picologger heating up to unacceptbly high temperatures which paused the heating. The octagon average and picologger problems were solved after this, with hours 65-75 showing the linear increase seen previously of ~5C/hour until the maximum temperature of the was reached. The maximum of the RE-72 controllers was 135C with the chamber average ~140C. The next 48 hours the bakeout was left to maintain its temperature, with slight day/night variations observed. During this period both heaters were on in order to maintain the temperature as can be seen in RE72_test2.png, where 1 represents the heater on and 0 the heater off (note for RE72 1 I have shifted these values to 1.5 and 0.5 respectively to better show on the same plot). The rest of the bakeout time shows the cooling of the volume in a serious of 10C and 5C steps. 

Graphs for the cooling profiles of each step (5C and 10C) are attached. Keeping the chamber temperature gradient below 10C is most dependent upon the top and bottom temperatures of the chamber. The bottom of the chamber cools much faster than the top of the chamber, down to a minimum value before the heaters kick back in once the RE72 temperatures arrive at the set point. An equillibrium time is then required for the top of the chamber to cool before the next step can be implemented. The 5C steps are recommened for future cooling due to chamber gradients not exceeding the 10C limit and the shorter 'equillibrium time'. Top/Bottom_test2.png shows the difference in chamber and air temperatures between the top and bottom of the baking volume, with a large difference in the air temperature between top and bottom potentially having a significant effect on the cooling of the chamber. I hope improved insulation on the main chamber will result in less heat losses from the bottom of the baking volume and a smaller cooling gradient for the bottom of the chamber during the step down. 

I have deconstructed the baking jacket on the chamber and am ready to begin moving the jacket over to the other chamber. 

Pressure on the leak cart is 7.1e-7 mbar as of 09:44. 

09:09 Arrived at GSI for comissioning beamtime.
      CARME currently in a stopped state, with all FEEs powered off.
      Upper detector is biased with 80V and has a leakage current of 9.92uA.
      This is up on the previous recording by JM of 5.4uA recorded in elog 187.
      It is possible light is reaching the detector via the interaction chamber which shall be checked.

09:19 Cave checked:
      Water is running to the FEEs (OK for power on when required)
      There are 4 uncovered windows on the interaction chamber. Will see if we can get these covered.

14:29 Tested different bias voltages.
      Between 80V and 120V got a normal diode response with small increases in leakage current
      At 120V leakage current was stable at 9.92 for one minute.
      Checked waveforms on DAQ and looked at current again and it was up to 16uA.
      Turned off bias and let ramp down.
      Now when trying to ramp up detector in similar position to last week with a diode response between 0-30V and a rapid increase above that.
      Carlo spoke to Gleb who was beam tuning. Which around the time of our trip he opened the valves and put beam into the ring for a rotation.
      Gleb put in several faraday cups prior to the CARME chamber yet we still see the non-diode bias characteristics.
      He will enter in 30 minutes and we will check if anything looks out of place. Will also remove motor pin to give option of movement.

15:00 Gleb and Carlo enters the cave.
      Dipole and beam off.
      Pin removed.
      Diode response restored 9.4uA at 40V. Which is only slightly above where it was during the morning


      Before they got anywhere with starting again the current has gone up again..

16:49 Since around 15:30 the current has come down to its levels earlier today at 40V. We are preparing a script to monitor the current levels going forward.

17:00 Gleb stopped tuning the beam for the day.
      There is no beam in the ring.
      Magnets and everything else continue as if there was beam in the ring.

19:40 Attempted to raise bias to 50. Immediately started to trip
      Carlo cycled motors multiple times.
      Bias in out position dropped.
      To lower
      Have made it to 60V. Will leave there overnight with leakage current tracking running.

      No beam so no daq running.