Removed thermocouples, heaters, RE72 modules and leftover baking tent. Support octagon removed except topmost part which requires disconnecting pneumatic hoses going to top gate valve. To be done on Monday with ML assistance.

Attempted to move servo motors once more - did not work. The motors appear stuck but it is not clear how or where. Removed screws on flanged ball nut and on motor back. Still stuck. Moving by hand is not possible. Code likely complains about excessive force on motor startup. Will discuss with PB. Some dismounting once back in air may be required.

Attempted first motor test in XHV. Wired and connected limit switches and string potentiometer.

Set up raspberry pi to control motors (.124). Set up pi for remote headless access.

Moved jumper on Teknic hub from 1 to 2 motors configuration.

Linux code only sees one motor and gives issues due to improperly set up limit switches.

Switched to Windows Clear path program. Left servo motor refuses to move and sounds stuck. Unable to move by hand - unclear how braking is still active.

Right servo motor initially moves, but got stuck after one move, on limit switch. Complain about sensorless startup which refers to low bias or excessive torque. The second looks more likely from the display but unclear why. Brake engaged for this motor as well? Unable to move by hand even after disconnecting all cables.

Removed safety pin from bellows (compressed air still missing, to be fixed next week). Motors move in. Pressure from 2E-12 to 3.5E-12 mbar and quickly recovers (seconds). Subsequent move cause smaller pressure fluctuation. All good.

Will contact PB too figure out issue with motors. Problem unclear. Might require some dismounting.

CARME reached 9E-12 this morning

Ion pumps on
No change in pressure.

Gate valve closed. Turbo sectioned off.

Pressure spikes (normal). Waiting for it 
to recover.

Will try to get rga operational later 
today.

Attempted to activate 2xUHV1400 connected to bottom C4, channel #2 using P 200 W, t rise 30 min, t hold 90 min.
Temperature of Kapton bundle increased drastically to 160+ C. Had to stop. Conclusion is that these are likely
the two UHV1400 on the bottom of CARME, immediately in front of the Kapton bundle.

Left the chamber to cool for a while. Baking temperature set to 85 C.
Repeated attempt using above parameters except P 150 W. Too hot. Had to decrease P to 75 W to remain below 150 C
on the Kapton bundle. Temperature on internals increases slowly, even with P 75 W.
Lesson learned: activate the UHV1400 next to the detectors *last*. Once on, temperature increase on the
detectors can be reduced but not stopped.

Attempted to activate 2xUHV1400 on bottom C4, channel #3 using P 200 W, t rise 30 min, t hold 90 min. These
cannot be close to the detectors.
Possibly due to interference with #2 being on hold, temperature of internals starts increasing. Reduced P to 125
W. OK.
Second lesson learned: temperature on internals is very hard to control once the UHV1400 close to them are
activated. Activate other UHV1400 first.

Set #2 to hold 50 W. Set #3 to hold 50 W.

Attempted to activate *3*xUHV1400 on bottom C4, channel #4 using P 120 W, t rise 30 min, t hold 90 min. These
are definitely close to the detectors.
Temperature increase modest but noticeable. Activation completed before temperature increases
too much.

17:30 German time
Activation complete. All NEGs off simultaneously.
Heating power off.

CARME slowly cools down (<10 C/h)
Opened some parts of the jacket to allow better cooling (still <10 C/h)

Pressure reaches E-11 around 19:00
SIP elements in D2000 still at 120 C. Too hot to turn on.

SIP elements will be turned tomorrow morning. That should conclude this baking cycle.

Attempted activating 2xUHV1400 connected to top C4, channel #3 with P 300 W (450 C?), t rise 30 min, t hold 90
min as yesterday

Power reach 300 W, hold. Temperature increased by 5C. OK.

Activated top C4, channel #4 using same set of parameters. Internal temperature increases significantly, up to
140C and still increasing.

Decreased power on channel #2 to 100 W (down from 200 W yesterday). Should correspond to 350 C or so.
Temperature still increasing.
Decreased power on channels #3 and #4 to 250 W (425 C?). Temperature stops increasing. Around 155C on kapton
bundle. OK for kapton, detectors would have broken.
Baking code detected temperature on internals >150 C and stopped baking for safety. Temperatures do not change -
heating provided by NEGs more than enough to maintain current status.

Decreased power on channel #2 to 50W (250 C?). Temperature on internals decreases slightly. No major effect. 
This is likely because the UHV1400 corresponding to #2 are far from the detectors, while #3 and #4 are closer.

Decided to complete activation of #3 and #4 using 250 W. Set both to 50C after completion. Temperature of
internals decreases quickly.

Re-activated baking code when temperature on all internals <150 C. Setpoint 85C on RE72-1 and 95 on -2.

Now waiting for internals to cool down. Will activate remaining 3 sets (2+2+3 UHV1400) later today with P 200 W
(400 C?) t rise 30 min, t hold 90 min.
We know the set of 3 UHV1400 is definitely close to the kapton bundle. P 300 W (100x3) for that set.

PB found pictures of the original dirty assembly, before screws and components were shipped to DL.
See attached.

Found D2000 #1 activated and at 250C (25W) 
to prevent getting dirty when other NEGs 
are activated. See previous entries.

Attempted activation of D2000 #2 using T 
390C , rise time 30 m, hold time 90 m

After 30 m temperature inside chamber 
increased by 5C. 390 C corresponds to 75 
W.

Attempted activation of D2000 #3 while #2 
is holding temperature. Same parameters as 
above except T 400.

After 30 min, temperature in chamber up by 
10 more C to 110.

Attempted activation of #4 as above.

Set #2 then #3 then #4 to 250 C after hold 
time is over to protect them. All D2000 
activated. Max temperature on Kapton 
bundle 110 C.



Attempted activation of 2xUHV1400 linked 
to top C4, channel 2.

No thermocouple available. Used power 200 
W (2x100) rise time 30 m and hold time 90 
min. Upon reaching 200 W no effect on 
chamber interior temperature. Increased to 
300 W. Temperatures increased to 120C max 
roughly. Acceptable.

Had to decrease hold time to 60 m to avoid 
remaining in cave alone for too long. 
Likely okay with 300 W (450 C?). Left on 
150W (400C?) to protect from subsequent 
activations tomorrow.

Because cables are unlabeled it's not 
clear how far the activated UHV1400 are 
from the detectors. If close, this recipe 
works. If far, we may have to use lower 
power for other modules.

NEG power
SIP power
UHV1400 operating instructions

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

9:30

Ion pumps de-gassed by switching on and off multiple times. Large pressure increase the first time pumps were flashed, pressure recovers quickly once pumps off. Subsequent flashing of ion pumps showed a significantly smaller pressure increase, unitl little increase was seen. 

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

Pressure ~3E-8 mbar

10:00

Top NEG controller activated. This controller controls 6 NEG wafers connected in groups of two. NEG wafers connected in two's have the following settings which were utilised in Daresbury

Ramp Time = 45 minutes

Hold Time  = 60 minutes

Vmax =  100 V

Imax =  5A

Pmax = 400W

(See attachment 4)

Settings for the NEG wafers connected in a group of three (white tape on cable) in the moving detector chamber are the same as above but with Pmax = 600W. (See attachment 3)

Settings for the D2000's (kapton tape on cables) are the same used in Daresbury and are;

Ramp Time = 45 minutes

Hold Time  = 60 minutes

Vmax =  65 V

Imax =  3A

Pmax = 254W

Tmax = 500 C

(See attachment 1 and 2)

11:44 

Activation of first set of NEG's completed. The temperature of internal thermocouples went above 150C during activation so power to NEG elements was reduced during activation to 125W per module. NEG's fully OFF to allow internal temperatures to cool. Modules will be activated alone to try and find way of activating NEG's without high temperatures. 

Current bakeout temperature is 95C

Pressure ~ 8E-9 mbar

13:10

All NEG's off. Bakeout Temperature is 95C, internal temperature are ~102C.

Pressure  = 5.8E-10 mbar

Activating a single D2000 NEG pump as they contain in built thermocouples to gauge the effect on internal temperatures. 

14:53

Activation complete for single D2000 up to 500C. Most internal thermocouples remained <110C during activation with one going up to 140C. Temperature of internal thermocouples largely unaffected by the NEG activation untill above 400C NEG temperature. D2000 element will be maintained at 250C for activation of other elements. 

Internal temperatures fallen back to ~102C

Pressure <4E-10 mbar

Would recommend activating elements one at a time with a 20-30 minute ramp and limiting power for NEG modules to ~100W per module. 

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

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

29/9/21

We have opened the cleaned parts for assembley of the moving detector frames. We appear to have everything we require. 

Standoffs - 12 M3x35 bolts, Many M3 washers, Many M3 nuts, 16 standoff tubes. 

Heatshield - 46 M2 nuts, 46 M2x20 bolts, 16 M2 washers

Strain reliefs - 20 M4x35 bolts, Many M4 washers. 

Strain relief supports - 30 M4x10 hex head bolts, Many M4 washers

Clamp - 2 M6x10 bolts 

Upon attempting to assemble standoffs M3 bolts became stuck and could not be removed. A similar issue occurred with the MACOR assembley a few weeks ago. The detector frames have been given to Omer along with a diagram of the correct hole sizes to check and re-drill holes if neccessary. Frames will then be cleaned. We expect to get them back tomorrow to continue assembley. 

30/9/21

Bolt hole sizes were checked and appear to be correct, no re-drilling required. Detector frames cleaned after stuck bolts were removed. Holes were checked again using M3 and M4 bolts, none became stuck. The heatshields, strain supports and clamp were assembled on the frames. Remaining pieces and bolts are accounted for and can be assembled when required.