0. Give split-funnels to OG or Grossmontage to clean. Mount back foot support for gate valves. Critical when we split.

1. Wait for vacuum division to come to install: IE514 cables to current CM52 module, ion pump cables + controls + turn on, RGA head + program + turn on

2. Vacuum division should also bring N2 gas to vent CARME. Ideally vent by Wed to avoid losing time. Remember to disable ion pumps and remove all cables when venting.

3. While waiting to vent, connect pneumatic hoses to motors box in CARME rack. There is one pneumatic in (central feedthrough) and four pneumatic out. See picture attached. Top two go to left pneumatic motor, bottom two go to right pneumatic motor. Of each set of two, one is for extending the motor and one is for retracting but unclear which is which. Try to connect and operate motor manually by pressing on buttons on top of pressure reducer to ensure everything works. Don't forget to remove the safety pin.

4. Some disassembly of the servo motors may be required to get them operational. Use the Windows ClearView program provided by Teknic to control servos and change the function of the limit switches. Download from https://teknic.com/downloads/ -> ClearPath -> Software -> ClearView Install.zip . There is a Linux version but I have never tested it. The code on the raspberry Pi cannot reproduce some of the functions in the official program due to library limitations (but can do other things the official program cannot do).

5. After venting CARME, split open at the COF600 flange close to the magnet. Open CARME by 1-2 cm, remove spherical washers from top of rail studs, and lift with crane. Make sure knife edges of the two halves do not touch. CARME currently has feet mounted and cannot easily be placed on a standard pallet. Either dismount the feet (not easy to remount), or find a pallet on which CARME can land on its belly only, or place CARME on pallet with feet and screw feet down? Discuss strategy with DR asap.

6. Install split-funnels on flanges/wire harnesses in use (no point installing on other flanges). This may require dismounting top flanges. Probably switch from 3 hole to 4 hole configuration with funnels.

7. Test detector support going to actuator rod without detector. Make sure you have all the parts, including bolt to secure support to rod. You may want to push the rod in via pneumatic motor (or by hand pushing the plate outside) to gain better access.

8. Take detector support on table, install *two* detectors on same support, and mount on actuator rod in XHV. Connect wires and close via jacking plates. Optionally, consider mouting empty support on other rod? May be useful for diagnostic/scraping?

9. Move XHV thermocouple feedthrough to top flange and connect one thermocouple per detector, one to the support, and leave one floating inside

10. If the motors are fully operational, check how far/close they can be actuated from chamber wall. If not, take some dimensions for future reference.

11. Lift CARME back in place. Close using Pfeiffer COF600 seal and ~72 Nm force per bolt. 80 Nm were required in DL. Probably get Grossmontage to do this. Use our long torque-wrench.

12. Connect to interaction chamber via bellows. Beware gaskets on one side are non standard. One appropriate gasket should be on top of bellows box.

13. Reconnect pumps, rebuild octagon, reconnect thermocouples, rebuild baking tent, bake. Make sure to label the NEG cables this time!

14. Activate NEG pumps following this recipe. ALWAYS monitor temperature and be ready to stop if detector temperature reaches 120 C. NEG temperature does not drop immediately, don't wait until it is too late.

If temperature is increasing too quickly (check rates/h), decrease activation power in increments of 25 W. Remember to flash ion pumps.

A. Start from D2000. Activate one at a time with T 400 C, t rise 30 min, t hold 90 min. Activating a second D2000 while the first has reached its hold state seems safe. Leave at 250 C to keep clean.

B. Continue with UVH1400 furthest from the detector (DSSD wall chamber). Activate at P 200 W, t rise 30 min, to hold 90 min. Finish one set of two before moving to the second. Leave at 50 W to keep clean.

C. Continue with UHV1400 in intermediate chamber. Activate at P 150 W, rest as above. Leave at 50 W to keep clean.

D. Continue with 2xUHV1400 closest to detectors. Activate at P 70 W, rest as above. Leave at 50 W to keep clean.

E. Finish with 3xUHV1400 closest to detectors. Activate at P 90 W, rest as above. Turn all NEGs off when activation of 3x is complete.

F. Let chamber cool. Activate ion pumps at room temperature. Section off turbo pump.

10.20 CARME IE514 8.6e-11 mbar

      CARME bakeout monitor and ELOTECH bakeout controller status - see attachments 1 & 2

      The CARME bakeout monitor shows recovery from test yesterday evening. The ELOTECH controller was switched to manual mode for the 3x CARME zones and 5% power selected 
for 45 minutes. CARME TCs increased from mid-20s to high 20s/low 30s over a period of 45 minutes. At the conclusion of the test power was set to 0% for all 3x CARME zones 
and the mode changed from manual to controlled.

03.27 DAQ continues - file APR24/R1_7

      DSSSD bias & leakage current OK - attachment 1
      ambient temperature 16.1 deg C

      FEE64 temperatures OK - attachment 2

      ADC data item stats OK - attachment 3

      per n+n FEE64 1.8.L spectra - attachment 4

      per FEE64 Stat spectra - attachment 5

      Merger, TapeServer etc - attachments 6-8


10.19 DAQ continues - file APR24/R1_8

      DSSSD bias & leakage current OK - attachment 9
      ambient temperature 16.2 deg C

      FEE64 temperatures OK - attachment 10

      ADC data item stats OK - attachment 11

      per FEE64 Stat spectra - attachment 12

      Merger, TapeServer etc - attachments 13-15

      NetVar merge variables - attachment 16


14.44 DAQ continues - file APR24/R1_10

      DSSSD bias & leakage current OK - attachment 17
      ambient temperature 16.5 deg C

      FEE64 temperatures OK - attachment 18

      ADC data item stats OK - attachment 19

      per FEE64 Stat spectra - attachment 20
       some HEC data has appeared

      Merger, TapeServer etc - attachments 21-23

19.12 DAQ continues - file APR24/R1_11

      DSSSD bias & leakage current OK - attachment 24
      ambient temperature 16.5 deg C

      FEE64 temperatures OK - attachment 25

      ADC data item stats OK - attachment 26

      per FEE64 Stat spectra - attachment 27

      per FEE64 1.8.L spectra - attachments 28-29

      Merger, TapeServer etc - attachments 30-32

23.14 DAQ continues - file APR24/R1_12

      DSSSD bias & leakage current OK - attachment 33
      ambient temperature 16.1 deg C

      FEE64 temperatures OK - attachment 34

      ADC data item stats OK - attachment 35

      per FEE64 Stat spectra - attachment 36

      Merger, TapeServer etc - attachments 37-39

Following overnight pumping by Leybold turbo pump

09.12 6.26e-8mbar, 2.8e-6mbar (RGA station), leak rate 5e-12 mbar.l/s

09:52 6.08e-8mbar, 2.8e-6mbar (RGA station), leak rate 8e-12 mbar.l/s

10.10 6.02e-8mbar, 2.8e-6mbar (RGA station), leak rate 8.5e-12mbar.l/s 
KM says leak cart currently isolated CARME chamber + RGA cart - no He
has been used around chamber this week so figure represents noise.

10.36 5.94e-8mbar, 2.8e-6mbar (RGA station), leak rate 4.7e-12 mbar.l/s

10.40 KM isolated RGA station (@RGA station) from CARME chamber to replace current RGA (FC sensor) with a more sensitive RGA (with multiplier + FC sensor) 

CARME vacuum pressure (with no backing) will rise somewhat during this process

11.17 1.35e-7mbar

11.20 New RGA install complete, backing line opened, CARME pressure recovers in < 10s to 5.83e-8mbar

14.08 5.59e-8mbar, 2.7e-6mbar (RGA station), leak cart disconnected (by KM)

Cables for neg and neg ion pumps connected with cables trailed out of the octagon through back and front of the octagon. Neg-ion pump connectors are labelled with Kapton 
tape to prevent confusion with neg connectors. Baking jacket has been partially constructed and will be completed tomorrow. 

10.40

CARME chamber 2.84e-08mbar
Backing 1.2e-7mbar (Edwards vacuum cart w/RGA)

CARME temps - see attachment 1
vessel 146.62 deg C max diff 21.42 deg C
octagon 27.85 deg C max diff 6.35

SAES HV power modules - see attachments 2-12

14.00

CARME chamber 2.78e-08mbar

Start 4x SAES D2000-10 *NEG* pumps (ion pump OFF) - see attachments 13-18

Ramp 45 mins
Hold 60 mins
225W/550deg C

NEG pumps report temps c. 130 deg C

14.15 ramp

CARME chamber 2.0e-07mbar
Backing 3.3e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 230-250 deg C

14.30 ramp

CARME chamber 2.34e-07mbar
Backing 4.1e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 330-350 deg C

14.45 ramp

CARME chamber 4.02e-07mbar
Backing 4.1e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 450-455 deg C

15.00 hold

CARME chamber 4.56e-07mbar
Backing 5.7e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 500-505 deg C
output c. 50V, c. 3A, c. 150W

15.20 hold

CARME chamber 4.40e-07mbar
Backing 5.1e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 530-540 deg C
output c. 160-170W

15.40 hold

CARME chamber 3.46e-07mbar
Backing 4.3e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 540-545 deg C
output c. 160-170W

15.50 cycle complete

Ramp 45 mins
Hold inf mins
set output 60W

re-start CARME bakeout
set point +120 deg C

15.55 ramp

CARME chamber 5.15e-08mbar
Backing 1.4e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 350-360 deg C

16.15 ramp

CARME chamber 4.53e-08mbar
Backing 1.5e-07mbar (Edwards vacuum cart w/RGA)
NEG pump temps c. 260-270 deg C

16.17 CARME chamber temperatures - attachment 20

Network ( dhcpd.conf ) and MIDAS startup.tcl/Options/ASIC settings/rfs filesystems configured


17.20 CARME IE514 4.1e-11mbar, ambient temperature 16.7 deg C
      Pressure appears to be drifting upwards - see attachment 1

14.30 


       per FEE64 1.8.L spectra
        aida11 pulser peak width 52 ch FWHM



14.45 EG&G Ortec 448 Pulser OFF

      all stats & histograms zero'd
 
      alpha background


22.00 DSSSD bias and leakage current OK - attachment 10

      FEE64 temperatures OK - attachment 11

      ADC data item stats - attachment 12

      per FEE64 Stat spectra - attachment 13
       Comparison of attachment 9 (per FEE64 Rate spectra with pulser) indicates significant issues (downstream of adaptor PCB) for DSSSD #1
       Possible issues asics #3 aida01 and possible adaptor PCB misalignment aida05

Attachment 1 - what is function of the 4x c/s holes indicated?


DSSSD install sequence

1 add 136 - 2x78 way cable harnesses to DSSSD mount via strain relief

2 add DSSSD to mount

3 connect 136 D connector

4 install in CARME chamber 

5 connect 2x78 D connectors and strain relief to 2x78 way D connector 
feedthroughs 

Attachment 2- pins of one of the four feedthroughs were damaged. Needs to be replaced.

Attachment 1 - IE414/514 feedthrough wiring diagram

Attachments 2 & 3 - IE514 feedthrough connected (cf https://elog.ph.ed.ac.uk/CARME/19 )

14:00 scroll pump start
14:30 turbo pump start
15:16 1.00e-5mbar
16:01 - attachments 4-8 basic vacuum test setup
        turbo @ 0.74A

              Pirani  IE514
              mbar    mbar

12/8/21 14:02 85
12/8/21 14:04 4.8
12/8/21 14:06 0.95
12/8/21 14:08 0.46
12/8/21 14:10 0.30
12/8/21 14:12 0.22
12/8/21 14:16 0.18
12/8/21 14:18 0.15
12/8/21 14:20 0.12
12/8/21 14:22 0.11
12/8/21 14:24 0.10
12/8/21 14:26 0.090
12/8/21 14:28 0.080
12/8/21 14:30 0.075
12/8/21 14:32 0.27
12/8/21 14:34 0.14
12/8/21 14:36 0.10
12/8/21 14:37:20    7.00e-5 
12/8/21 14:38 0.085 5.80e-5
12/8/21 14:40 0.080 4.61e-5
12/8/21 14:42 0.075 3.73e-5
12/8/21 14:44 0.075 3.14e-5
12/8/21 14:46 0.070 2.70e-5 
12/8/21 14:48 0.065 2.42e-5
12/8/21 14:50 0.065 2.16e-5
12/8/21 14:52 0.065 1.97e-5
12/8/21 14:54 0.060 1.81e-5
12/8/21 14:56 0.060 1.70e-5
12/8/21 14:58 0.060 1.57e-5
12/8/21 15:00 0.060 1.47e-5
12/8/21 15:02 0.055 1.39e-5
12/8/21 15:04 0.055 1.31e-5
12/8/21 15:06 0.050 1.26e-5
12/8/21 15:08 0.050 1.20e-5
12/8/21 15:10 0.050 1.14e-5
12/8/21 15:12 0.048 1.09e-5
12/8/21 15:14 0.046 1.04e-5
12/8/21 15:16 0.046 1.00e-5
12/8/21 15:18 0.044 9.65e-6
12/8/21 15:20 0.044 9.31e-6
12/8/21 16:00 0.032 5.28e-6

--------------------------------

13/8/21 08:00 0.0075 3.53e-7

All neg feed-throughs have now been fully installed, with ground tags 
and power wires crimped and attached to the correct pins. Feed-throughs 
are installed as seen in Image 
1 of zip file, with mark at the top of the feed-through. The pin 
assignment is seen in Image 2. The pins are assigned letters A to F, 
with F the top pin and C the bottom 
pin as installed(refer to images 1+2). The ground is pin c, with the 
two power wires connected to the bottom pins either side of the ground 
(pins b and d). Connections of 
wires from the negs to the feed-through is seen in image 3. Feed-
throughs have been electrically checked. The ground pin is checked 
against the chamber giving 
approx 0.5 ohms and the power pins are checked together giving 5-10 
ohms. Each of the power pins are open circuit with respect to the 
ground. A 
thermocouple has been attached under the bolt of one of the neg pumps 
(image 4).

Pirani gauge and hot cathode gauge have been installed on the chamber 
(images 5,6,7,8) on the section furthest from the turbos. 

Upper valve, turbo and supports have all now been installed (images 
9,10,11). Images 12,13 are of the internal of the turbo and turbo 
ports. The lower valve supports 
produced by the Daresbury group (image 14) are also now attached. These 
supports were required as the lower valve sits higher than anticipated 
due to shorter right-angled 
flanges.

Chamber is now ready to close and leak test!

11.50 DAQ continues
      Data file APR25/R6_13

      DSSSD bias & leakage current - attachment 1
      
      FEE64 temps OK - attachment 2

      ADC data item stats - attachment 3

      Merger & Tape Server - attachment 4-5

      Disk file log - attachment 6
       event rate increased significantly at some point this morning but is currently OK 


19.21 FEE64 power OFF - aida08 high temperature

      DSSSD bias & leakage current - attachment 7

      FEE64 temps - attachment 8
       aida08 high temperature - FEE64 power OFF, detector HV OFF

Photos of noise observed at each of the AIDA PSU outputs by digital oscillscope.

DAQ GOing with waveforms enabled.

Connection from AIDA PSU to scope by DMM test probes, twisted cabling, 3mm jack plug/BNC adaptor.

Attachment 1,2,3 =  +5V

Attatchment 4 = -6V

Attatchment 5 = +7V

Attatchment 6 shows test setup

Repeat above test with *all* cables from AIDA PSU to FEE64s disconnected, i.e. no AIDA PSU load.

Attachment 7,8,9 =  +5V

Attatchment 10 = -6V

Attatchment 11 = +7V

09:00

R4 alpha background continues, currently R4_12

Temps OK, system checks unchanged from previous status (OK, aida16 clock and ADC issue)

10:30

R4 stopped and moved to the next run R5.

Lithium 3+ beam is not feasible at sufficient densities so we are switching to D+ at a beam energy of 0.75 MeV/u. A measurement of d+p at this energy would produce 3He at energies of ~900 keV. 

The current threshold (slow comparator) has been 1 MeV (0x64). We lowered the thresholds in all FEE modules to 200 keV (0x14). ADC rates look fine in all FEEs (~tens of Hz) except in aida 15 and aida 16 which was ~several hundred kHz. Data rate to disk was 1.2 Mb/s

We increased the threshold in aida 15 and 16 only to 500 keV (0x32) and rates in aida 15 and 16 have dropped to <20 kHz. Data rate to disk now 220 kB/s.

11:00

R5 stopped. R6 started - background with reduced thresholds. 

Attachment 1 - ADC data items statistics

Attachment 2 - Histogram browser statistics

Attachment 3 - Tape server

Attachment 4 - New Merger

13:12

R6 continues R6_9

Edits to the CARME sort code have been made. EyEx energy cut for online monitoring reduced to 100 keV. Multiplicity cut applies to lowEnergyEy, lowEnergyEx and lowEnergyXY histograms. Multiplicity cut considers only single strip events.

15:00

D+ beam is now in the ring and is being optimised by the beam operators. The CARME detectors are currently fullt out, but we can see some effects of the beam on the online monitoring code.

10:30  IE514 1.80e-08mbar

Most of the CARME is covered by the baking tent. The tent needs to be closed and a bit covered from the front (upstream), end (downstream), and bottom side. TCs are labeled with a marker in the sequence 1-1 to 2-8.

1-1 Internal TC 1
1-2 Internal TC 2
1-3 Internal TC 3
1-4 CARME front top
1-5 CARME front bottom
1-6 Top hanging middle
1-7 CARME middle middle
1-8 CARME middle bottom

2-1 CARME middle top
2-2 CARME back middle
2-3 Elbow
2-4 Valve
2-5 Magnet pipe
2-6 CARME back top
2-7 CARME back float
2-8 CARME back bottom

Also, TC extensions would be needed to connect to TC-8 modules.

10.20 Pirani 1e-03mbar IE514 3.26e-08mbar


12.53 CARME Leybold IE514 gauge OFF


Top right DSSSD bias -20V leakage current -10.51uA


Three internal ThermoCouples (TCs) -labeled 1, 2, and 3 in attachment 1 - were attached and tested on the TC-08 boards. Only 2 showed the ambient temperature, see attachment 3. 1 and 3 showed some strange numbers, see attachments 2 and 4 respectively.


15.28 CARME Leybold IE514 gauge OFF. Top right DSSSD bias -20V leakage current -10.44A


All the TCs are attached to TC-08 modules. See attachments 5-7. Once all TCs were plugged into TC-08 modules, they were fine.


TC-08 A0067

1. Internal TC 1
2. Internal TC 2
3. Internal TC 3
4. CARME front top
5. CARME front bottom
6. Top hanging middle
7. CARME middle middle
8. CARME middle bottom



TC-08 A0066

1. CARME middle top
2. CARME back middle
3. Elbow
4. Valve
5. Magnet pipe
6. CARME back top
7. CARME back float
8. CARME back bottom

Heating Jackets placed beneath the heaters. See attachments 8-10.

1. Detector

2. Chamber back

3. Strain relief

4. Target

5. Front CARME

6. Top hanging

7. Middle middle CARME

8. Middle bottom

1. Middle top

2. End middle

3. Elbow

4. Valve

5. Magnet pipe

6. End back

7. Float

8. End bottom

NEG pump electrical connections tested - all connections sound. 

Detector carriers have been redrilled and are currently being cleaned. Carriers were checked within the chamber, mounting much easier with new hole. Distances to NEG feedthroughs and thermocouple feedthrough from the carrier also checked. NEG feedthroughs have sufficient separation now moved, thermocouple required moving to top flange position to avoid collision with carrier. 

Longer external thermocouples required for top position to reach TC08's. 3 Longer thermocouples made up using spare wire and connected to feedthrough. All thermocouples checked using baking code - all appear fine. We have 2 long thermocouples for the interaction chamber, 2 for the RE-72's and one for the top of the chamber left. Bellows can be reached by shorter thermocouple. This should be sufficient for baking. 

Standoffs job submitted to workshop for production, may be available end of the week depending on schedules of workshop. Clamp guide and hook tools produced.

Cable connectors have started to be seperated and bound into 16 and 17 cable bunches to enable a good fit in strain reliefs. Upon inspection D-connectors were attached upside down and required flipping to correct position (see image - thumbs up indicates correct position). Cables fit through funnel strain reliefs well, other strain reliefs look more difficult - may require more hands to complete. One long connector has criss crossed wires which may not fit in strain reliefs and may require re-wiring a few cables and one long has broken D-connector. Broken ceramic can be replaced with new D-connector and other long connectors are available

Damaged detector removed from carrier and is in its box - awaiting delivery of other detectors. 

Interaction chamber mounted on its frame in CRYRING as well

Used thermocamera provided by GSI beam diagnostic division to take some pictures of YR09. See attached.

Due to aluminium outer wrapping some reflections are inevitable, but tried to only take pictures of heat spots that did not disapper from different angles.

Temperature calibration may be not perfectly reliable as well.

1. Gap close to CARME outside motors

2. CARME top valve

3. CARME top valve

4. CARME turbo

5. Interaction chamber looking downstream from outside of ring. Note flexible hose pumping Be window.

6. As 5, from inside the ring.

7. Interaction chamber detail (see top left in picture above)

8. IE514 sensor on interaction chamber bottom

9. YR09 from inside the ring. Note electron target

10. As above, looking further upstream

11. YR09 from inside the ring, looking downstream towards CARME

12. Electron target from inside the ring

13. Electron target from outside the ring. Biggest flange.

14. Interaction chamber from inside the ring

Removed tent, octagon, Neg cables.

Disconnected and removed Baking Pi, TC08, thermocouples.

Tested new rails, plates, fees - it fits. Need to check on the flange next.

Will soon turn off CARME IE514 gauge to bias test the DSSDs.

All four detectors were bias tested using the new flexi-rigid adaptor cards. Note the LK-1 jumper was removed from the adaptor cards so that 'open line' was observed between the bias lemo and the ground. Attachment 1 shows VI curves for all detectors. The maximum leakage current for all detectors appears lower than previous bias tests eg elog 400 -> temperature was ~17C today compared to ~20C for elog 400. We also performed a bias test using the old adaptor cards to see if there was any difference between the old and new cards. No significant difference was observed. For the top left detector we initally observed a significantly large leakage current (4.2 uA at 20V, 8.7 uA at 30V) which had ~1 uA fluctuations. We left for 5 minutes to see if it stabilised and the leakage current suddenly dropped to what is shown in the plot. This leakage current then appeared stable for the rest of the test. Perhaps this effect was observed by Tom but for the top right detector in elog 421?

We plan to connect the bias as we did in the 14N+d measurement so that we can monitor and plot the leakage current over the weekend.

Attached.