Lifted CARME with Al support on the 
CRYRING. No issues during transportation. 

Drilled new holes in the Al feet to fit 
elephant feet. Unclear if the issue is 
with the model, the frame or the feet 
themselves. In any case this issue is 
sorted.

CARME was designed to interface with the 
CRYRING via the cross section with pumps 
and sensors that we decided dismount. To 
replace this section a length of xhv 
tubing and a bellow will be employed. 
Prepared today, to be mounted tomorrow.

Aligned CARME height with beam height. 
This posed issues due to difficulty to 
adjust bolts under the cross members used 
to support the motors. See previous log 
entry.

Bolts under those cross members are now 
only finger tight. Unclear whether the 
CARME section will drop slightly if 
disconnected from main body. It's the 
section housing the moving Dssds. May be 
an issue for tightening it back. Will 
investigate.

Gate valves and supports to be installed 
tomorrow morning.

Mounted additional cross member for motor 
support. See attach 1

Washer required to make it fit on foot on 
one side.

Holes in Al support are not matching elephant feet...! Will have to re-
drill them now.

Yr09 fully dismounted downstream

(ELOG does not allow more pictures to be added to previous entry)

Lifted CARME off the floor and mounted feet on sides. It was found impossible to put four bolts for each foot
due to alignment conflict. Three bolts were mounted per foot instead.

One of the mounting holes in CARME has been damaged and the thread has been ruined. Simple rethreading attempts
failed. Three good holes left - not an issue for now.

One of the shims between the feet and the chamber had to be modified in the workshop. Some feet were rather
difficult to mount, but in the end we succedeed.

CARME was then lifted on the Al frame and gently dropped. The crane remains in place overnight to prevent it
falling over given it is not anchored to the floor.

Front foot and back foot were also mounted. 

Elbows at the back were mounted.

Currently considering whether to mount gate valves before or after lifting in place on YR09. Lift experts will
decide tomorrow what is the easiest procedure given constraints on the ring.

See other attachment and next entry for current status.


YR09 downstream will be cleared tomorrow morning. Lift will proceed tomorrow afternoon.

Found strut bolts in the bag with 
spherical washers. Mounted the struts and 
the washers. See attach 1.

Vented CARME in preparation for lift.

Turbo off
Pressure starts increasing without 
introducing leaks. Up to 10-4 mbar. IE 514 
off.

Removed plastic cap from leak valve. 
Pressure rate increases. Leaky valve?

Turbo motor speed reaches 0 Hz in 1h

Opened leak valve. Scroll off. Pressure to 
10 mbar. Not increasing anymore. Turbo 
leak aperture likely to small to vent 
CARME volume.

Disconnected scroll. Carefully let air in 
by tweaking flexible hose connection. Not 
recommended again, but should be safe 
given turbo fully stop and chamber nearly 
vented.

Reached atmosphere in 10 minutes.

Now waiting for lifting support to mount 
feet.

(30 August 2021)

The current state of YR09 is as per attach 1. CCC has been removed, but additional pumps and gauges remain. Some
will have to be mounted on CARME. Dismounting is scheduled for this Wed.

CB and RSS have been preparing for CARME to be mounted. JM supplied pictures of mounting process in DL. Attach 2-5.

2: Studs on carriages
3: CARME feet
4: Back foot
5: Elbows support

All components required have been located in the boxes except

- Cap hex bolts (M4 x 12?) to mount studs on carriages
- Plastic rails to remove cariages (a solution with bubble-wrap was found. Extra carriages are now in a box. Do
not turn it around.)
- Baking tray does not fit with carriages. Unclear how it did before. Will try to file down edges today.
- Bolts for CARME feet are of rather poor quality, and a host of different sizes. We may have to buy some, but
unclear what length.
- Studs are of different heights. That was not clear from previous pictures (attach 6)
- New and improved valve/elbow support (attach 7) is aligned worse than old one. Will keep using old one. Should
still work somehow.

Pirani  IE514
mbar    mbar


25/8/21 08:00 0.0030 1.86e-8

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

26/8/21   09:00  0.0030   1.77e-8

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

27/8/21   08:00  0.0030   1.76e-8

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

28/8/21   17:30  0.0029   1.63e-8

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

30/8/21   08:00  0.0028   1.43e-8

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

31/8/21   08:30  0.0027  1.40e-8

Attachments 1-3 fasteners, fittings found amongst earlier shipments. I assume that the STFC DL cleaned items are for the internal detector mount assembly.


Inventory of silver-plated copper gaskets

             ID (cm)

7x DN250CF   25.4
5x DN200CF   20.0
5x DN160CF   15.3
100x DN100CF 10.0
4x DN63CF    6.3
16x DN35CF   3.5
23x DN16CF   1.6

N.B. ID is measured +/- 0.1cm and DNxxCF designation is what the Lesker catalogue says it means.

Attachments 4 & 9 2x motor rods and MACOR heat shields for cleaning

Attachment 5 - cable assemblies

Attachment 7 - what are these screws for?

 

Pirani  IE514
mbar    mbar


18/8/21 08:00 0.0034 3.90e-8
18/8/21 17:00 0.0032 3.72e-8

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

19/8/21  08:00  0.0032  3.38e-8

19/8/21  17:00  0.0032  3.31e-8

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

20/8/21  08:00  0.0032  3.02e-8

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

21/8/21  16:00  0.0032  2.59e-8

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

22/8/21  12:00  0.0034  2.44e-8

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

23/8/21  08:00  0.0030  2.23e-8

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

24/8/21  08:00  0.0030  2.15e-8

Pirani  IE514
mbar    mbar



13/8/21 08:00 0.0075 3.53e-7
13/8/21 12:00 0.0065 2.80e-7
13/8/21 15:20 0.0065 2.40e-7
13/8/21 16:30 0.0060 2.29e-7


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


14/8/21 12:00 0.0046 1.25e-7
14/8/21 12:00 0.0044 1.14e-7


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


15/8/21 09:00 0.0040 8.47e-8
15/8/21 12:30 0.0040 8.00e-8
15/8/21 15:30 0.0040 7.69e-8


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


16/8/21 08:00 0.0038 6.36e-8
16/8/21 11:30 0.0036 6.14e-8
16/8/21 17:00 0.0036 5.82e-8


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


17/8/21 08:00 0.0034 4.82e-8
17/8/21 17:00 0.0034 4.47e-8

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

Attachments 1 & 2 - 2x SAES D-2000 re-fitted to side ports
                    all 4x SAES D-2000 now re-fitted to chamber

Will now fit 1x turbo and blank (currently) unused turbo port.

Attachments 3 & 4 - centre 2x78 pin micro-D feedthrough has some pins slightly bent - can probably be safely bent back into position 

ALWAYS check 78-pin feedthroughs for bent/broken pins before fitting connectors/cabling

Attachment 5 - currently unused turbo port

Attachments 6 & 7 - turbo port from above and side

Attachment 8 - turbo + NW16/NW25 adaptor + NW25 s/s hose + scroll pump + turbo controller + CMS52 gauge controller

Note we currently do not have a vent valve or backing line vacuum gauge (both functions provided by leak detector at STFC DL).

Attachments 1-3 - 2 of 4 SAES D2000 installed at same ports used for STFC DL XHV tests

Attachments 1-5 - CARME shipment in CRYRING hall
                  XHV chambers nearest to YR09

Will remove top and sides of XHV chamber crate and install 4x SAES D-2000, 1x Leybold Mag Lev 400 turbo and 1x Leybold Ionvac IE514 gauge for basic vacuum test.

Attachments 6-7 - spare wire seals shipped from Edinburgh to GSI
                  poor packing and/or re-packing has resulted in bending of wire seals
                  wire seals shipped from STFC DL to GSI appear to be OK - see attachment 1
                  

10.39

CARME XHV chamber pressure 6.0e-12mbar
Backing 2.1e-08mbar (Edwards vacuum cart w/RGA)

CARME temps - heaters OFF - chamber at ambient 
temperature

All SAES D2000-10 & UHV1400 NEG power OFF
All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

Gate valve open

attachment 1 - analog RGA scan (as found this am)

attachment 2 - scan mode 

c. 11.15

AH partially closes gate valve using c. 2 bar air pressure

VCARME XHV chamber pressure increases c. 7e-9mbar immediately

attachment 3 - RGA scan - no obvious change in RGA trends!

attachments 4 & 5 - VAT valve indicators - upper (partially open/closed) and lower (closed)

11.33 CARME XHV chamber pressure 6.6e-9mbar
Backing 2.2e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

All SAES D2000-10 ion pump OFF

11.40 CARME XHV chamber pressure 5.64e-9mbar

11.46 CARME XHV chamber pressure 5.01e-9mbar
No change in RGA trends!

12.01 CARME XHV chamber pressure 3.78e-9mbar
No change in RGA trends!

12.11 CARME XHV chamber pressure 3.10e-9mbar

12.42 CARME XHV chamber pressure 1.81e-9mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.20 CARME XHV chamber pressure 1.06e-9mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.36 CARME XHV chamber pressure 8.93e-10mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.59 CARME XHV chamber pressure 7.07e-10mbar
Backing 2.5e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

14.00 Leybold turbo OFF - decelerating

14.30 Leybold turbo OFF - decelerating - 466Hz
CARME XHV chamber pressure 5.62e-10mbar
Backing 2.1e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

14.40 1x SAES D2000-10 ion pump switched on briefly - settles in c. 10s - pressure < 8.9e-
12mbar
All 4x D2000-10 ion pumps OFF

15.01 Leybold turbo OFF - decelerating - 125Hz
CARME XHV chamber pressure 4.78e-10mbar
Backing 1.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

15.10 Abrupt increase in RGA trends - see attachment 6
Leybold turbo OFF - decelerating - 60Hz
CARME XHV chamber pressure 4.53e-10mbar
Backing 2.6e-08mbar (Edwards vacuum cart w/RGA)

15.19 4x SAES D2000-10 ion pumps ON
RGA record 04.24.00 

15.24 see attachment 7 - RGA transient recovering - turbo stopped?

15.10 Leybold turbo OFF - stopped - 0Hz
CARME XHV chamber pressure 4.40e-10mbar
Backing 1.1e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

16.10 VAT gate valve partially closed
Leybold turbo OFF - stopped - 0Hz
CARME XHV chamber pressure 3.88e-10mbar
Backing 9.8e-09mbar (Edwards vacuum cart w/RGA)
RGA traces recovered to pre-transient levels and stable

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

RGA laptop passcode: tw%11&STA-   

RGA scans set up and plotting data as of 11:44

RGA is set to the multiplier mode (4.44e-8mbar) with an accuracy setting of 8, these are for the most sensitive scans. RGA is set to scan masses 2, 12, 16, 18, 28, 32, 40 and 44 in the range 1e-9 to 1e-14mbar. Mass2=7.85e-11mbar,  Mass12=1.45e-12mbar,  Mass16=1.41e-11mbar,  Mass18=4.78e-10mbar,  Mass28=1.53e-11mbar,  Mass32=3.46e-12mbar,  Mass40 = 1e-14mbar,  Mass44= 3e-13mbar. Slight variability in each measurement is ver small for higher pressures and larger for lower pressures (see image attached). 

Plan is to switch each ion pump off individually and observe the effect on the RGA scans. Once off I will leave for 30 mins to see if any difference can be seen. Afterwards I will switch of 2 pumps then 4 pumps at a time. 

12:06 Ion pump 1 (furthest left pump=1, furthest right=4) turned off, no immediate change in RGA.

12:38 No change in RGA, turning pump 1 on again and switching off pump 2. Pump 1 took ~15s to stabilise back to a pressure of <8.9e-12mbar once turned on again. 

13:08 No change in RGA, turning pump 2 on again and switching off pump 3. Pump 2 took ~15s to stabilise back to a pressure of <8.9e-12mbar.  

13:38 No change  in RGA, turning pump 3 on again and switching off pump 4. Pump 2 took ~15s to stabilise back to a pressure of <8.9e-12mbar.  

14:08 No change in RGA, all pumps back ON. RGA has not changed since pumps wer switched off and on, pressure on the hot cathode gauge has risen slightly however I think this is due to the day/night cycle of the pressure. 

14:12 All 4 ion pumps turned off

15:12 No observable change in the RGA

15:33 Ion pumps all back ON. No change in RGA

The length of the wire needed was estimated with the aid of a scale image of the detectors in the CARME chamber and foam model pieces. Wire length estimated by simply cutting wire so that it 'fits' the scale model and by taking coordinates of the end points of the longest sections of wire needed on the model and calculating a bezier curve to estimate wire length. Bezier curve calculated by inputting the endpoints of the wire and control points such that the wire comes out of the connector at the specified angle in the scale diagram. Figure 1 shows the bezier curve (orange), distance between the endpoints (green) and the control point plot. The length of wire required by the bezier curve is approximately that of cutting wire to fit the scale model. 

Two groups of harnesses are needed to be built, a short section which correspond to the top and bottom of the detectors, and longer sections needed for the sides of the detectors. Lengths of these wires is;

Short: 225 mm

Long: 285 mm

Wire is cut to length using a circular object with the required circumference. Wire is wrapped round the object and cut to give required length. Wire is then stripped, crimped and inserted into the connectors with the correct pin assignment. Inserting wire into connectors acts as a good quality check, as incorrectly crimped wires will not fit into connectors. Crimp is set to setting 12 for the male crimps and 10 for the female crimps. Wire stripper has to be cleaned of stripped ends often as it is liable to jam and wire must be inserted into stripper straight, else strip will clip some of the conductors in the wire. 

As of 9/11/20 two harnesses (1 long, 1 short) have been constructed. 

8 harnesses constructed and sent to DAresbury for cleaning 20/11/20

Attached is the temperature plot for bakeout period including tags for NEG activation etc.

28 October -> 27 November
--->See shared Excel document for CARME pressure values<---
https://uoe-my.sharepoint.com/:x:/g/personal/cbruno2_ed_ac_uk/EbaoBvhq8zFFtmuakXKjQWQBTqjjzilT6lk9BmchoxlMNQ?e=XU8DzE

 
30 October
07:30 Baking code has been shut down, we have no log of the temperatures. Restarted (T=0)
19:40 Pressure back in the E-12 mbar range.

31 October
08:47 Back in the low E-11 mbar range. See temperature plot attached.
15:57 Back in the E-12 mbar range.

1 November
12:30 Pressures updated. Temperature plot updated.

2 November
08:52 Pressure reached E-10 mbar overnight, now back in the E-12 range.
Temperature increasing. See attached.

3 November
08:37 Pressure stable in the E-12 mbar range.
15:36 Pressure mostly stable in the E-12 mbar range
17:30 KM reports re-arranging the mains power connection to borrow an extension reel. No obvious effects on pressure.
18:24 Pressure stable in the E-12 mbar range. Updated temperature plot.

4 November
08:39 Pressure stable in the E-12 mbar range.
Temperature plot updated.
19:31 Pressure mostly stable around 5E-12 mbar

5 November
10:26 Pressure stable in the E-12 mbar range.

6 November
12:26 Pressure stable in the E-12 mbar range. 

7 November
11:50 Pressure stable in the E-12 mbar range.
Temperature plot updated.

8 November
20:39 Pressure increasing again. Now in 1E-11 mbar range

9 November
08:50 Pressure returned to E-12 mbar range.
Temperature plot updated
16:51 Pressure fluctuating around 7E-12 mbar range.

10 November
09:04 Pressure oscillating in the 7E-12 mbar range

11 November
08:27 Pressure mostly stable in the 5E-12 mbar range

12 November
08:21 Pressure mostly stable in the 5E-12 mbar range

13 November
08:29 Pressure increased suddenly to 7E-9 mbar yesterday at 14:00, from 6.5E-12 mbar. Was the valve closed? (Confirmed
by KM)
Pressure appears to be slowly recovering. Currently in the low E-10 mbar range.
Temperature plot updated.

15:40 Pressure does not appear to drop. Currently stable around 2E-10 mbar

18:10 KM reports Ion pumps have gone off (tripped by high pressure?)
IE514 gauge still reading 1E-10, but SAES D2000-10 ion pressure gauge reading 1E-12.
Someone will check tomorrow in person.

14 November
08:13 Pressure stable in the 2E-10 mbar range. Does not appear to decrease.

15 November
08:24 Pressure stable in the 2E-10 mbar range

16 November
08:23 Pressure increased to 1E-9 mbar (potentially due to heating being turned on at week start).

17 November
08:18 Pressure back in the E-12 mbar range since yesterday afternoon.
Change was sudden and CM52 control module appears to have been moved in-between. 
Unclear what was done locally.

18 November
08:40 Pressure mostly stable in the 5E-12 mbar range.

19 November
07:55 Pressure remains stable in the E-12 mbar range.
Temperature plot updated

20 November
08:00 Pressure remains stable in the E-12 mbar range.

21 November
14:16 Pressure remains stable in the 5E-12 mbar range.

22 November
08:08 Pressure remains stable

23 November
08:24 Pressure remains stable

24 November
08:05 Pressure remains stable
See ELOG entry by JM

25 November
See ELOG entry by TD.
Valve partly closed.

26 November
08:58 Pressure in the E-10 mbar range, very slowly decreasing

27 November
21:07 Pressure stable in the 2E-10 mbar range. Does not appear to be decreasing

28 November
17:49 Pressure stable in the 2E-10 mbar range.