 Wed Aug 10 10:30:04 2022, TD, JM, Wednesday 10 August 
|
09.45 Found CARME electrical power off
|
|
Wed Feb 21 07:38:32 2024, TD, Wedneday 21 February 24x
|
10.54 23.2.24 Bias OFF |
|
Wed Jan 26 19:16:18 2022, JM, OH, Water cooling, FEE MAC address
|
Water cooling has been connected to the FEE's. Flow meter installed to outlet manifold by way of two right angled pieces. No leaks observed
rom any points in the coolant loop, loop will be bled using taps tomorrow. Water turned OFF overnight.
FEE's powered up with the MAC addresses of each read. 1 is the very bottom FEE and 8 the very top. FEE's have also labelled with the |
|
Fri May 30 07:27:41 2025, CB LB JM NP EM, Waiting for deuterium 8x
|
08:27
No run going.
Temperatures OK - attach |
|
Mon Oct 11 11:24:16 2021, RSS TD ML, Valve support and cable labeling
|
Split funnels were given to Oemer for cleaning. Have received them back after lunch.
Valve support is installed again (see picture 1).
Ion pump was connected but not activated. Michael will help in doing so. No vacuum support to help will RGA. Will proceed without it. |
|
Tue Feb 22 18:23:02 2022, David. Yury, Vacuum problem
|
| At 19:10 the vacuum has increased suddenly everywhere in the ring, roughly a factor 1.5. |
|
Fri Sep 24 09:44:58 2021, JM ML, Vacuum gauge readout
|
The analog readout of the Combivac controller for the IE514 ion gauge has been set up, readings are plotted to http://web-docs.gsi.de/~lestinsk/vacplot.php.
Readings and plot should be updated every minute. |
|
Wed Sep 13 15:00:39 2023, ML, Vacuum and Heater temperature plots from Grafana
|
Attached are the plotted curves from vacuum and heater temperature (actual and set values from ISOHEAT controllers) during the bakeout process. Channel
assignment as per post 433. |
|
Wed May 10 19:06:18 2023, RSS, TD, V-I test
|
To test the detectors, adaptors were installed on the feed through flanges. A negative bias voltage was applied in steps of 10 V from 0 to 150 V. The
V-I plots are attached for the four detectors. Three detectors - top right, top left, and bottom left (in the direction of the beam) - are fine. For the
bottom right detector (in the direction of the beam), the current was fluctuating and was considerably high (1st test). The adaptors connecting to this |
|
Thu May 11 21:22:54 2023, RSS, TD, V-I test 7x
|
Today, the foil was opened, the pins on the bottom right detector were checked and looked fine, the right-hand arm was moved a bit in and then out, and
the foil was tightly closed again. The negative bias voltage was applied from 0 to 50 V in steps of 10 V. During the measurement, the lights in the cave
were switched off to ensure no leakage current from the light*. The results are shown in Attachment 1. To condition the detector, it was left at a negative |
|
Fri May 12 16:24:20 2023, RSS, TD, V-I test 8x
|
Since yesterday evening, the bottom right detector was at -150 V. In the morning, the current was quite stable ~ 6.77 uA. The bias was switched off,
the foils opened, both of the detector arms were moved in and out three times, and the chamber was tightly covered again. A negative bias voltage was applied
from 0 to 150 V in steps of 10 V one by one to all four detectors, and the V-I results can be seen in Attachments 1-4. All detectors seem to be |
|
Sat Aug 12 11:57:51 2023, JM, Updated thermocouple positions and heater channel layouts 6x
|
Heater channel layouts for the interaction chamber and carme in attached documents.
Updated thermocouple positions; (front section is closest to gas-target, rear section is moving detector end)
1-1 Internal TC 1
1-2 Internal TC 2
1-3 Internal TC 3
1-4 CARME - top of the front section
1-5 |
|
Sat Feb 26 23:20:13 2022, David, Pierre-Michell, Update status 7x
|
In this last hour we have been playing with the cryostat temperature as dictated by Nikos, in order to have the target working properly. For this, we
have increased from 80K to 140K the cryostat temperature then we saw again target until we didn't. Then we went down again to 80K. After a few minutes,
with a really nice target again was gone, so we increased the temperature to 120K at 00:19. At 00:27 decrease from 120K to 80K. |
|
Tue Sep 7 11:37:05 2021, CB RSS + OG, Update on strain relief screw issues
|
Tested every strain relief. M3 screws get stuck at different points in each hole. Only one good hole out of 16
(2x8).
They were tested in Edinburgh - unclear if this is a result of baking at high temperatures, or bad screws, or
|
|
Sat Sep 2 10:04:55 2023, CB, Turbo GV closed
|
Found CARME in XHV at 1.1E-11 mbar. Chamber temperature around 30C cooling slowly.
Closed GV to top turbo. Pressure goes up but appears to recover around 2.5E-11 mbar, on line with several previous observations that sectioning
off the turbo results in a higher reading in the IE514. |
|
Tue Aug 9 13:44:16 2022, TD, JM, Tuesday 9 August
|
14.00 CARME vacuum c. 1.8e-10 mbar - see attachment 1
|
|
Tue Apr 8 10:46:13 2025, TD, Tuesday 8 April 27x
|
11.30 CRYRING vacuum and temperature - attachments 1-2
|
|
Tue Jan 30 09:14:50 2024, JM, TD, Tuesday 30 January 32x
|
09.00 CARME IE514 5.1e-11mbar
|
|
Tue Oct 3 08:48:36 2023, TD, Tuesday 3 October
|
09.40 CARME IE514 1.79e-8 mbar, ambient temperature 20.7 deg C
CARME bakeout monitor, ELOTECH R4000 temperature controller front panel and Grafana bakeout dashboard- attachments 1-3
|
|
Tue Nov 29 14:37:56 2022, AR TD, Tuesday 29 November 22x
|
16:20
DSSD bias and leakage current values:
-99.99 V |