 Mon Feb 28 23:54:02 2022, JM, EM, Current Status, Temperature cycle 
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00:51
Temperature setpoint = 116 K
Detector position IN potentionmeter = 34.89mm |
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Fri Feb 25 06:28:12 2022, George, Esther, Current Status
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07:30
Some signals on the beam monitor, seems they are optimising it.
System Check OK |
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Sun Feb 27 22:03:51 2022, JM, OF, Current Status 9x
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23:00
Target Temperature setpoint 95 K
Current in the ring ~ 5e7 pps |
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Wed Feb 16 21:27:31 2022, JM, Cryring signals, Pulser tests, Waveforms 11x
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On 15/2/22 it was noted that the leakage current increases when the motors are moved IN. This is contary to tests conducted on 12/2/22 (elog 192) where
no increase was observed.
16/2/22: Servo motor and pneumatic used to move in by different differences with leakage current observed to increase linearly with distance |
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Mon Feb 28 14:42:48 2022, CB, TD, Cryostat set to 115K
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Cryostat set to 115K |
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Thu Oct 22 22:15:00 2020, CB (remotely), Cooling down after first NEG activation 7x
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Thu 22 October
22:15 Temperatures stables, slowly decreasing.
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Mon Oct 26 10:35:05 2020, JM, CB(remotely), Cooling
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10:10 Pressure on the chamber = 3.1e-8mbar. RE-72 temperatures are ~120-125C with set limits at 80C. D2000 temperatures are ~370C. D2000's reduced
from 60W to 30W and all UHV 1400s reduced to 50W each to cool both the chamber and the D2000s so that ion pumps can be activated.
10:38 Pressure on the chamber = 1.7e-9mbar. Re-72 temperatures begining to fall and are currently ~117-122C. D2000 temperatures are ~290C. |
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Tue Jan 11 12:45:15 2022, TD, JM, OH, Coolant manifold installation + detector pin tests
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2x cooling water manifolds with 2x 8 ports have been installed - see attachments 1 & 2
'drain' ports at top of manifold to permit release of trapped air volumes. Local technicians will install a standard blank in one manifold and a small |
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Fri Nov 19 12:03:51 2021, CB RSS, Conditionings NEGs
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Increased conditioning temperature in D2000 #3 and 4 (behind detectors) to 150C from 130/140C. No appreciable change in temperature. Minor effects in
pressure.
Pressure has completely recovered from yesterday and did not settle on higher/lower plateau value which may suggest conditioning the D2000 NEG |
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Thu Nov 18 12:29:50 2021, CB RSS, Conditioning D2000 NEGs
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D2000 thermocouples report temperatures around 100C (D2000 #1,2) and 120C (3,4). 1,2 are in the intermediate chamber, 3,4 are behind the moving arms.
3 is directly being the detectors.
Wanted to flash ion elements in D2000, but SAES recommend >100C to flash. |
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Mon Jul 17 08:45:11 2023, TD, Closing CARME again
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Grosmantage are scheduled to arrive 10.00 to inspect COF600 seals and their fit to the COF600 flange. They may decide to adjust the seals so that they
fit the flange
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Wed Jun 21 18:47:36 2023, JM, TD, Closing CARME
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Internal CARME installations complete.
New strain reliefs (flange side) installed on each cable harness.
2x sets of SAES UHV1400 NEG pumps installed and connected
to 2x power feed-through flanges -> continuity checked OK -> 3x UHV1400 modules gives a resistance of 7.4 Ohms, 2x UHV1400 modules gives resistance |
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Thu Sep 23 14:19:27 2021, CB (remotely), Checking baking remotely - instructions
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1. Connect to pi on CRYRING local network
ssh pi@192.168.207.127
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Fri Feb 25 01:12:49 2022, Rui-Jiu Chen, Alex , Check 13x
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Still no beam in CRING.
Motor fully out position.
SW3 |
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Fri Feb 25 00:00:40 2022, Rui-Jiu Chen, Alex, Check 14x
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There are some problems with ion source. No beam in CRYING.
Motor fully out position.
SW3 |
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Mon Jun 17 06:26:45 2024, JM, OF, AK, CB, Change to 5+ beam 7x
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07:00
We are changing to 5+ beam so that we can access higher energies and possibly observe a higher lying, wider resonance.
Beam energy change to 1.06 MeV/u. |
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Sun Feb 27 16:30:35 2022, Rui-Jiu Chen, Yuri, Change target temperature again
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1. change T from 95 k to 140 k.
2. keep T at 140k for 15 minutes.
3. change T from 140 k to 95 k. |
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Sun Feb 27 15:02:16 2022, Rui-Jiu Chen, Yuri, Change target temperature 14x
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16:00 change temperature from 95 k to 120k.
16:07 change temperature from 120 k to 95k.
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Sun Feb 27 18:46:42 2022, Rui-Jiu Chen, Yuri, Change target temperature
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time Temperature
E1 current(A) E1 frequency(Hz)
19:06 170 |
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Thu Feb 8 14:59:59 2024, JM, TD, Change p+n FEE64 settings
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ASIC settings for the pn FEEs has been reset to the default aida settings. This was done to combat the observed dropping of several channels in pn only
FEE modules
following motors movement. This effect was also observed in 2022 in several pulser walkthroughs conducted pre and post detector movement. No dropped channels |