 Tue Feb 22 14:32:04 2022, David, Yury, Current status 12x
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Merger, Tape server (WS3) checks: DONE, writing ~1 MB/s, refreshing is fine
Leakage current (WS4): 3.48 uA , stable current
DAQ (WS2): temperature checked,
- clock status:
Clock status test result: Passed 5, Failed 0
Understand status as follows
Status bit 3 : firmware PLL that creates clocks from external clock not locked
Status bit 2 : always logic '1'
Status bit 1 : LMK3200(2) PLL and clock distribution chip not locked to external clock
Status bit 0 : LMK3200(1) PLL and clock distribution chip not locked to external clock
If all these bits are not set then the operation of the firmware is unreliable
- adc calibration:
Calibration test result: Passed 5, Failed 0
If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module
- white rabbit check:
Base Current Difference
aida01 fault 0xc228 : 0xc272 : 74
aida02 fault 0x5e98 : 0x5edf : 71
aida03 fault 0x92d3 : 0x931d : 74
aida04 fault 0x7a92 : 0x7adc : 74
aida05 fault 0xedc0 : 0xedcc : 12
White Rabbit error counter test result: Passed 0, Failed 5
Understand the status reports as follows:-
Status bit 3 : White Rabbit decoder detected an error in the received data
Status bit 2 : Firmware registered WR error, no reload of Timestamp
Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR
DAQ (WS2): everything ok
Online monitoring (WS 5): done; first shots with something?
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Tue Feb 22 12:23:23 2022, CB, Slow comparator thresholds lowered - test run
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13:20 Stopped run.
Slow comp thresh 0x64 -> 0x32 on all FEEs
Checkload x2
New run - R55
Restarted Data Spy code
Zerod histograms
Data rate acceptable.
Dead channels seem to come back online
Please check for deadtime/idle time once we collect enough stats. |
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Tue Feb 22 12:01:46 2022, RSS, OF, ML, CB, Beam OFF, Target ON Run 54 9x
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01:00
Beam optimisation since 09:25.
Target ON and open to the ring
YR09xxx ETarget ~1.9e-10 (saturated)
Target E4 inlet pressure ~8.8E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted.
Beam optimization will be done until 3 pm and will be then give for the experiment. |
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Tue Feb 22 10:30:00 2022, RSS, OF, ML, Beam OFF, Target ON Run 54 10x
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11:30
Beam optimisation. No beam since 09:25.
Target ON and open to the ring
YR09xxx ETarget ~1.9e-10 (saturated)
Target E4 inlet pressure ~8.8E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted.
Beam optimization will be done until 3 pm and will be then give for the experiment. |
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Tue Feb 22 10:06:50 2022, RSS, OF, ML, PMT channel
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YR00DA1ZB is the channel for PMT rate. |
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Tue Feb 22 09:10:48 2022, OH, Analysis of R54_14
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Results of the fortran analyser programs for R54_14
No timewarps observed in the data
No dead time observed either.
Lots of idle time but expected with high thresholds and low noise |
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Tue Feb 22 08:31:25 2022, RSS, OF, ML, Beam OFF, Target ON Run 54 10x
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09:30
Beam optimisation. No beam since 09:25.
Target ON and open to the ring
YR09xxx ETarget ~1.9e-10 (saturated)
Target E4 inlet pressure ~8.8E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted.
FH and ML are optimising the beam. |
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Tue Feb 22 07:27:28 2022, RSS, OF, ML, Beam ON, Target ON Run 54 10x
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08:30
Beam ON ~1.0E7 pps
Target ON and open to the ring
YR09xxx ETarget ~1.9e-10 (saturated)
Target E4 inlet pressure ~8.8E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted.
FH and ML are optimising the beam. |
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Tue Feb 22 06:30:09 2022, RSS, OF, Beam ON, Target ON Run 54 10x
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07:30
Beam ON ~8.0E6 pps
Target ON and open to the ring
YR09xxx ETarget ~1.9e-10 (saturated)
Target E4 inlet pressure ~8.8E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted.
08:00 The beam is electron cooled by FH and the orbit of the beam is slighty changed. |
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Tue Feb 22 05:47:18 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 - 2 events at 10MeV! 11x
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06:47
Beam ON ~2.0E6 pps, still fluctates between 1e6 and 6e6 (like a step function)
Target ON and open to the ring
YR09xxx ETarget ~1.8e-10 (saturated)
Target E4 inlet pressure 8.0E-9 mbar
Dump S3 ~ 6.6E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted. |
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Tue Feb 22 05:12:38 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 11x
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06:00
Beam ON ~1.5E6 pps, still fluctates between 1e6 and 6e6 (like a step function)
Target ON and open to the ring
YR09xxx ETarget ~1.8e-10
Target E4 inlet pressure 8.2E-9 mbar
Dump S3 ~ 6.5E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted. |
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Tue Feb 22 04:09:28 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 - first event at 10MeV ! 11x
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05:00
Beam ON ~2E6 pps, still fluctates between 2e6 and 6e6 (like a step function)
Target ON and open to the ring
YR09xxx ETarget ~1.8e-10
Target E4 inlet pressure 8.3E-9 mbar
Dump S3 ~ 6.8E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted. |
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Tue Feb 22 03:05:06 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 9x
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04:00
Beam ON ~5.5E6 pps, but it fluctates between 2e6 and 6e6 (like a step function) in about each 5-10min
Target ON and open to the ring
YR09xxx ETarget ~1.8e-10
Target E4 inlet pressure 8.4E-9 mbar
Dump S3 ~ 7.0E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted. |
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Tue Feb 22 02:02:11 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 10x
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03:00
Beam ON ~7E6 pps
Target ON and open to the ring
Target E4 inlet pressure 8.5E-9 mbar
Dump S3 ~ 7.3E-10 mbar
Nozzle temperature 150 K
Run 54 started, monitoring code restarted. |
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Tue Feb 22 00:32:35 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54
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01:30
Beam ON ~6E6 pps
Target ON and open to the ring
Target E4 inlet pressure 8.12E-9 mbar
Dump S3 ~ 7E-10 mbar
Nozzle temperature 150 K
1:40
Run 54 started, monitoring code restarted. |
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Mon Feb 21 21:04:08 2022, SHB, JM, CB, OH (remotely), Schottky RF view from the beam inside
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Mon Feb 21 20:56:51 2022, SHB, JM, CB, OH (remotely), DAQ connection for ion current
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signals from ICT and CRYRADIO are now connected to AIDA2 and AIDA5 respectively. ICT is set to factor 200 and CRYRADIO to 40 for now.
(AIDA3 --> electron cooler)
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Mon Feb 21 18:03:58 2022, SHB, JM, CB, OH (remotely), Info: signals on ion intensity for experiment
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Currently 4 possibilities to have a look at the beam, all of them are OK to check whether there is beam or not, but some of them are better for checking absolute values.
- Schottky RF signal
- Schottky zero span signal
- CRYRING Radio (signal from BPM) --> YR12DA1R
- ICT (integrated current transformer) --> YR12DT1C
absolute measurements:
- currently the beam is at 5.5 MeV/u calibrated on the flat top. The signal of ICT before is noisy but on the flat top it is well calibrated.
relative measurements:
- The signal from CRYRING radio, has a good amplifier and is frequency independent with a nice log signal. it can be used for relative measurements
- The zero span signal of Schottky can be used, but it is not reliable for measuring the number of ions since change in the control room may change the signal level.
- Schottky RF signal can be viewed by running Launcher-App using the button "VNC Tektronix RSA". The only problem is that only one instance can run, so if in the control room someone needs it, in the container it will disappear.
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Mon Feb 21 17:26:19 2022, JM, CB, SHB, OH (remotely), Beam ON run 53 9x
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21/2/22 16:00
Call from main control room, beam is ON, probably has been for several hours judging by rate on xy total plot.
Changes made to online monitoring code by OH, include setting to only 1 DSSD, correct offsets from the pulser walkthrough, offline analysis capabilities and X/Y position correction.
Monitoring code restarted in CARME_SORT/build_no_output
17:31 Run 50 ended, run 51 started now beam is definitely in the ring. Tried to insert span zero schottky into aida2 correlation scalar, however rate was far too high.
18:03 Removed span zero schottky signal, started new run 52.
With beam ON we noticed some missing channels in the xy total plot. Aida 1 and 2 stat totals on spectrum browser show missing channels. Asic check on both to no effect. Fees power cycled.
19:57 Started run 53. Currently waiting for beam
21:20 Beam ON
1*L plots checked for aida 1, several channels showed no data (noise)
Slow comparator LEC threshold lowered to 0x32 to aida 1, checked 1*L plots and channels are now showing lots of noise. So those channels appear to be quiet using 0x64 threshold. (attachment 3)
Threshold increased back to 0x64
22:33
System checks OK -white rabbit fails on all. ~30 seperation
Temperatures OK
Statistics within range - new scalars added for aida02 and aida05
Data being written ~300 kb/sec
Leakage current ~3.6 uA
00:39
System checks checks OK -white rabbit fails on all. ~42 seperation
Temperatures OK
Statistics within range with new scalars
Data being written 256 kb/sec
Leakage current ~3.615 uA
XY counts dominated by hot channels - most blue pixels are ~10 counts
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Mon Feb 21 12:10:47 2022, RSS, JG, Alpha background run50
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Beam OFF. Run started 20/2/22 18:42
System checck OK, except white rabbit all fail
Temperatures OK
Leakage current 3.59 uA.
potentiometer = 20.28 mm
11:36 OH noticed a channel in aida03 was running hot. Did an asic load check and rate returned to normal.
Online monitor also restarted.
15:06 Investigating the high rate in aida03 ASIC01 channel 11.
Looking at the waveforms it seems channel 11 is consistently different.
Attachment 1 shows a typical waveform for it
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