10.54 23.2.24 Bias OFF

CARME DAQ shutdown. FEEs turned OFF and all MIDAS server windows closed.

Detector bias turned OFF.

Final leakage current plot - attachment 1

Doing afternoon check. Checked the leakage currents, all ok. Attachment 1

Temperatures ok, attchment 2

System wide check, all correct.

Statistics ok (as far as we can tell) attachment 3

Spectrum browser ok, attachment 4

Checked merger, spinner spinning...

Beam current is around 2.2 E7 and the target dencity is 6.3E11 cm2.

Doing morning check. Checked the leakage currents, all ok. Attachment 1

Temperatures ok, attchment 2

System wide check, all correct.

Statistics ok (as far as we can tell) attachment 3

Spectrum browser ok, attachment 4

Checked merger, spinner spinning...

Attachment 5 shows the BPM scope (i.e. induced signals from the ion buchnes) for the duration of injection, bunching, acceleration, debunching.

Beam current is around 2.5E7 and the target dencity is 6.3E11 cm2.

Run 48 started

We have mosty empty injections into CRYRING. Only sporadically the beam with good intensity is injected.

Michael Lestinsky is currently working on the problem.

DAQ restarted. Run46. All appears OK, aida01 shows high rates across ASIC 4 even with no beam which could not be resolved via ASIC control. May suggest some damge.

Merger is running and tape server is writing data to disk. Data rate is about 1300 kB/sec from 800 kb/sec due to increase in aida01 rate.

FEE temps OK

All system checks OK

Detectors moved to IN position (left arm pot = 36.5 mm, right arm =70.49 mm). Target ON.

Lost beam again.

Run 47 started.

09:43

Run 44 started cooled beam on target

Detectors IN (left arm pot =36.5 mm, right arm pot = 70.49 mm). Stationary. Same as previous runs

Electron cooler voltage 751.4 V this corresponds to 1.3436 MeV/u. This should be back on the peak of the resonance.

Target density is 5.2e11 at/cm2, ring pressure looks OK YR09 1.72e-10 mbar. Target density is not very stable and requires small corrections in the x position to maintain a target

Horizontal beam position is -7.5 mm, vertical beam position is 0.0 mm. Same as previous run

Beam is in the ring for 6 seconds and total cycle time between injections is 10 seconds. Notice this is different than previous runs. Aim is to have a few different cycle time configurations to see effect on halo

Statistics, merger statistics, histograms all zero'd

10:05

FEE temps OK

System checks OK

Merger OK, tape server OK

Leakage current plot attachment 1

ADC data items stats attachment 2

Monitoring code rates attachment 3

11:08

FEE temps OK

System checks OK

Merger OK, tape server OK

Leakage current OK

ADC data items stats OK

Online spectra OK

12:30

FEE temps OK

System checks OK

Merger OK, tape server OK

Leakage current OK

ADC data items stats OK

Online spectra OK

14:03

FEE temps OK

System checks OK

Merger OK, tape server OK

Leakage current OK

ADC data items stats OK

Online spectra OK

15:36

FEE temps OK, system checks OK, merger OK,

Screenshot 4: temperatures

Screenshot 5: statistics

Screenhot 6 - 9: spectra (there is a persistent peak in aida13 in Layout8)

Screenshot 10: leakage current (current 1 seems to be going up slowly but steadily)

Screenshot 11: spectrum

17:18

FEE temps OK, system checks OK, merger OK,

Screenshot 12: temperatures

Screenshot 13: statistics

Screenhot 14 - 17: spectra (we still see a peak in aida13 in Layout8, but not always)

Screenshot 18: leakage current (current 1 seems to be going up slowly but steadily)

Screenshot 19: spectrum

19:27

FEE temps OK, system checks OK, merger OK,

Screenshot 20: temperatures

Screenshot 21: statistics

Screenhot 22 - 25: spectra (we still see a peak in aida13 in Layout8, but not always)

Screenshot 26: leakage current (current 1 seems to be going up slowly but steadily)

Screenshot 27: spectrum

21:57

FEE temps OK, system checks OK, merger OK,

Screenshot 28: temperatures

Screenshot 29: statistics

Screenhot 30 - 33: spectra (we still see a peak in aida13 in Layout8, but not always)

Screenshot 34: leakage current

Screenshot 35: spectrum

07:00

Observed reduction in YR09 presure over last few hours in ML online plot. Beam intensity looks OK but target density was fluctuating quite a lot. Current value was 1.5e11.

Changed the nozzle position slightly which increased target density to 5.5e11. Pressure in YR09 looks OK.

I accidently scrolled slightly with the target code (only by 100 but am not sure). Target looks stable but I will not touch remotely again for fear of losing total target position.

Rates in ADC data items statistics and in the monitoring code look consistent with beam on target. 

08:56

Target density reduced again to 1.5e11. Changed the nozzle position slightly in X and recovered 5.5e11 at/cm2

Beam intensity looks OK

FEE temps OK

System checks OK

Merger and tape server OK

Statistics ADC data items and spectrum browser rates OK

Merger stats attachement 5

leakage current plot attachment 6

Online monitoring code rates OK

09:33

Run stopped to change beam energy

06.03 DAQ continues file G22-86/R42_32

      DSSSD bias & leakage current - attachments 1-2
       DSSSD #0 trending upwards , DSSSD #1-3 trending downwards with decreasing ambient temperature

      FEE64 temperatures OK - attachments 3-4

      ADC data item stats - attachment 5

      per FEE64 Rate spectra - attachments 6

      target density 5.27e+11/cm2
      beam stable for last 3 hours ( cannot read scale with X2Go )

23.03 DAQ continues file G22-86/R42_21

      ML CRYRING ambient temperature and vacuum - attachments 1 & 2

      DSSSD bias & leakage current - attachments 3 & 24
       DSSSD #0 trending upwards , DSSSD #1-3 trending downwards with decreasing ambient temperature

      FEE64 temperatures OK - attachments 4-5

23.07 All system wide checks OK

      WR timestamps OK - attachment 6

      ADC, DISC, PAUSE and correlation stats OK - attachments 7-10

      per FEE64 Rate spectra - attachments 11-12
      per FEE64 Stat spectra - attachments 13-14

      per FEE64 1.8.L, 1.8.H and 1.8.W 20us FSR spectra - attachments 15-20

      Merger, Merger stats and TapeServer OK - attachments 21-23

      online analysis spectra - attachments 25-30

23.28 all histograms, stats, Merger stats zero'd
      online analysis restarted

23.35 target density 5.83e+11/cm2
      beam no change in last 3 hours ( cannot read scale with X2Go )
      see attachments 31-33


00.58 DAQ continues file G22-86/R42_24

      DSSSD bias & leakage current - attachments 34-35
       DSSSD #0 trending upwards , DSSSD #1-3 trending downwards with decreasing ambient temperature

      FEE64 temperatures OK - attachments 36-37

      ADC data item stats - attachment 38

      per FEE64 Rate spectra - attachments 39

      target density 5.75e+11/cm2
      beam no change in last 3 hours ( cannot read scale with X2Go )


03.14 DAQ continues file G22-86/R42_28

      DSSSD bias & leakage current - attachments 40-41
       DSSSD #0 trending upwards , DSSSD #1-3 trending downwards with decreasing ambient temperature

      FEE64 temperatures OK - attachments 42-43

      ADC data item stats - attachment 44

      per FEE64 Rate spectra - attachments 45

      target density 5.91e+11/cm2
      beam decreased in last 3 hours ( cannot read scale with X2Go )
      see attachments 46-47

03:30 beam recovered
      online analysis rates DSSSD#0 recovered to values observed at start of shift

Run 42 - 15:00

Detectors IN (left arm pot =36.54 mm, right arm pot = 70.49 mm). Stationary. Same as run 40

Electron cooler voltage 751.89 V this corresponds to 1.3444 MeV/u. This should be on the right of the peak of the resonance.

Target density is 5.03e11 at/cm2, ring pressure looks OK YR09 2.36e-10 mbar.

Horizontal beam position is -7.5 mm, vertical beam position is 0.0 mm. Same as run 40.

Beam is in the ring for 4 seconds and total cycle time between injections is 8 seconds. Notice this is the samet as run 40, different to run 35.

Statistics, merger statistics, histograms all zero'd

System wide checks ok. Temperatures ok. Leakage current ok. Merger ok.

Attatchment 1: Stats

Attatchment 2: Temperatures

Attatchments 3-6: Waveforms

Attatchment 7:Leakage current

Attatchment 8: Monitoring code rates

15.35 DSSSD #0 leakage current trending somewhat upwards cf. somewhat downwards for DSSSD #1-3

          ML CRYRING hall ambient temprature c. 17.7. deg C and on downward trend.

         Probably indicates radiation damage/surface charging of DSSSD #0 - leave DSSSD #0 biased for 24-48h following run and monitor leakage current

15:46

Seeing some beam intensity drops occasionally. Small drop that instantamnously went back up around 15:20 and then stbale beam unitl around 15:44 and then two small-time beam drops within 2 minutes. See attatchment 9. Continuing to monitor. Target density remains stable at 5e11.

16:45

Beam dropping again and continuing to drop  (began at 16:35). Target density 4.7e11. Called HKR and they will try to increase the intensity. See attatchment 10.

17:00

System checks ok. Temperatures ok. Leakage current plot okay. Merger ok. Beam intensity still reduced to same amount as in attatchment 10). Target density approx 5e11.

Attatchment 1:1 Stats

Attatchment 12: Temperatures

Attatchments 13-16: Waveforms

Attatchment 17:Leakage current

Attatchment 18: Monitoring code rates

17:10

HKR cryring asked for target to be removed to check intensity. Target was removed.

17:17

Target back in, intensity back to around 2.5e7. Stable. Target desity 5e11.

18:42

All system checks and tempeatures ok. Beam stable. Target 2.3e11.

Leakage current: red line still trending upwards but slowly. See image 24.

10:30

Beam went down about 21:45. Called HKR and they were able to almost immediately restore the beam. Beam intensity ~2.5e7.

Target density 5.6e11 at/cm2, pressure in YR09 ~2.5e-10 mbar.

FEE temps and system check OK

Merger and tape server OK

Merger stats (attachment 25)

All rates in spectrum browser look OK

Monitoring code rates indicate beam on target.

DSSSD 0 aida01 1*L spectra, aida04 **L spectra

Double peak structure feature of aida04 ( n+n Ohmic side ) strips. Single ( albeit sometimes broad peak ) observed in aida01 ( p+n junction side ) strips.
Not currently observed by DSSSD 1-3. DSSSD 0 high energy peak rate far higher than DSSSD 1-3.

Data from last week did not display this double peak but DSSSDs and beam have been moved since.

Unclear whether this reflects radiation damage and/or wafer/active area edge effects on the n+n side.
Might also reflect beam characteristics throughout cycle.

Requires calibration and dE cut to investigate.

JM comment -> early time cut analysis indicates this is a beam effect. DSSD#0 has majority of halo on it so double peak is very pronounced. 
We observe double peak all DSSDs just to a much lower level. 

08:57 Doing morning check. Checked the leakage currents, all ok. Attachment 1

Tempritures of, attchment 2

System wide check, all correct.

Statistics ok, aida 4 was a little high, carlo oked it attachment 3 and 4 (hist)

Spectrum brozer, ok, attachment 5 and 6

Waveforem atachment 7 and 8

Checked merger, spinner spinning...

Attached screenshot of merger  9

11:15 Beam current is around 2.5E7 and the target dencity is 5.3E11 cm2, there was small isntability (dips) from the beam, reason unknown, all detectors stable.

Check leakage current, is stable,  attachment 1

Tempreture ok, attachment 2

System wide check, all pass

Statistics checked, attachment 3, aida 4 is still high, histograms attachment 4

Spectrum browser ok, attachment 5 and 6

Waveforms attachment 7 and 8

Checked merger, ok, spinner is spinning,

Attachment 9 is the merger info

12:21 Targer intencity started dropping quite dramatically. The beam position X value was adjusted to -11000, we got back above 4E11 /cm2

13:08 Beam current is around 2.5E7 pretty stable, target is working, 61E11 /cm2, stable

Checked leakage current, stable, attachment 1

Temp. stable, atatchment 2

System wide chack, all pass

Statistics checked, attachemnt 3, aida 4 should be checked, histogram of rates 4 attached

Spectrum browser, attached 5 and 6

Waveform attached 7 and 8

Merger ok, spinner is pinning,

Attached 9 merger info

01:17

Run 40 continues.

Beam intensity looks OK. Oscillates between just below 2.5e7 and just below 3e7. (attachment 1)

Target density 4.3e11, YR09 pressure 1.54e-10 mbar.

Rates in monitoring code show beam on target.

FEE temperatures all OK - plot over time (attachment 2)

System check OK

Leakage current OK -trending down (attachment 3)

Tape server and merger OK. Merger stats (attachment 4)

ADC data items looks OK, spectrum browser rates OK

Spectrum browser stat (attachment 7 LOG scale) - looks like some HEC were firing previously. Spec browser histograms zero'd to monitor

pn + nn waveforms (attachments 5+6)

Monitoring code energy histograms (attachment 8)

02:40

X2go screen size has decreased further -> cannot see target density but can view beam intensity. Will use ML vac plot to help gauge beam on target

Beam intensity has decreased over the last hour but has now stabilised and is now ~2e7 at injection. Pressure in YR09 has decreased slightly accordingly from ML online but not significantly (still >1e-10 mbar)

Monitoring code rate plots indicate beam on target

All daq checks OK

Will continue to monitor beam intensity

04:14

Ring intensity has increased and appears stable back at 2.5e7.

Target density has slightly decreased to 3e11, ring pressure YR09 stable at 1.5e-10 mbar. I am reluctant to try and move the nozzle while my x2go screen is not 100%.

FEE temps OK

System checks OK

Merger and tape server OK

Rates in all FEEs look OK

Spectrum browser stats (attchment 9) no HEC firing

Monitoring code rates look OK -> beam on target (attachment 10)

05:14

Beam intensity looks OK, Target density 3.11e11. Ring pressure YR09 2e-10 mbar.

All checks OK

Monitoring code rate looks OK -> beam on target

06:20

Beam intensity OK, Target density 3.1e11. Pressure YR09 1.9e-10 mbar.

FEE temps OK

System checks OK

Statistics and rates of all FEEs OK

Merger and Tape server OK

Monitoring code rates look OK -> beam on target

Merger statistics (attachment 11)

7:15

Beam intensity 2E7, target density getting bad 2eE11. WIll fix it from the lab.

FEE temps OK

System checks OK

Merger OK

Stats OK

15:27

Run 40 started cooled beam on target

Detectors IN (left arm pot =36.5 mm, right arm pot = 70.49 mm). Stationary. Same as run 35

Electron cooler voltage 751.095 this corresponds to 1.338 MeV/u. This should be on the left of the peak of the resonance.

Target density is 4e11 at/cm2, ring pressure looks OK YR09 1.43e-10 mbar.

Horizontal beam position is -7.5 mm, vertical beam position is 0.0 mm. Same as run 35.

Beam is in the ring for 4 seconds and total cycle time between injections is 8 seconds. Notice this is different than run 35.

Statistics, merger statistics, histograms all zero'd

15:39

System wide checks ok. Merger ok. Temperatures ok.

Attatchment 1: statistics

Attatchment 2: Temperatures

Attatchment 3-6: Waveforms. Layout 2 - (attach 4) had a strnageish waveform for aida11, stays after reload.It was the HEC firing so did an ASIC control and Zero'd histograms and all is okay.

Attatchment 7: Leakage current

17:04

System wide checks ok. Merger ok. Temperatures ok. The beam is on target and everything runs smoothly.

Attatchment 8: statistics

Attatchment 9: Temperatures

Attatchment 10-13: Waveforms. Everything looks ok.

Attatchment 14: Leakage current

18:55

System wide checks ok. Merger ok. Temperatures ok. The beam is on target and everything runs smoothly.

Beam transformer shows a small decrease in beam intensity, not drastic but small slow decrease, see attachment 22. Target density 4e11. Vacuum pressue ok.

Attatchment 15: Statistics

Attatchment 16: Temperatures

Attatchment 17-20: Waveforms

Attatchment 21: Leakage current

19:28

Run40 - Beam dropped intesntiy at 19:17, moved detectors out, called gleb. Beam intensity started increasing again - not sure whats happenig at present (see image 23). 

20:26

Around 19:50 beam decreased again and stayed down for a while. Beam not stable. Gleb was called, target turned off, beam restabilied - around 2.5e7 ish. Unsure if it will remain stable during the night (image 24).

20:35

detectors moved back in. Target back in, stable at 4e11.

Potentiometer Left: 36.54 mm

Potentiometer Right: 70.49 mm

Beam stable at the moment (image 25).

System checks 20:40

   
             Base         Current         Difference
aida03 fault      0x0 :      0x1 :      1  
aida04 fault      0x0 :      0x1 :      1  
aida05 fault      0x0 :      0x1 :      1  
aida06 fault      0x0 :      0x1 :      1  
aida07 fault      0x0 :      0x1 :      1  
aida08 fault      0xe :      0xf :      1  
aida09 fault      0xb :      0xc :      1  
aida10 fault      0x0 :      0x1 :      1  
aida13 fault      0x0 :      0x1 :      1  
aida14 fault      0x0 :      0x1 :      1  
FPGA Timestamp error counter test result: Passed 6, Failed 10
If any of these counts are reported as in error
The ASIC readout system has detected a timeslip.
That is the timestamp read from the time FIFO is not younger than the last

System wide checks ok except the FPGA timestamps - see error above - collected them and it went away. Merger ok. Temperatures ok. The beam is on target and everything runs smoothly for now.

Attatchment 26: Temperatures

Attatchment 27-30: Waveforms

Attatchment 31: Leakage current

21:50

FEE temperatures OK

System wide checks OK

Statistics and spectrum browser rate look OK

Merger and tape server OK

Monitoring code rates are consistent with beam on target

X2go seems to not be loading full screen for me - may be my laptop misbehaving?

Can see ring intensity has been stable for the last hour, target density is 4.33e11 and YR09 pressure is 1-2e-10 mbar.

23:22

Target density 4.3e11, beam intensity stable.

Monitoring code rates are consistent with beam on target

Fee temps all OK

System checks OK

Statistics and FEErates OK.

Merger and tape server OK

14:01

Run 36 started.

We put both detectors to the fully out position. Detectors then driven IN using the pnuematic motor only once the beam is ready and driven fully out before beam dumping.

We notice the right arm is significantly slower than the left arm and does not manage to go fully out before being told to go back in. This is not ideal.

Run stopped.

14:10

Run 37 started

Right arm is positioned at pot = 70.49 and remains stationary. The left arm is moved with the ring cycle. When IN left arm pot = 62.71 mm. When out left arm pot = 18.89 mm

Movement signals are being saved to jan MBS system and can be used to seperate out injection periods on other runs where both detectors will be stationary.

All beam and target settings are the same as for Run 35.

Spectrum browser rates for each FEE when left arm IN shown in (attachment 1). Rates dependent on beam cycle, when detectors move out, rates in left arm drop significantly as expected.

XY and energy histogram plots from monitoring code (attachments 2+3)

We see the Rutherford much more well defined on the bottom left detector now (it is further in and halo effect is reduced). Still some low energy counts (may be due to detector movement -> need to test without beam)

Top left detector energy histogram looks a lot different, still much halo effect.

we will collect some stats for 30 mins or so

14:57

Run 37 Stopped. Run 38 started.

Faraday cup to the ring closed. No beam in the ring. Left arm of the detectors still moving IN and out of the beam with the ring cycle.

Very little counts observed in energy spectra.

15:02

Run 38 stopped so Gleb can change the beam energy. Run 39 started.

07:10

FEE temperatures OK

System checks OK
Merger and tape server OK
Statistics look OK,
Rates in the detectors from the mointoring code indicate we have beam on target.

Detector leakge current appears to be following same pattern as yesterday -> temperature (attachment 1)

Merger stats (attachment 2) - quite a few more pause / resume statements than normal - noise last night?

Target density appears stable over the last 3 hours ~3.8e11 at/cm2, ring pressure stable YR09 ~1.5e-10 mbar

Beam injection looks stable over the last few hours.

09:08

FEE temperatures OK -aida03 and aida09 0.5 C over 65C warning.

system checks OK

ADC data item stats  OK

Spectrum browser rate (attachment 3)

Merger and Tape server OK

Monitoring  xy and energy histograms since zero'd last night (attachments 4+5)

Target density slight drop to ~3.5e11 at/cm2. Pressure in the ring stable. CB attempting to optimise target density and ring pressure.

Beam injection into the ring still good

11:04

FEE temperatures OK

System checks OK

ADC data items and spectrum browser rates OK

Target density ~4.6e11 at/cm2, ring pressure looks OK ~1e-10 mbar

Beam injection still good.

Merger and tape server OK

12:45

Beam injection over last 2 hours has been stable

Target density 4.75e11 and stable. ring pressures are stable.

FEE temperatures OK

System checks OK

ADC data items stats and spectrum browser rates look OK

Merger and tape server OK

14:01

We wish to test the beam ahlo on injection so are ending run

Run stopped.

22.51 DAQ continues file G22-86/R35_36

      DSSSD bias OK - attachments 1-2

      FEE64 temperatures - attachments 3-4
      CRYRING hall ambient temperature 20
      FEE64 temps tracking ambient temperature - aida01, aida03, aida09 and aida15 - all ( just ) over 65 deg C

      All system wide checks OK

      WR timestamps OK - attachment 5

      ADC, DISC and PAUSE data item stats - attachments 6-8
       hot channels aida01 ( 91k ), aida04 ( 12k ), aida15 ( 11k ) 

      per FEE64 Rate spectra - attachments 9-10
       aida04 & aida13 only FEE64s with significant rates and systematic rate variation with channel #

      per FEE64 1.8.L, 1.8.H and 1.8.W 20us FSR spectra - attachments 11-16

      Merger, Merger stats and TapeServer OK - attachments 17-19

23.16 All histograms, stats and merger stats zero'd

      Online analysis spectra - attachments 21-26
       only the inner quadrants of the 4x DSSSDs are correctly mapped - attachment 21
       observe double peak structure in DSSSD0 rate spectra - radiation damage most forward lab angle strips? - attachment 24

23.23 restart online analysis - zero spectra

23.30 YR12DTIC 2.5e7/s
      YR09 vacuum 7e-11 - 1.2e-10 mbar
      density 4e11/cm2
      See attachments 27-34



01.30 DAQ continues file G22-86/R35_39

      FEE64 temperatures - attachments 35-36

      ADC data item stats - attachment 37

      DSSSD leakage currents - attachment 38

      YR12DTIC 2.5e7/s
      YR09 vacuum 7e-11 - 1.2e-10 mbar
      density 4.1e11/cm2


03.05 YR12DTIC 2.2e7/s
      YR09 vacuum 7e-11 - 1.2e-10 mbar
      density 3.5e11/cm2

      DAQ continues file G22-86/R35_42

      DSSSD leakage currents - attachment 39

      FEE64 temperatures - attachments 40-41

      ADC data item stats - attachment 42

05.05 DAQ continues file G22-86/R35_47

      YR12DTIC 2.5e7/s
      density 3.8e11/cm2

      DAQ continues file G22-86/R35_42

      DSSSD leakage currents - attachment 43

      FEE64 temperatures - attachments 44-45

      ADC data item stats - attachment 46

      per FEE64 Rate spectra - attachments 47-48
       aida12 asic #1 and # 2 HEC activity 
       and following Check ASIC load aida12

      ADC data item stats - attachment 49


Shift Summary

Beam, target density and vacuum appear to have been stable overnight

FEE64 temperatures continue to cycle

Evidence of some radiation damage DSSSDD 0 presumably for most forward lab angle strips?

aida12 asic #1 and #2 high rate HEC activity - fixed by ASIC check load