16:10

We start a new run after doing some test with the motor. Injection time is now a 6s, moving of the motors is working fine.

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

No target

23:47

Run 24 started - Beam on target

Beam energy is 1.5 MeV.

Horizontal beam position = 7.0 mm, vertical beam position = -1.0 mm.

Target density ~ 1e11 at/cm2 (Still Fluctuating, after temperature increase)

Beam intensity at inj ~ 2.5e7

Detectors are positioned IN. Left arm = 62.71, right arm =  64.60 mm

Histograms and stats zero'd, monitoring code restarted.

Beam in the ring ~ 10 minutes.

Pressure in YR09 E target ~ 5.2e-11 mbar.

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

Leakage current stable

00:23

Target density ~4.65e11 atoms/cm2

Beam intensity at inj ~ 2.7e7

Beam intensity dropped to 2.1e7 in 10 minutes. Proportionall this is much greater than before. 

Run 24 stopped.

18:05 We believe we have an overlap between the beam and the target. Run 22 started.

          CARME detectors in with the servo ONLY. Left arm pot 36.5 mm, right arm pot 37.7 mm

          Target density apporx 2e11 atoms/cm2.

          Shots into the rin partially stable (sometimes consecutive injections at high intensity, sometime apporx 1 in 4 fail rate).

          We plan beam run overnight, remote shifters will check on the progress every 2 hours.

18:32

Everything ok. Temperatures and leakage current are okay.

Attachment 1: Rates

Attachment 2: Temperatures

Attachment 3: Waveforms layout 7

Attachment 4: Waveforms layout 8

Attachment 5: Waveforms layout 1

Attachment 6: Waveforms layout 2

Attachment 7: Leakage current

Attachment 8: xy plot for all four detectors.

21:00 Checks made, everything okay!

23:00 Checks made, everything okay!

Attachment 9: Rates

Attachment 10: Temperatures

Attachment 11: Waveforms layout 1

Attachment 12: Waveforms layout 2

Attachment 13: Waveforms layout 7

Attachment 14: Waveforms layout 8

Attachment 15: Leakage current

14.02.2023 01:00

Checks made, everything okay!

Attachment 16: Waveforms layout 1

Attachment 17: Waveforms layout 2

Attachment 18: Waveforms layout 7

Attachment 19: Waveforms layout 8

Attachment 20: Rates

Attachment 21: Temperatures

Attachment 22: Leakage current

02:27

FEE temperatures OK

System checks OK

ADC data items appears ok for all FEEs, except aoda09 shows rates of ~1kHz. Spectrum borwser shows this is from a single strip. Checl load aida09 several times but no change to the rate.

Leakage current appears fine. (Attachment 23)

Merger and tape server OK

Ring pressure appeared to have dropped and the target density had dropped to approx 5e10 at/cm2 range. Target nozzle moved 200 steps. Density back to 2.5e11 range and pressure is high -11 low -10 mbar range. <----- Operator mistake

XY plot all detector (attachment 24)

EyTotal all detectors (attachment 25)

05:08

Target density appears to have been very stable over the last few hours ~2e11 at/cm2. Ring pressure also appears stable.

FEE temperatures OK

System checks OK

ADC data items appears ok for all FEEs,Aida09 rate appears to be reduced again.

Leakage current appears fine.

Spectrum browser rates (attachment 26)

Spectrum browser stats (attachment 27)

Spectrum browser 1.8*L pn (attachment 28)

Spectrum browser 1.8*L nn (attachment 29)

New merger stats (attachment 30)

I am not confident we are seeing significant Rutherford scattering accumalated so far.

07:18

FEE temperatures OK

System checks OK

Stats OK

Leakage current appears fine.

Spectrum browser rates OK

Spectrum browser stats OK

Spectrum browser 1.8*L OK

Spectrum browser 1.8*L nn OK

New merger stats OK

7:40

Noticed operator mistake at 3 am. Ring pressure was very bad in YR08. Unlikely we had much beam since then. Moved nozzle to improve pressure.

See attach 38 & 39.

08:51

Checks all ok. Temperatures and leakage current ok. Merger ok. 

Attatchment 40: Rates

Attatchment 41: Temperatures

Attatchment 42: Waveforms layout 7

Attatchment 43: Waveforms layout 8

Attahcment 44: Waveforms layout 1

Attatchment 45: Waveforms layout 2

Attatchment 46: Leakage current

Attatchment 47: Gasjet board - not much change from last check

Attatchment 48: Vacuum pressures 

02.35 DAQ continues file G22-88/R17_30

02.38 Check ASIC load
      aida01 asics # 1 and #4 & aida12 asic #2 HEC events removed



09.05 DAQ continues file G22-88/R17_53
      DSSSD bias & leakage current OK - attachments 10-11

      FEE64 temperatures OK - attachment 12

      ADC data item stats OK - attachment 13
       hot channels aida01 ( 67k ) and aida15 ( 7k )

      WR timestamps OK - attachment 14

      per FEE64 Rate and Stat spectra - attachments 15-16

      Merger, Merger stats and TapeServer - attachments 17-19

09.19 New run G22-88/R18
      all histograms & stats zero'd

      CB starting up 4He target preparatory to returning 16O2+ beam to CRYRING

      L & R arms all out

09.26 4He target c. 2e11c.2
      16O2+ beam c. 3e5/s

09.58 4He target c. 3e11/cm2
      16O2+ beam c. 5e5/s at start of cycle
      See attachments 20-22

10.40 New run G22-88/R19
      all histograms & stats zero'd

      CB will attempt to steer the beam 
      all steering options set to 0mm except YR09 target offset (vertical = -9mm) and (horizontal = 9mm) 


10.52 R arm fully in, L arm fully out
      beam steering hard right

14:24 Frank has informed us that the CRYRING team will be examining the electron cooler for th enext few hours. Run 19 stopped, Run 20 started. 
      Detectors moved fully out, target OFF. 
      All histograms and stats zero'd
      Access to the cave is required, beam OFF

15:45 Channel 1 back to 150V.


17.40 DAQ continues file G22-88/R20_13
      DSSSD bias & leakage current OK - attachments 23-24

      FEE64 temperatures OK - attachment 25

      All system wide checks OK except aida08 FPGA error - attachment 26

      WR timestamps OK - attachment 27

      ADC data item stats OK - attachment 28
       hot channels aida01 ( 80k ) and aida15 ( 7k )

      per FEE64 Rate and Stat spectra - attachments 29-30

      Merger, Merger stats and TapeServer - attachments 31-32

23.12 DAQ continues file G22-88/R20_20
      DSSSD bias & leakage current OK - attachments 33-34

      FEE64 temperatures OK

      All system wide checks OK except aida08 FPGA error - attachment 35

      WR timestamps OK - attachment 36

      ADC data item stats OK - attachment 37
       hot channels aida01 ( 80k ) and aida15 ( 7k )

      per FEE64 Rate and Stat spectra - attachments 38

      Merger, Merger stats and TapeServer - attachments 39-40



03.47 DAQ continues file G22-88/R20_28

      DSSSD bias & leakage current OK - attachments 41-42

      FEE64 temperatures OK - attachment 43

      ADC data item stats - attachment 44
       aida12 rate - HEC events 

      per FEE64 Rate spectra - attachment 45

      Check ASIC load 

      ADC data item stats - attachment 46

      per FEE64 Rate spectra - attachment 47

      Merger, Merger stats and TapeServer - attachments 48-49





      

13:37 Run started - no beam in the ring (One of the ring magnets was still on RED when it should have been set to green by HKR)

14:28 Beam ON - still observe beam halo on DSSD0 (Top left)

          YR09 Vertical and horizontal offsets set to -9.0 mm

14:36 Target ON, Beam ON

         We can see the beam halo on the detectors again in the same position as previous tests. The energy histograms for the detectors show only low energy events, except bottom left detector where we see a peak around 20 MeV. With the target on we see additional events but we only see events at ~20MeV for the    bottom detector still in the bottom left detector. We are moving the detectors IN to try and see events from scattering of the beam on the target. We may not be hitting the target with the beam.

15.29  We observe data in DSSD # 0, 2, 3 (top left, bottom left, bottom right) which is consistent with a line beam halo on the detector. The top right detector is positioned higher by ~10 mm than the top left detector so it is not unphysical to not see any events in this detector from the halo.

           The energy of events in each detector is not consistent however. In DSSD #0 and 3 we see mainly low energy events (some small number of 20 MeV events is seen) but in DSSD #2 we see mainly higher energy (20 MeV) events. See attached energy histograms, xy and Ex vs x plots (attachments 1-3).

          This is consistent with the data from channels seen in MIDAS for aida04 (DSSD #0) and aida12 (DSSD#2).

          Switched FEE64 range bit frpom 20MeV FSR to 1GeV FSR to see if any events are over the 20 MeV range of the low energy channel . Slow comparator from 0x64 to 0x5. We see no events just above 20 MeV  in aida04 but do in aida12. See attachments 4 & 5

          No data ( > 20MeV nominal ) out of range in DSSSD #1

         FEE range set back to FSR to 20 MeV and slow comparator set back to 0x64

15:57  Beam on target. Left arm fully out (pot 18.8 mm), right arm fully in (pot 83.69 mm). Beam injection ~1e6, target density 2e11. Cycle time between 4-13 s.

        Leaving for more stats

17.30 Routine system checks

         DAQ continues file G22-88/R16_14

        DSSSD bias and leakage current OK - attachments 8 & 28

         DSSSD #2 bias -100V, all other DSSSDs -150V

         ambient temperature +17.0 deg C

      FEE64 temperatures OK - attachment 9

      All system wide checks OK

      WR timestamp OK - attachment 10

      aida01 & aida03 ASIC settings - attachments 11-12

      AIDA ADC, PAUSE, DISC, correlation - attachments 13-16

        ADC data item rates OK

     per FEE64 Rate spectra - attachments 17-18

      note change in rates for aida12 & aida13 - presumably due to beam cycle?

    per FEE64 1.8.L, 1.8.H and 1.8.W 20us FSR spectra - attachments 19-24

    Merger, Merger stats and TapeServer - attachments 25-27

18.10 ML CRYRING vacuum - attachment 29

FEE spectrum browser statistics attachment 30 - not many missing channels - aida04 asic 2 perhaps?

18:40 End of run. Target x position moved out by 3000. Faraday cup to the ring closed. Detectors moved fully OUT.

Run 17 started - alpha background

22:03

Before this run we checked quickly  beam with the target on but it does not make sense with the current status of the beam.

We removed target and starte Run14

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

Leakage current stable

12.46 DAQ continues G22-88/R10_14

      c. 20MeV 16O2+ + 4He 

      DSSSD bias OK - attachment 1
      ambient temperature 17.7 deg C ( c. 1deg C increase cf. earlier this week )

      FEE64 temperatures OK - attachment 2

      All system wide checks OK
      WR timestamp control OK - attachment 3

      ADC data item stats - attachment 4
      FEE64 rates c. 0Hz except 'hot' channels aida01 ( 71k ) and aida15 ( 8k )

      per FEE64 Rate and Stat spectra - attachments 5-8
       events ( beam? ) aida01 asic #4 and aida04 asic #4 ( c. 200k per ASIC channel )
       
      per FEE64 1.8.L spectra - attachments 9-10
       most spectra showing background and, possibly, a small amount of scattered beam?

      per FEE64 1.8.W spectra - 20us FSR - attachments 11-12

      aida04 3*L and 4*L spectra - attachments 13-15
       distribution by strip # - uniform across asic# #4, continuing across asic #3 with abrupt fall off c. channel 9
       not Rutherford - more consistent halo/beam scattering?
       what are the current lab angles subtended by the DSSSDs?
   
      Rutherford cross section for 20MeV 16O+4He



               Reaction: 4He(16O,16O)4He

                      A:           4         16         16          4
                      Z:           2          8          8          2
              Mass(amu):    4.002603  15.994915  15.994915   4.002603
             Error(keV):       0.001      0.002      0.002      0.001
                 Origin:
                 Status:

  Projectile lab energy:   20.000 MeV
              CM energy:    4.003 MeV

                     Particle 3                                 Particle 4
                   ( scattered )                                ( recoil )

  Lab         Cross Section         CM    Lab/CM    Lab        Lab      Lab
 Angle      Lab           CM       Angle   Ratio   Energy     Angle    Energy
 (deg)           (mb/sr)           (deg)           (MeV)      (deg)    (MeV)

  0.00 NaN          Inf            0.000 NaN       20.000     90.000    0.000
  1.00 0.143028E+09 0.572301E+07   4.999   0.040   19.976     87.500    0.024
  2.00 0.894079E+07  356425.      10.017   0.040   19.902     84.992    0.098
  3.00 0.176669E+07  69982.6      15.072   0.040   19.780     82.464    0.220
  4.00  559329.      21951.4      20.186   0.039   19.607     79.907    0.393
  5.00  229335.      8887.05      25.382   0.039   19.382     77.309    0.618
  6.00  110782.      4221.76      30.690   0.038   19.103     74.655    0.897
  7.00  59959.1      2235.75      36.144   0.037   18.768     71.928    1.232
  8.00  35299.6      1279.52      41.790   0.036   18.371     69.105    1.629
  9.00  22192.2      775.052      47.692   0.035   17.907     66.154    2.093
 10.00  14729.2      489.347      53.941   0.033   17.366     63.029    2.634
 11.00  10261.1      317.919      60.685   0.031   16.732     59.658    3.268
 12.00  7514.20      209.725      68.185   0.028   15.976     55.907    4.024
 13.00  5900.47      137.756      77.018   0.023   15.035     51.491    4.965
 14.00  5693.43      85.2271      89.184   0.015   13.688     45.408    6.312

 Maximum lab scattering angle (  14.49 deg ) exceeded

________________________________________________________________________________



      aida01 4*L spectra - attachments 19-23
       channels 0-8 - high stats structure(s) at low energy
       channels 9-16 - high energy peak cf. aida04 asic #4 spectra

      Merger, Merger stats, TapeServer - attachments 16-18

Started Run 11 with beam ON. 

We observe the same pattern of counts in DSSD0 (Top left detector) but not in DSSD1,2,3 (attachment 25). Moving in the left arm with the pneumatic we see a large drop in 
the rate on DSSD0 to essentially zero. The beam on the CRYRING monitor appears to disappear. 
When we move the right pneumatic IN, we observe an increase in the number of counts in the bottom-left part of the detector. The position is likely to be a mistake in the 
strip assignment.  
No increase observed in the leakage current. Will try systematically tomorrow.

Beam position monitoring from the CRYRING are shown in attachments 25-27

8:58

System wide checks okay, except

   
             Base         Current         Difference
aida08 fault      0x0 :      0xc :      12  
aida09 fault      0x0 :      0xb :      11  
FPGA Timestamp error counter test result: Passed 14, Failed 2
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

Temperatures okay

Attatchment 1: Layout 7 Waveforms

Attatchment 2: Temperatures

Attatchment 3: Layout 8 Waveforms

Attatchment 4: Layout 2 counter okay

Attatchment 5: Layout 4 spectrum okay

Attatchment 6: Leakage current okay

Switched to run 10 (run 9 is overnight background)

10:00 Target pressure on. Attachment 7

Beam on target

Observe low counts. Only aida4 showing anything (attachment 8)

See a peak around 19 MeV in LowEnergyExratedssd0 (can only see in the dssd0) that is assumed to be Rutherford scattering - Attachment 12

Temperatures ok

Wavefroms on attatchment 9 show only signals from aida04 - attachment 9

/////// UPDATE ////////

Peak observed is not from Rutherford, we think it is beam (or part of it) hitting the detector

Attachment 10 shows waveforms after the beam was turned off -> counts in aida 4 are gone.

Beam off = no peak at 19 MeV for LowEnergyExdssd0.

Leakage current ok (attachment 11)

//// BEAM ON AGAIN UPDATE ////

Still see peak at 20 MeV, see attachment 13

Peak is not in dssds 1,2,3 only in dssd 0 (Top left detector) (attatchments 14,15,16 respectively)

Leakage currents OK (attatchment 17)

Attachment 18: LowEnergyXYtotalDSSD0 plot showing all hits in one spot (this is with BEAM AND TARGET on)

TEST: Turning off target while beam is running, can still see hotspot in DSSD0 but no others, so definitely beam related. (attatchment 18)

Tom's estimate: 10^6 particles in 10 minutes - not as many as can be handled

/////// UPDATE ////////

No beam, no target (target off)

All checks ok (see attachment 20 and 21 for rates and temperatures)

Attachment 22: Layout 7 waveforms

Attatchment 23: Layout 8 waveforms

Attachment 24: Layout 2 waveforms 

Attachment 25: Layout 1 waveforms (rate)

Atatchment 26: Leakage current

Attachment 27: LowEnergyExRatedssd 0,1,2,3 respectively

Note: Data similar to that seen in DSSD0 (19 MeV peak) is not observed in MIDAS for the other DSSDs -> Issue is not related to the monitoring code 

Current pulser widths excel spreadsheet attached

09.58 DSSSD bias OK - attachment 1 

Ambient temperature +16.1 deg C FEE64 temps OK - attachment 2 

ADC data item stats OK - attachment 3 
 aida15 asic #2 high rate - asic u/s

system wide tests OK *except* aida09 - attachments 4-5 
 aida09 WR status 0x20 aida09 WR timestamp incorrect cf. all other FEE64s

per FEE64 Rate spectra - attachment 6

per FEE64 1.8.L spectra - attachments 7-8 
 aida14 pulse peak witdh 58 ch FWHM
 aida11 pulse peak witdh 48 ch FWHM

per FEE64 1.8.W spetra - 20us FSR - attachments 9-10
 

12.00 

aida09 WR timestamp issue resolved by FEE64 reboot 


14.10 

Safety pins removed from detector motion system. CB performs one, complete DSSSD movement cycle. Zero all histogram and stats per FEE64 Stat spectra ( log scale ) and 
ADC 
data item stats for the complete DSSSD movement cycle - attachments 11-12 
No change observed in DSSSD leakage currents during DSSSD movement cycle. 

15.35 

Resolved issue from previous elog. Begin background run writing data to disk.
ASIC check load 
Start DAQ G22-88/R1 background alpha 
EG&G Ortec 448 Pulser OFF 
ASIC settings 2024Jan20-12.02.08 
slow comparator 0x64 ( all FEE64s *except aida15 asic #2 0xff ) 
All histograms set to zero

DSSSD bias OK - attachment 13 
FEE64 temps OK - attachment 14 

WR timestamps OK - attachment 15 

ADC data item stats - attachment 16 
aida15 asic #2 u/s - rate c. 250k 

ADC data items/s Merger, Tape Server & Merger stats - attachments 17-19 
 data rate to disk c. 2Mb/s dominated by aida15 asic 2

01.07 DAQ continues file G22-88/R1_46
      background alpha

      DSSSD bias OK - attachment 1
      FEE64 temps OK - attachment 2
      ADC data item stats - attachment 3
       aida15 asic #2 u/s - rate c. 266k 

      aida11 1*L spectra - attachment 4

      ADC data items/s Merger, Tape Server & Merger stats - attachments 5-7
       data rate to disk c. 2Mb/s dominated by aida15 asic 2


10.05 DAQ continues file G22-88/R1_79
      background alpha

      DSSSD bias OK - attachment 8
       ambient temperature 16.8 deg C
      FEE64 temps OK - attachment 9
      ADC data item stats - attachment 10
       aida15 asic #2 u/s - rate c. 266k 

      aida11 1*L spectra - attachment 11

      ADC data items/s Merger, Tape Server & Merger stats - attachments 12-14
       data rate to disk c. 2Mb/s dominated by aida15 asic 2

10.12 per FEE64 Stat spectra - attachment 15
      missing channels aida03, aida04, aida05 & aida15
      Check ASIC load aida03, aida04, aida05 & aida15

13:25 Overnight leakage current plot - att 16


13.38 DAQ continues file G22-88/R1_92
      background alpha

      DSSSD bias OK - attachment 17
       ambient temperature 16.8 deg C
      FEE64 temps OK - attachment 18
      ADC data item stats - attachment 19
       aida15 asic #2 u/s - rate c. 266k 

      aida11 1*L spectra - attachment 20
       ASIC check load at 10.12 should result in 1-2 hits per channel in the Stat spectra aida03, aida04, aida05 and aida15
       Channels which continue to show zero counts likely indicate a FEE64-adaptor PCB connection issue
       Channels which now show 1, or more, counts cf. attachment 15 likely correspond to channels now working following the check ASIC load

      ADC data items/s Merger, Tape Server & Merger stats - attachments 21-23
       data rate to disk c. 2Mb/s dominated by aida15 asic 2

13.48 Stopped DAQ file G22-88/R1_93

      DSSSD bias OFF
      FEE64 power OFF


16.00 Installed FEE64 power cable to aida16
      Replaced aida15 with new FEE64 MAC 41:f6:5a

      Update dhcpd.conf
      Update MIDAS config to include aida16

      FEE64 power ON
      
      All system wide checks OK

      DSSSD bias OK - attachment 24

      FEE64 temperatures OK - attachment 25

      ADC data item stats - attachment 26
       aida15 rate changes from c. 260k to c. 25k ( 2x 'hot' channels, 1x channel missing, all other channels OK )

      per FEE64 Rate spectra - attachment 27

      per FEE64 1.8.L spectra - attachments 28-29
       pulser peak width aida11 44 ch FWHM, aida14 57 ch FWHM

      per FEE64 1.8.W spectra - 20us FSR - attachments 30-31

      
     Update NewMerger startup script and Options for 16x FEE64s - see attachments 32-33


16.20 file G22-88/R2
      Pulser 50Hz

16.28 DAQ stop

      Pulser OFF

      All histograms zero'd

16.33 DAQ starts file G22-88/R3
      alpha background

      ADC data item stats OK - attachment 34

      NewMerger, TapeServer and Merger stats - attachments 35-38

16.50 Pulser peak width spreadsheet for file R2 - attachment 39

20.32 DAQ continues file G22-88/R3_9

      DSSSD bias OK - attachment 40

      FEE64 temperatures OK - attachment 41

      ADC data item stats - attachment 42
       aida15 rate c. 25k ( 2x 'hot' channels, 1x channel missing, all other channels OK )

      per FEE64 Stat spectra - attachment 43

      Merger, Merger stats and TapServer - attachments 44-46

      Disc data items - attachment 47
       aida15 disc rate c. 8k
      Disable aida15 disc ( fast comparator ) outputs for asic#3 - attachment 48 
      Disc data items- attachment 49
       all FEE64s rate << 1Hz
    
     Update NewMerger startup script and Options for 16x FEE64s - see attachments 32-33

10:21 June 17

New energy: 1.125 MeV/u

Target in. Run 98 started.

Run 99 overlap check.

Run 100 back to acquisition as run 98.

Run 96 - as run 89, while we wait for beam energy change at higher energies

Run stopped around 08:56 June 17

Run 97 - target out, beam optimisation for higher energies.

04:00 17 June

Moved the detectors back to the usual configuration (as per run 89).

Moved target away - background run.

Some issues with run numbers - see attached run name R93, but run 94 is written. See attached. 93 and 95 contain data. 94 does *not* exist.

No obvious differences wrt. target run, except Rutherford.

~ 2:00 17 June

Run 91

Attempted to move the detectors closer to the beam, and move them in sync with the injection.

Found best position was

Right arm: s by 5 mm, r p in (not moving). No benefits from moving. 10 mm + r p in on sync results in beam clipping during injection. 69.55 mm not moving.

Left arm: s by 5 mm, l p in (in sync with motion). Due to the short beam preparation time, only the trigger out was used as per screenshots below. 23.58 -- 67.90 moving.

Saw spike on leakage current for both detectors on the right arm. Unsure if this because they are being moved, or because they were hit with beam. Leakage current recovered.

Run 92 - acquired data as above.

Rutherford locus more clear on left arm detectors. No clear sign of nuclear reactions signals.

00:10

As run 89, detectors moved fully out.

01:20

TL detector noisy. Shook it. Fixed it.

Temps OK. Noise spike reported in Run 89 still there.

Target 6E11. Beam stable.

02:00

TL detector noisy. Shook it. Fixed it.

ELOG STOPPED WORKING

17:20

(Run 87 Junk and Run 88 does not exist)

Beam charge state set to 5+. Energy is ~1.06 MeV/u

Cooler voltage setpoint 590.3 V.

FC20 read value 589.07 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 3.5 mm (new overlap position with new beam)

vertical beam position  0.0 mm

Beam intensity 7.0e+6 particles.

Target density ~5e11 at/cm2

Beam is stored in the ring for ~20 seconds. From beam overlap tests ~ 75% of the beam is destroyed in this time.

Beam halo appears slightly reduced. This may be due to reduced intensity and reduced injection rate (20 s vs 5s previously)

18:00

FEE64 temperatures OK

ADC data item stats OK

per FEE64 Rate spectra OK

Beam intensity 1.17e+7 particles

Target density ~5.25E11 atoms/cm2

20:28

FEE64 temperatures OK

ADC data item stats OK

per FEE64 Rate spectra OK

Beam intensity 1.08e+7 particles

Target density ~3.84E11 atoms/cm2

23:58

Temps OK. Stats OK. Merger OK. Write to disk OK.

Waveforms attached.

Beam keeps going away due to "solenoid" issues.

On-line analysis screenshots attached.

Without beam, we see a clear noise spike in all detectors every 50-200 seconds randomly. This is *not* correlated with beam injection or dump.

Checkloaded - no effect. Beam back - no changes.

06:50

No sign of the resonance during night shift. New run started but when operators are avaiable we will likely move to higher energies to try and observe the (p,a) reaction.

Cooler voltage setpoint 247.8 V.

FC20 read value 247.25 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm

vertical beam position  -5mm

Beam intensity 7.0e+7 particles.

Target density ~5e11 at/cm2

05:00

Cooler voltage setpoint 247.45 V.

FC20 read value 246.9 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm

vertical beam position  -5mm

Beam intensity 7.0e+7 particles.

Target density ~5e11 at/cm2

Target temperature is 38.6 K. Values of E1 is 819 Hz, 2.7A, 1.85e-1 mbar

All checks OK

03:00

Cooler voltage setpoint 247.7 V.

FC20 read value 247.15 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm

vertical beam position  -5mm

Beam intensity 7.0e+7 particles.

Target density ~5e11 at/cm2

Target temperature is 38.6 K. Values of E1 is 820 Hz, 2.7A, 1.8e-1 mbar

All checks OK

03:34

Noise increase in top left dssd. Servo motor moved to resolve issue.