06:01

Rutherford rate was decreased compared to previous values. Max rate ~ 50 counts for the peak, average ~20 counts. 

Temperature increased to 125 K

No large increase in chamber pressure observed. 

06:25

Temperature setpoint back to 110 K.

Rutherford rate has increased, however is quite variable. Peak height 3*10^1 to 10^2 range. 

06:54

Setpoint = 110 K

Ruthrford rate has stabilised around 7*10^1 to 10^2 peak height.

Merger OK

Data rate ~ 1300 kb/sec

Leakage current ~ 3.22 uA

Temperatures OK

System checks OK

22:49

Run 37 started.

D+ beam deuterium target. D+ beam energy is 2 MeV/u. (beam calc calculation is 1.9211 MeV/u)

Target density is about 1.3e12 at/cm2. FLuctuations between 1e12 and 1e13 at/cm2.

All four detectors positioned fully out and stationary.

Left potentiometer = 18.86 mm

Right potentiometer = 19.8 mm

Ring cycle time is 1 minute. Note we see some hydrogen in in the spectrum, this disapears after a few seconds.

Target T1=30K, T2=31.9K.

Nozzle position x=-3.11, z=1.77 mm

YR09-Etarget pressure = 1.04e-10 mbar.

Cooler set value = 1126V, 15 mA. Read value = 1068V, 13.22 mA

Detector 4 is still a bit unstable in its leakage current but the data coming through looks good. Some crap is periodically written to disk when leakage current spikes. Attachment 1,2 for leakage currents.

23:30

Checks OK - high but managable rates from DSSD4

01:00

Checks OK - DSSD4 has settled down. Leakage current attachment 1

Ex energy histograms - attachment 2

X2go check on gas target shows density has dropped to 5e11 at/cm2 in last half an hour. 

03:56

Checks OK

DSSD had more issues but once more settled

Temps OK

Rates OK

DAQ continuing

06:00

Checks OK

08:00

We can now change to 1.5 MeV/u no storage mode enabled. 

15:30

1.5 MeV/u beam currently being tuned

Target is ON, setpoint = 135 K

System checks OK - white rabbit fail diff ~ 9

Temperatures OK

Merger OK

Data rate ~ 1400 kb/sec

Leakage current ~ 3.41 uA

Aida 1 and 2 missing channels from previous days appear working on stat layout 2 and xy pixel total plot (attachment 3)

17:12

Beam tuning complete. See attached Ex rate histogram.

The cryo compressor is being turned OFF for around 1 hour to remove any frozen nitrogen which may be the cause of the increased pressures observed.

Beam OFF to do so.

System checks OK - white rabbit fail diff ~ 9

Temperatures OK

Merger OK

Data rate ~ 200 kb/sec

Compressor OFF, setpoint on controller is 273 K

18:51

Pressure in the ring recovered quickly after closing valves to gas jet (attachment 5)

Increasing temperature caused a large spike in pressure in the inlets. E1 turbo briefly shut down due to the pressure increase, since restarted and pressure back in the -4 mbar range. (attachment 6)

Temperature being decreased

Beam back ON

data rate ~ 1500 kb/sec

merger OK

Temperatures OK

System checks OK - white rabbit diff ~ 12

21:58

After cooling the jet target, expected density is not achieved. E4 pressure is ~4E-10 mbar compared to ~2E-8mbar previously. Temperature reduced to 127K E4 pressure increases however stilll within -10 mbar range.

With beam on target we see rutherford peak at ~3 MeV, however it is much reduced.

Beam OFF to investigate inside the cave.

Decreasing temperature of nozzle in 0.5 k steps to see effect on E4 and S1 dump.

22:15

New run 76 - beam on target with definite target overlap [coasting]

Cooler voltage setpoint 247.1 V.

FC20 read value 246.55 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm (new beam target overlap)

vertical beam position  -5mm

Beam intensity 7.5e+7 particles.

Target density ~6.2e11 at/cm2

Target temperature is 38.5 K. Values of E1 is 820 Hz, 2.6A, 1.85e-1 mbar

00:15

System and detector check is OK. E1 pressure is increasing slowly. target 4e+11/cm2

02:15

System and detector check is OK. E1 pressure is increasing slowly. P=2,2e-1 mbar Pump frequency is 807 Hz, 2.7A. Target 5e+11/cm2

03:15

System and detector check is OK. E1 pressure reaches 2,3e-1 mbar, thus flow is decrease a bit. Pump frequency is 800 Hz, 2.8A. Target 6e+11/cm2

04:15

System and detector check is OK. E1 pressure is stabilized. New values: 2.07e-1 mbar, 810 Hz, 2.8 A. Target 5e+11/cm2. Resonance peak not so visible- see attachment 1.

05:43

System and detector check is OK. E1 pressure is slowly increasing. New values: 2.13e-1 mbar, 807 Hz, 2.8 A. Target 5e+11/cm2. Beam intensity stable at 7e+7 particles.

14:45

New run 70 - beam on target with definite target overlap

Cooler voltage setpoint 247.3 V.

FC20 read value 246.75 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm (new beam target overlap)

vertical beam position  -5mm

Beam intensity 7.0e+7 particles.

Target density ~6.3e11 at/cm2

Target temperature is 36.6 K. Values of E1 is 820 Hz, 2.6A, 1.4e-1 mbar

All system checks OK, data rate is ~ 260 kB/s. Statistics attached.

xy and energy histograms following ~20 mins attached.

15:45

I realised we have been running in bunched mode not coasting as we have been previously.

See attached screenshots (4-7) of last 1 hour of running. We will move to coasting.

01:50

Right arm at 64.60 mm

Left arm IN at 36.54 mm

MBS working - hopefully

Target ~3E11

Injection ca. 3E7

horizontal beam position 8.75 mm

vertical beam position  -5mm

Changed electron cooler set point to 247.3 V

Read value 246.75 V

Collector current 4.3A

Histograms and statistics zero'd. Code reset

Rates OK. Temps OK.

NOTE. Between 23:45 and 12:45 the electron cooler was off? We called HKR and they turned it back on. Are we using the same cooler settings? Is the cooler still definitely working properly? Ask Claude in the morning

02:30

The target density started to oscillate between 2e+10 and 3.5e+10. However, the pump speed seems to be stable.

03:50

The oscillations seems to deepend between 1e+10 and 6e+10. Additionally the E1 pump slowed down to 815. As Nikos suggested during the tuning, I tried to lower the temperature from 41K to 40.8K.

04:00 - 04:30

No major change was observed, thus I increased the temperature to 42.2K in order to try to get the pump to the nominal rotation. After 10 minutes, the pump slowed down to 810 and the pressure in E1 reached 2.2e-1. Since increasing the temperature seemed to have a negative effect, I slowly decresed the temperature with steps of 0.2 K, until reaching 40K. At this point, the E1 pump returned to 819/820, the pressure of E1 lowered to 1.6e-1 and the target density seems to be more stable with a value of 2.8e+11.

05:00

The target density started decreasing to 1.5e+10 and the pump speed slowed to 815. I've tried to lower the temperature to 39.8K, but the target density started to decrease. Thus I've set the temperature to 40.2K. The pump speed raised to 818 but the target density remaind at 1e+11 level with oscillations between 8.5e+10 and 1.5e+11. After some minutes, it started slowly increasing towards the 2e+11 region. The E1 pumping speed is stable at 818 and the pressure of E1 is 2.02e-1.

05:10

Electron cooler off, restarted 10 minutes after by calling HKK.

05:30

Target density at 1.5e+11, however, the E1 raised to 2.3e-1 and the pump speed decreased to 810. Since going down seemed to solve it, I decreased the temperature to 39.6K. After 5 minutes the E1 lowered to 1.9e-1 and the pump speed is going up (currently at 814). The target density is at the same level of 1.5e+11.

06:00

Again the target density started to go down, as well the speed of the E1 pump and the E1 pressure reached 2.3e-1. I lowered the temperature to 39.2K: the target density raised to approximately 3.8e+11 (and keeps going up), the E1 pressure lowered to 1.9e-1 and the E1 pump speed started increasing from 810 to 815.

06:30

The target density starting going down again, the E1 started increasing to 2.3e-1 and the E1 pump speed decreased to 810. I lowered the temperature to 38.8K, the density raised to 3.5e+11, the E1 pressure lowered to 1.9e-1 and the pumping speed starting increasing.

14:30

New run 75 - beam on target with definite target overlap [coasting]

Cooler voltage setpoint 247.2 V.

FC20 read value 246.65 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

FakeMotion script running

horizontal beam position 1.0 mm (new beam target overlap)

vertical beam position  -5mm

Beam intensity 8.5e+7 particles.

Target density ~6e11 at/cm2

Target temperature is 36.6 K. Values of E1 is 820 Hz, 2.6A, 1.4e-1 mbar

16:00

Beam intensity 8.5e+7 particles.

Target density ~4e11 at/cm2

Target temperature is 36.6 K. Values of E1 is 820 Hz, 2.6A, 1.68e-1 mbar

DSSSD bias & leakage current OK - attachment 1

FEE64 temperatures OK - attachment 2

ADC data item stats OK - attachment 3

16:58

Pressure on E1 has risen to 1.74e-1 mbar. Target density ~4.5e11 at/cm2.

Turbo is decreased to 818-819 Hz. We will increase temperature sligtly to see if this helps.

17:11

Increase in noise on top left DSSD. Correlates with spike in the source seen on lassie. Moved servo motor out then in. Problem resolved. 

System checks OK

18:35

Tempature has been increase in small steps to 38.4 K. E1 appears to have stabalised at 1.71e-1 mbar. Turbo speed 818-819 Hz. 

Target density ~5.5e11 at/cm2. We will wait to see how it evolves over time.

18:47

Increase in noise on top left DSSD. Correlates with spike in the source seen on lassie. Moved servo motor out then in. Problem resolved. 

20:55

All checks OK

Tempature has been increase in small steps to 38.4 K. E1  1.81e-1 mbar. Turbo speed 818-819 Hz. 

21:48

System checks OK

22:14

Run stopped

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

11:27

Run 29 started. Beam energy is 1.3435 MeV/u with a cooler voltage of 751.3 V.

We observe significantly greater count rate for top right detector (DSSD#1) now that the beam energy has been lowered. ADC over range? Beam target overlap change?

Plan to check optimisation of beam-target overlap and beam settings again.

12:40

Beam lost. Detectors out. R29_11

13:37

Electron cooler is not working again. We will have un-cooled beam again.

Will start a new run 30 for un-cooled beam on target.

Run 41 started.

D+ beam deuterium target. D+ beam energy is 0.75 MeV/u. (beam calc calculation is 0.7619 MeV/u). See previous entry for beamcalc.

Beam calc - Attachment 1

Target density is about 3e12 at/cm2

All four detectors positioned fully out and stationary.

Left potentiometer = 18.86 mm

Right potentiometer = 19.8 mm

Ring cycle time is 25 seconds. Note we see some hydrogen in in the spectrum, this disapears after a few seconds.

Target T1=30.0K, T2=31.9K.

Nozzle position x=-2.96, z=1.72 mm

YR09-Etarget pressure = 2.0e-10 mbar.

Cooler set value = 439 V, 15 mA. Read value = 439.81 V, 12.88 mA

All leakage currents look good

Beam position. Vertical =0.0mm , Horizontal=-1.5 mm

Beam intensity ~3e8 on bunched beam, 3e8 on coasting. Gleb has increased the intensity this morning.

Data rate ~ 403kB/s

Lowered slow comparator threshold to 0x24 (360 keV)

13:20 Run stopped

Wolfgang tuning next beam energy

All checks fine

Total stats: 7827,4085,1821

OFFLINE CHECK

I have check Run41 and applied the gain calibration from 2024 in addition to a tigher EyEx energy cut (600 keV from 3 MeV for the online script). We no longer see the larger hump to the side of the 3He peak in DSSD1. See final attachment for comparison.

Note no time cuts have been applied to this spectra.and a more rigourous gain calibration using the igher energy D+ runs will likely improve things further. 

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.

22:56

Run 20 started - beam on target

Beam energy is 1.5 MeV. Horizontal beam position = 7.0 mm, vertical beam position = 0.0 mm.

Target density ~ 1e11 at/cm2

Beam intensity at inj ~ 4e7

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 ~ 3minutes.

Pressure in YR09 E target ~ 4.5e-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

01:15

Target density has increased slighty: ~ 4e11 at/cm2 (update: this only lasted about 5 min)

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

Leakage current stable

3:10

Target density has decresed slightly but will come back (hopefully) ~7e10 at/cm2.

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

Leakage current stable

05:15

Target density has been somewhat unstable, between ~7E10 and ~3E12 at/cm2.

Merger OK, Tape server OK

ADC data item statistics looks as before. OK

FEE temperatures look OK

System checks OK

Leakage current stable

07:37

Run continues. Target density still fluctuating around 1E11 atoms/cm2.

Temperatures OK. Merger OK. Rates OK.

System wide checks as before.

Waveforms OK. See attachments.

Some screenshots from the online analysis. We do not see a peak at 1 MeV. We do however clearly see more D than H2+.

Stopping run to make some tests.

11:10

We have started a new run at the same energy as R53 (250 keV/u) due to an issue with the DAQ pc

Server and DAQ restarted

ASIC settings loaded 2025APR08. Only changes made are setting all FEEs to LEC (0x0) on channel 10, and setting the slow comparator thresholds to 0x14 (200 keV).

All beam settings are the same as the previous elog. Detectors remain stationary and in the fully out position.

All checks ok!

ADC data items statistics appear unchanged. See attachment.

Data rate ~ 800 kB/sec

12:40

All checks ok

The target is not super stable.

14:00

 Checks ok!  Target back to >3E12 1/cm2

15:00

 Checks ok! 

17:00

Full check, everything looks okay!, Areal density is in beetween 3-5E12. Rate in all the detectors look fine.

19:14

Full check, everything looks great. Average arial density around 5e12 atoms/cm2. For more details please look at the attached screenshots

20:20

Target density dropped to 8e10, We are waiting for 20 minutes before changing the nozzle positions!

20:41 : slowly increased to 2.2e11 but it is not increasing anymore

20:43 Changed the nozzle position X fromm -1000 to -1500

20:56, Target thickness recovered bsck to 5e12

21:25, Full check, everything runnig smoothly. There is nothing unexpected, for details, please have a look at the attached file

22:30 Full check, Stable target thickness of more than 5e12 atoms/cm2. everthig running fine:-) For more details, please look at the attached screenshots!

00:52

Temperatures OK

Rates OK

Leakage current stable

System wide checks OK

Merger OK

Beam is on

Target looks fine, 2E-10 mbar in YR09 Etarget

02:51

Temperatures OK

Rates OK

Leakage current stable

System wide checks OK

Merger OK

Beam is on

Target looks fine, 3E-10 mbar in YR09 Etarget

03:45

Temperatures OK

Rates OK

Leakage current stable

System wide checks OK

Merger OK

Beam is on

Target looks fine, 4E-10 mbar in YR09 Etarget

07:05

Temperatures OK

Rates OK

Leakage current stable

System wide checks OK

Merger OK

Beam is on

Target looks great!!! 1.1E13 this morning!!

08:05

All checks ok!

09:05

All checks ok! Target is perfect to make this Sunday amazing

10:00

All checks ok! We completed the data taking on this energy. Atatched the final stats.

08:45

Run 39 started.

D+ beam deuterium target. D+ beam energy is 1.0 MeV/u. (beam calc calculation is 1.0151 MeV/u)

Beam calc - Attachment 1

Target density is about 5e12 at/cm2

All four detectors positioned fully out and stationary.

Left potentiometer = 18.86 mm

Right potentiometer = 19.8 mm

Ring cycle time is 1 minute. Note we see some hydrogen in in the spectrum, this disapears after a few seconds.

Target T1=30.1K, T2=31.9K.

Nozzle position x=-2.96, z=1.72 mm

YR09-Etarget pressure = 2.55e-10 mbar.

Cooler set value = 575 V, 15 mA. Read value = 575.8 V, 12.9 mA

All leakage currents look good

Beam position. Vertical =0.0mm , Horizontal=-1.25 mm

Beam intensity ~1e8. We appear to lose intensity when reducing energy. It is still sufficient to for our purposes.

09.38

CRYRING vacuum and ambient temperature - attachments 2-3

09:58

All checks OK.

Target density is ~7e12 at/cm2

Data rate ~300kB/sec

All leakage currents look OK

After 1 hour we have 3671, 2515 and 1064 in each peak respectively. This is also logged on the google docs form in same tab as elog.

10:36

Temps OK

Data rate OK 326 kB/sec

Leakage currents stable

12:30

Temps ok - attach

Rates ok - attach

Merger ok - attach

14:20

Run stopped for energy change.

23:35

Temperature setpoint = 116 K

Detector position IN, potentiometer reads 34.89 mm

Rutherford rate fluctuates however is consistently aboe 100 counts peak height

Merger OK

Data rate = 1600 kb/sec

Leakage current = 3.23 uA

Temperatures OK

System checks OK - wr attached

         Base         Current     Difference
aida01 fault      0xab60 :      0xab8c :      44  
aida02 fault      0x88d3 :      0x88fe :      43  
aida03 fault      0x23aa :      0x23d6 :      44  
aida04 fault      0x15d7 :      0x1603 :      44  
aida05 fault      0x2f03 :      0x2f0f :      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

00:51

Temperature setpoint = 116 K

Detector position IN potentionmeter = 34.89mm

Rutherford rate fluctuates, consistently above 100 counts peak height

Merger OK

Data rate = 1600 kb/sec

Leakage current = 3.235 uA

Temperatures OK

System checks OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xab8c :      44  
aida02 fault      0x88d3 :      0x88fe :      43  
aida03 fault      0x23aa :      0x23d6 :      44  
aida04 fault      0x15d7 :      0x1603 :      44  
aida05 fault      0x2f03 :      0x2f0f :      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

Avg ring pressure = 4.4 E-10 mbar

01:18

Rutherford rate showed sustained drop to below 10 counts peak level. E4 was also consistently down, fluctuating in the low -9 mbar range compared to -8 mbar range previously.

Temperature increased to 125 K

01:39

Completed increase to 125k, drop to 95k and back to 116k. Rate has improved somewhat, however is still lower than before. Will monitor and see if any further change in temperature helps.

01:48

E4 pressures and rutherford rate remain low ~40 counts peak height. Decreasing temperature in 1k steps to see if any improvement.

02:05

Rates still low at decreased temperature. Setting to 140 K for 15-20 mins and then bringing back down.

02:36

Temperature brought back down, optimum temperature appears to be 118 K. E4 ~ 3E-9 mbar and rutherford rate is back around 100 counts peak heught.

03:15

The nozzle motor control at the target crashed, but operation has been restored.

Temperature setpoint = 116 K

Detector position IN potentionmeter = 34.89mm

Rutherford rate fluctuates, around 100 counts peak height

Merger OK

Data rate = 1356 kb/sec

Leakage current = 3.234 uA

Temperatures OK

System checks OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xab8c :      44  
aida02 fault      0x88d3 :      0x88fe :      43  
aida03 fault      0x23aa :      0x23d6 :      44  
aida04 fault      0x15d7 :      0x1603 :      44  
aida05 fault      0x2f03 :      0x2f0f :      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

Avg ring pressure = 4.4 E-10 mbar

04:20

Did another temperature cycle (118 K -> 125 K -> 95 K -> 116 K) trying to improve the pressures at the target and the detector count rate.

Rates are still mostly below 100 counts (Ex rate) and the pressures are still fluctuating by about an order of magnitude (E4: between 1e-9 and 1e-8 mbar).

Temperature setpoint = 116 k

Detector IN potentiometer = 34.89 mm

Rutherford rate is reduced from previous entries. Avergae peak height appears to be ~50 counts. Fluctuations in peak height and E4 pressure are quite high. Temperature has been cycled, nozzle position has been optimised and different temperatures have been trialled however density cannot be maintained at a decent level. 

Merger OK

Data rate ~ 1500 kb/sec

Leakage current = 3.2295 uA

Temperatures OK

System checks OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xab8c :      44  
aida02 fault      0x88d3 :      0x88fe :      43  
aida03 fault      0x23aa :      0x23d6 :      44  
aida04 fault      0x15d7 :      0x1603 :      44  
aida05 fault      0x2f03 :      0x2f0f :      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

Avg ring pressure = 4.4 E-10 mbar

Have been unable to achieve decent target density with temperature cycling so far. Will attempt to go up to 300 k and back down to around 115 k which proved successful in previous shifts.