15:15

Temperature setpoint = 113 K

Target density is OK for now. S1 vaies between 2E-8 and 3.5E-8 mbar. E4 between 1E-9 and 1E-8 mbar.

Detector motors functioning well. Moving between 23.1 mm and 67.43mm. Move in and move out counters the same. Correlation scalar 8 for detectors moving is seen on aida1

Rutherford rate peak varies between 10^3 peak height when fully in and ~10^2 when fully out. No peak from halo seen in rate.

Beam intensity ~ 1E8

Merger OK

Data rate ~ 1700 kb/sec

Run is Run 87 - started 10:34

Data spy restarted at 15:00 so only include Run87 data.

Leakage current = 3.205 uA

Fee Temperatures OK

System checks OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba3 :      67  
aida02 fault      0x88d3 :      0x8914 :      65  
aida03 fault      0x23aa :      0x23ed :      67  
aida04 fault      0x15d7 :      0x161a :      67  
aida05 fault      0x2f03 :      0x2f20 :      29  
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 = 5.5E-10 mbar

16:45

Temperature setpoint = 113 K

Target density is OK for now. S1 vaies between 2E-8 and 3E-8 mbar. E4 between 1E-9 and 1E-8 mbar.

Detector motors functioning well. Moving between 23.1 mm and 67.43mm. Move in and move out counters the same. Correlation scalar 8 for detectors moving is seen on aida1

Rutherford rate peak varies between 10^3 peak height when fully in and ~10^2 when fully out. No peak from halo seen in rate.

Beam intensity ~ 1E8

Merger OK

Data rate ~ 1300 kb/sec

Temperatures OK

Leakage current ~3.205 uA

System chacks OK - wr fail

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba3 :      67  
aida02 fault      0x88d3 :      0x8914 :      65  
aida03 fault      0x23aa :      0x23ed :      67  
aida04 fault      0x15d7 :      0x161a :      67  
aida05 fault      0x2f03 :      0x2f20 :      29  
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

Statistics similar to previous check.

18:21

Temperature setpoint = 113k

Target density OK S1 varies between 2E-8 and 2.5E-8 mbar, E4 between 1E-9 and 5E-9 mbar. (slightly lower than previous check)

Detectors moving well between 23.1mm and 67.43 mm, Move in and move out counters the same. Correlation scalar is on aida1

Rutherford peak varies between 10^3 and 10^2 depending on detector position. No halo peak in rate. Noise peak varies from ~100 peak height when fully in to ~400 peak height when fully out.

Beam intensity ~ 1E8

Merger OK

Data rate ~ 1800 kb/sec

Leakage current ~3.21 uA

Temperature OK
System checks  OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba3 :      67  
aida02 fault      0x88d3 :      0x8914 :      65  
aida03 fault      0x23aa :      0x23ed :      67  
aida04 fault      0x15d7 :      0x161a :      67  
aida05 fault      0x2f03 :      0x2f20 :      29  
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

19:20

Temperature setpoint = 113k

Target density OK S1 varies between 2E-8 and 3E-8 mbar, E4 between 1E-9 and 1E-8 mbar. (slightly higher than previous check)

Detectors moving well between 23.1mm and 67.43 mm, Move in and move out counters the same. Correlation scalar is on aida1

Rutherford peak varies between 10^3 and 10^2 depending on detector position. No halo peak in rate.

Beam intensity ~ 1E8

Merger OK

Data rate ~ 1800 kb/sec

Leakage current ~3.20 uA

Temperature OK
System checks  OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba4 :      68  
aida02 fault      0x88d3 :      0x8915 :      66  
aida03 fault      0x23aa :      0x23ee :      68  
aida04 fault      0x15d7 :      0x161b :      68  
aida05 fault      0x2f03 :      0x2f20 :      29  
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 = 4.3 E-10 mbar

Statistics similar to previous check.

20:25

Observed short burst of low energy noise on aida1, lasted <30s (attachment 8).

Temperature setpoint = 113 K

Target density OK S1 vaies between 2E-8 and 3E-8 mbar, E4 between 1E-9 and 1E-8 mbar.

Detector moving well between 23.1 mm and 67.43mm, move in and move out counters the same. Correlation scalar on aida1.

Rutherford peak varies between 10^3 and 10^2 depending on detector position, noise peak varies with detector position -> lower further in.

Beam intensity ~1E8

Merger OK

Data rate ~ 1900 Kb/sec

Leakage current = 3.208 uA

Temperatures OK

System checks - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba4 :      68  
aida02 fault      0x88d3 :      0x8915 :      66  
aida03 fault      0x23aa :      0x23ee :      68  
aida04 fault      0x15d7 :      0x161b :      68  
aida05 fault      0x2f03 :      0x2f20 :      29  
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 = 5.5 E-10 mbar. Ring pressure tends to oosciilate between ~4 and 5.5 E-10 mbar

21:21

Burst of noise not observed again

Temperature setpoint = 113 K

Target density OK S1 vaies between 2E-8 and 3E-8 mbar, E4 between 1E-9 and 1E-8 mbar.

Detector moving well between 23.1 mm and 67.43mm, move in and move out counters the same. Correlation scalar on aida1.

Rutherford peak varies between 10^3 and 10^2 depending on detector position, noise peak varies with detector position -> lower further in.

Beam intensity ~1E8

Merger OK

Data rate ~ 1900 Kb/sec

Leakage current = 3.206 uA

Temperatures OK

System checks - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba4 :      68  
aida02 fault      0x88d3 :      0x8915 :      66  
aida03 fault      0x23aa :      0x23ee :      68  
aida04 fault      0x15d7 :      0x161b :      68  
aida05 fault      0x2f03 :      0x2f20 :      29  
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 5.4E-10 mbar

22:16

Temperature setpoint = 113k

Not observed noise burst again

Target density OK, S1 between 2E-8 and 3E-8mbar, E4 between 1E-9 and 1E-8 mbar.

Detector moving well, potentionmer between 23.1 mm and 67.43 mm, move in/move out counters the same. Correlation scalar on aida1

Ruthrford peak varies between 10^3 and 10^2 peak height depending on detector position, noise rate also varies with position.

Beam intensity ~1E8

Merger OK

Data rate ~ 1200 kb/sec

Temperatures OK

System checks OK - wr fails

         Base         Current     Difference
aida01 fault      0xab60 :      0xaba4 :      68  
aida02 fault      0x88d3 :      0x8915 :      66  
aida03 fault      0x23aa :      0x23ee :      68  
aida04 fault      0x15d7 :      0x161b :      68  
aida05 fault      0x2f03 :      0x2f20 :      29  
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

Ring pressure oscillation is 30 minute cycle on all areas of the ring.

4 FEE holders installed on CARME. Mounting procedure devised due to limited working space to install.

Mounting procedure:
>Install FEE holder mounts (image 1) onto feedthrough flange

>Partially make up FEE holders on workbench. Only 3 cylindrical support rods, spring latches and one of the black adaptor card mounts should be attached to aid install. Bolts should be loose to aid install on CARME. 

>Mount FEE holder to flange

>Connect first adaptor card into D connector on feedthrough, then screw adaptor card to black mount. 

>Screw in second black adaptor card mount but do not tighten bolts. Connect second adaptor card to D connector and screw to black mount. 

>Attach remaining cylindrical supports and tighten all bolts.   

Bolts to install FEE holder mount onto flange (M4x25) are 2mm too long for the hole on the flange. Washer were initially used however this prevents adaptor cards being able to be secured onto thier black mounts. Bolts were shortend 2mm by davide to install. 5 shortend bolts remain in addition to thebag of unshortend M4x25 bolts. 

On the nn flange of the bottom detector (non bias pin D-connector) the feedthrough is damaged. Damage may be repairable, to prevent further damage an adaptor card was not plugged into this D-connector. (image 1)

A bias test was performed for the top detector once adaptor cards are installed. First test is the bias test performed prior to adaptor cards being installed, second test was performed after installation of adaptor cards.   

Installing FEEs on the outer side of the ring in the future may have some mechanical conflict with the gas target frame, see attached images. 

The ERNI connector is not central on the adaptor boards causing misallignment with the FEE. 

The adaptor board is 80mm long. The ERNI connector is 50mm long. The connector is 13mm from the 2x Lemo side and 17mm from the 3x Lemo side. This results in misallignment between the FEE and adaptor board. 

To correct for misallignment, 2mm will be skimmed from one of the rails on the FEE. 

Skimming the rail allows the FEE to now be inserted straight into the adaptor board connector. Attached image shows test FEE holder on the bench. FEE needs to be carefully inserted to make sure it is straight as it can now move around within the FEE holder with the 2mm skimmed off the rails. For CARME, where sight lines and space are limited, one person is required to hold and push in the FEE whilst another checks the positioning of the connectors is straight. 

All 8 FEEs have been installed in their holders.

The damaged feedthrough does not have the D-connector on the adaptor board inserted into the falnge but the FEE is connected to the adaptor board. 

FEE's were carefully installed, with one person inserting FEE and another making sure FEE was straight and on the correct pin positions. The spring lock on the bottom FEE's have been tightend and zip ties have been placed to make sure they are secured. 

Rack has been populated with cables from the rack to chamber laid out. Cables mostly go above the rack and hang off the large frame. This frame or the CARME frame takes most of the weight of the cables before they are plugged into the FEEs.   

Cables are numbered 1-8. Brown ethernet cables are numbered 1-4, green 5,6 and yellow 7,8. Numbers correspnd to Bottom FEE (1,2), Side bottom FEE (3,4), Side top FEE (5,6), Top FEE (7,8)

Water cooling has been connected to the FEE's. Flow meter installed to outlet manifold by way of two right angled pieces. No leaks observed rom any points in the coolant loop, loop will be bled using taps tomorrow. Water turned OFF overnight. 

FEE's powered up with the MAC addresses of each read. 1 is the very bottom FEE and 8 the very top. FEE's have also labelled with the MAC addresses.  

1. 0xd8 0x80 0x39 0x42 0x0d 0x0c  

2. d8:80:39:41:d8:2b

3. d8:80:39:41:d0:05

4. 0xd8 0x80 0x39 0x41 0xd7 0xc2  (Now AIDA 5 see elog 185)

5. 0xd8 0x80 0x39 0x41 0xb4 0x0b (Now AIDA 4 see elog 185)

6. d8:80:39:41:d8:20

7. 0xd8 0x80 0x39 0x41 0xb4 0x16

8 .0xd8 0x80 0x39 0x41 0xd7 0xcd  

MACB firmware has been updated by Nic

One ion pump showed the warning 'arcing' (see attached photo) and was subsequently turned OFF. Most likely cause is the cable was moved during installlation of the flow meter as the pump showed no error this morning. The pump was turned back ON, no error observed -> cable not damaged but sensitive to movement.   

Power, Ethernet and HDMI cables connected to FEEs. To prevent cables coming out of connectors, power and HDMI cables are zip tied to FEE cooling pipe (see attached image).

Correct FEE MAC addresses have been updated in /etc/dhcp/dhcpd.conf

Remote access to carme sever has been setup. Remote access instructions in elogs 176-179. 

New ASIC settings which reflect polarity of FEES produced 2022Jan27-16-43-00 

New Options file updated to point to new ASIC settings. 

/MIDAS/config/TclHttpd/carme-gsi@8015/startup.tcl updated for 8 FEEs 

/MIDAS/Linux/startup/NewMerger Updated line from "./master64 -i 16 -l 16 -p 11001  &" to "./master64 -i 8 -l 16 -p 11001  &"

Quick motors test performed. Motors accesible remotely (elog 179). Motors moving output (BNC 1 on motors box) connected to motors module (BNC 1). When not moving +12V is observed at BNC 2 on motors module. When moving 0V is observed on BNC 2.  

Grounding

Ground cables have been daisy chained together from FEE to FEE. Ground cables are screwed into a feee bolt hole on the FEE body using an M3 bolt. 

LEMO cables have been connected in a similar way between the grounds on the adaptor boards for each FEE. Short LEMO cables go between J6 on pairs of adaptor boards in the same FEE holder and long LEMO cables go between J7 on adaptor boards in different FEE holders. 

The LEMO grounds from the adaptor boards and the ground cables attached to the FEE bodies are then connected together and then connected to the CRYRING grounding cable. 

Pulser

Jan has kindly lent us a pulser. We send the pulser to an inverter giving us a +ve and -ve signal. 

The +ve signal goes into the pn FEEs (1,2,5,6)

The -ve signal goes into the nn FEEs (3,4,78)

LEMO cable connecting FEEs in the same holder using J3 on adaptor board. J4 is used for recieving the pulse signal, connecting FEEs in different holders or terminating the signal. 

Pulser walkthrough taken for motor position 23.1mm and motor position 67.43mm.

Points taken at 30,50,70,90,110,130,150,170,190,210,230 for 23.1mm position and 230,210,190,170,150,130,110 for 67.43mm position.

Motors moved to fully OUT position and pin put back in. Current positions before closing program 19.1mm and 19.57mm. 

Fee power OFF. Fee power module switched OFF and AC mains cable unplugged.  

Bias suppply OFF. NIM crate for bias module switched OFF. 

Water supply OFF

CARME ion gauge turned back ON

11:01

Run 35 started cooled beam on target

Detectors IN (left arm pot =36.5 mm, right arm pot = 70.49 mm)

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

Target density is 3.75e11 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 33.

Beam is in the ring for 8 seconds and total cycle time between injections is 12 seconds. Same as run 33

Beam injection looks stable. ~2e7 injected and no missed injections so far.

Merger OK, Tape server OK

Merger statistics zero'd

All histograms and statistics zero'd, monitoring code reset.

ADC data item statistics looks as before, very few counts until injection into the ring. OK

FEE temperatures look OK

System checks OK

Leakage current trending upwards, same as previous elog.

13:33

FEE temperatures OK - all FEEs at least 1.5C below vertex warning

ADC data items statistics OK

Merger and Tape server OK

Target density 3.8e11 at/cm2, ring pressure stable.

Ring injections look very stable

Leakage current now decreasing (attachment 1)

Monitoring code xy and energy histograms (attachment 2+3)

15:03

System wide checks ok. Merger ok. Temperatures ok.

Attatchment 4: Stats

Attatchment 5: Temperatures

Attatchments 6-9: Waveforms.

Attatchment 10: Leakage current

Attatchment 11: lowenergyEytotal plots

17:09

System wide check ok. Merger ok. Temperature ok.

Attachment 12: Stats

Attachment 13: Temperatures

Attachment 14-18: Waveforms (Layout 7: strange behaviour in aida01, went to ASIC Control and did "Check ASIC control" three times, which resolved the problem)

Attachment 19: Leakage current

Attachment 20: lowenergyEytotal plots

Gas pressure was going up a little bit: changed Y position of the nozzle from 1000 to 950.

17:55

The gas jet target pressure started to fall sharply at 17:34 and went down to zero within 2 minutes.

It came back while it we were changing the nozzle position but at 17:49 fell to zero again.

Currently waiting for Nikos to came and have look at it.

18:10

Target back in place and has a density of 4.04e11. Beam transformer looks similar to pre plummeting target density.

18.55 Check ASIC load FEE64 aida16 asic#3 HEC channels active

 Following check load merger rate decreased significantly.

19:14

Gas density remains stable around 4e11 after the incident at 17:34 and the beam transformer singal looks ok too. Gas pressure ok.

Merger: All aidas turn green but the merger has decreased significantly (too about 306 000 items/sec) as mentioned above.

System wide check ok. Temperature ok.

Attachment 21: Stats

Attachment 22: Temperatures

Attachment 23-26: Waveforms

Attachment 27: Leakage current

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.

Detectors out

Target nozzle out

Pressure in E1 had reached 2e-1 mbar and turbo was spinning down to 810 Hz. Pressure reduced and E1 has reduced to 8.2e-2 mbar. We may require a pressure increase when we want the target back?

Run changed and out into no storage mode so we do not write rubbish to disk.

11:34

Beam tuning in the ring in progress

Merger OK. Not writing to disk.

Temps OK. Rates OK.

Leakage current OK.

Motors out. Target out.

13:31

Checks OK. Beam tuning near completion.

Some data acquired during beam tuning attached.

23:00

Target Temperature setpoint 95 K

Current in the ring ~ 5e7 pps

Rutherford rate appears to fluctuate by 2 ordera of magnitude depending on target density. Rate currently ~10^2 counts per 20s. (attachmet 1) can vary to nothing (attachment 6). When consistently low will increase temperature

Effect of target density can be observed in beam current plots. (attachment 7). When rutherford rate is high, beam current tends to decrease over the shot. When the rate is low the current maintains a level throughout. 

Merger OK

Data rate ~ 800 kb/sec. Current run 78

Leakage current ~3.24 uA

Temperatures OK

System Checks OK - white rabbit fail attached

23:36

Rutherford rate consistently low. Maximum rate was just below 10^2 counts, only lasted for one beam shot then low count rates < 10^1 counts.

Setpoint increase to 125 K. 

Increase in pressure across the board in gasjet after increasing temperature which reduces fairly rapidly after 5 minutes. Current in E1 pump reduced from 2.7 A to 2.3 A at 125k. 

Rate at 125K attachment 8. Appears stable.

23:49

Setpoint decrease to 115 K,

23:56

Temperature now stable at 115K. Rate has increased to ~10^2 counts per 20 secs and appears stable (no large fluctuations). Will keep at this level to see if it can be maintained for significant time period.

00:20

Temperature setpoint 115 K

Rutherford rate appears fairly stable. Fluctuations from a max peak of 10^2 to a minimum of ~40 peak hieght. Fluctuates remain lower than at 95 K.

Temperatures OK

System checks OK - white rabbit attached.

Leakage current ~ 3.236 uA

Data rate ~1177 kb/sec

Merger OK

Ring vacuum levels appear to have stablised from previous large fluctuations. Avg ring pressure decreased to 3.8E-10 mbar from 7.5E-10 mbar at start of the shift. (attachment 9)

00:51

Rutherford rate still stable. Fluctuations have reduced slightly. Min peak height now ~60 counts, max peak ~10^2 counts. (attachment 10)

Ring vacuum avg = 3.2 E-10 mbar.

E1 pump current ~ 2.4 A

01:23

Temperature setpoint = 115 k

Rutherford rates still appears stable. Max peak ~10^2 counts, min peak ~50 counts per 20 seconds. Greater fluctuations in YR07 plot however do not appear too high, peaks coincide with sustained higher rutherford counts  ~10^2 counts most of the time.

Ring Avg pressure 3.1 E-10 mbar

Ring current ~ 6E7

Temperatures OK

System wide checks OK - wr fails is attached

Merger OK

Data rate ~ 1400 kb/sec

Leakage current ~ 3.23 uA

02:15

Density remains stable at 155 K

Temperature setpoint decreased by 1K. Aim to get to 110 K to see if higher stable density can be achieved. 

Spike in YR pressures observed as temperature was decreased, still look OK. Will leave to settle for a while. T = 114K.

Rates remain stable at ~ 10^2 peak height level.  

02:33

Pressures stabilised

Setpoint to 113 K. 

02:40

No pressure spike observed after decrease

Setpoint to 112 K

02:46

No pressure spike observed after decrease

Setpoint to 111 K

Pressure spike observed  in YR pressures (smaller than last) - give time to recover. 

03:00

Setpoint to 110 K

No pressure spike observed. 

Rutherford rate peak height remains stable at ~ 10^2 . Perhaps peak height minimum is consistently higher than before, difficult to say. 

Attachment 1 - 115 K

Attachment 2 - spike 1

Attachment 3 - spike 2

All pressure stable now 

03:21

Temperature setpoint 110 K

Rutherford rate stable. Min peak height ~ 10^2 counts, max ~ 3*10^2 counts.

Temperatures OK

System checks OK - wr attached

Merger OK

Data rate ~ 1500 kb/sec

Leakage current ~ 3.228 uA

Ring vacuum stable, Avg = 3.1E-10 mbar

E1 pump current = 2.5 A

04:24

Temperature setpoint 110 K

Rates appeared stable throughout the hour ~10^2 peak height. Last 5 minutes rutherford peak height appears reduced, cycling from 10^1 to 10^2. If this continues with sustained low density, temperature will be cycled to 125 K and back down.

Merger OK

Data rate = 1300 kb/sec

Ring avg pressure = 3.1E-10 mbar

Temperatures OK

System checks OK - wr fail attached

Leakage current ~ 3.228 uA

04:33

Rutherford rate appears to have increased and stabilised again around 10^2 peak height.

05:20

Temperature setpoint = 110 k

Rates are stable however are slightly lower than previous. Min peak height ~40 counts, max ~ 10^2.

Merger OK

Data rate ~ 1200 kb/sec

Ring avg pressure ~ 2.9E-10 mbar

Temperatures OK

System checks OK - wr fail attached

Leakage current ~ 3.222 uA