14.00 CARME vacuum c. 1.8e-10 mbar - see attachment 1

open water inlet/outlet taps

NIM bin (MACBs, Ortec 480 Pulser, CAEN N1419ET) switched ON

USB-controlled ac mains relay switched ON - water & interlock LEDs active

Require VETAR2 (previous returned to Nik Kurz) and network switch (currently with AIDA@DESPEC)

Turbo pump ON - normal operation

Ion pumps ON - normal operation

16.30 ML informs us that ambient temperature of CRYRING cave has been increased from c. 16 deg C to c. 21 deg C and that this is likely the cause of the change in vacuum 
pressure in YR09 and the rest of the storage ring.

obtained VETAR2 and crate 

anydesk restarted

09.45 Found CARME electrical power off

      Reset power switch of distribution box to on
      Reset fuse of 19" rack extender board

      One of the SIP power modules may be faulty - others switch on OK


14.00 Checked coolant water flow OK

      Transferred Netgear 24 port Gbit switch from AIDA (S4) to CARME (YR09)

      Re-connected FEE64 RJ45 network cables
      Re-connected nnrpi1 RJ45 network cable
      Re-connected RJ45 network cable (yellow) to bottom left connector of YR09 patch panel 
      
      @CRYRING user control rooms

      Connected RJ45 netwwork cable (yellow) from bottom left connector of patch panel (labelled "1-2->YR10" and "3-4->YR10") to CARME server carme-gsi p4p1 port


Retarted HttpdTcl servers on nnrpi1 and carme-gsi.

Normal 5x FEE64 power up

All system wide checks OK

FEE64 temperatures OK - attachment 1

ASIC settings 
 slow comparator 0x64

Pulser running through aida01-05
Detectors not biased -> lot of noise aida01-04

AIDA stats - attachments 3 & 4

aida05 pulser width ~150 channels FWHM, normal settings, shaping time 8us - attachment 4

See attachments 2-4

Tried changing ADC control register to 0xf in local controls tab -> stops waveform producing data -> no effect on pulser width (slight increase to 160 chn)
fast comparator blanked off (enable disable mask in discriminator control) -> no effect on pulser width
aida05 was ungrounded -> grounded aida05 to the same ground as aida01-04 -> pulser width reduced to 46 chns
Set ADC control register back to 0x0 -> waveforms back -> pulser width reduced to 24 chns
Changed shaping time from 8ms to 1ms -> pulser width increased to 67 chns -> changed back to 8ms shaping time -> returns to 24 chn width
Changed shaping time from 8ms to 2ms -> pulser width increased to 52 chns
Changed shaping time from 2ms to 4ms -> pulser width decreased to 33 chns

10.07 DSSSD bias -100V leakage current -8.65uA

Waveforms and discriminators off, still on clean power supply

stats are ~10k across all fees

aida03 ~ 220
aida04 ~ 205
aida01 ~ 378
aida02 ~ 259
aida05 ~ 40

Grounding removed from all fees except nn bias fee aida04 and aida05. Grounding goes into both adaptor board and fee body

aida01 - no identifiable peak
aida02 - no identifiable peak
aida05 - double peak separated by 70 chn
aida04 - 400 shouldering
aida03 - no identifiable peak

Grounding removed from all fees except nn and pn bias fees aida04, aida01 and aida05. Grounding goes into both adaptor board and fee body

aida01 - 405
aida02 - no identifiable peak
aida05 - double peak
aida04 - 228
aida03 - 417

Grounding removed from all fees except pn bias fee aida01 and aida05. Grounding goes into both adaptor board and fee body

aida01 - 383
aida02 - no identifiable peak
aida05 - 64
aida04 - no identifiable peak
aida03 - no identifiable peak

Grounding on all fees. Grounding goes into adaptor board only

aida01 - no identifiable peak
aida02 - no identifiable peak
aida05 - 63  (wasn't changed)
aida04 - 700
aida03 - 700

Back to previous grounding on all fees

aida01 - 331
aida02 - 226
aida05 - 37
aida04 - 207
aida03 - 214

power cycle

aida01 - 326
aida02 - 238
aida05 - 46
aida04 - 212
aida03 - 195

Waveforms and discriminator back on

Removed test inputs and terminators from all fees, except aida03 (unable to reach) however the lemo is not touching the chamber
See attached waveforms compared to previous elog 32,33

Inserted test input to aida05 only directly from pulser. Width ~ 28

Inserted test input to aida01 only directly from pulser. Width ~ 329

Waveforms and discriminator off -> no impact on aida01 pulser width

Waveforms and discriminator back on

Connected a grounding cable from one of the water cooling pipes to cryring ground

aida01 ~ 205
aida05 ~ 23
aida02 ~ 105
aida03 ~ 71
aida04 ~ 148
Fees with bias attached to them aida01 (+ve) and aida04 (-ve) both show larger widths than there polarity counterpart
waveform screencap 34,35

Fee probe
7.46V left most bar
-6.26V 2nd bar
5.26V 3rd bar
5.26V 4th bar
5.25V 5th bar

Power supply probe
Top -6.05
2nd -6.05
3rd -6.05
4th +6.49
5th -7.78

new Ortec 448 pulser swapped in
aida04 ~ 166
aida05 ~ 21

Attachment 7-11 oscilloscope picture when probing fee relay power supply. Power ON fees connected. Top is attachment 7, bottom (5th) is attachment 11.  
Attachment 12-16 old pulser 
Attachment 17-18 new pulser
Attachment 19-23 oscilloscope picture when probing fee relay power supply. Power OFF fees connected. Top is attachment 19, bottom (5th) is attachment 23.
Attachment 24-28 oscilloscope picture when probing fee relay power supply. Power ON, fees disconnected. Top is attachment 24, bottom (5th) is attachment 28.
Attachment 29,30 probe-scope setup    

07.51 DAQ continues files 22Feb/R97

      ASIC settings 2022Jan31-11-52-00
       slow comparator 0x64

      EG&G Ortec 448 Pulser OFF

      All system wide checks OK

Attachment 1 - ADC data item stats

Attachment 2 - FEE64 temps OK

Attachments 3 & 4, 8 & 9 - per FEE64 1.8.W spectra 20us FSR and 200us FSR

Attachments 5 & 6 - per FEE64 1.8.L spectra

Attachment 7 - per FEE64 stat spectra

Leakage current remains 8.36 uA, 100V. 

Bias power OFF, SIP ion pump power back ON. NIM crate powered off. Motors pi and nnrpi1 still on for remote access. 
Compressed air off, water off. Fee relay power off and power cable disconnected. Motors box off. Safety pin for motors reinserted. 

Checked cable harnesses at cryring. 2 good short sections found and left with boxes in cryring. 2 damaged long sections (bad pin and broken ceramic) taken to repair in 
Edinburgh.

Test + and test - daisy chain cabling extended from DSSSD #1 to #2 to DSSSD #1 to DSSSD #4
 terminated by 50 Ohm at end of daisy chain

Grounding cabling extended from DSSSD #1 ( only ) to DSSSD #1 to DSSSD #4
 grounding cables daisy-chained between 4x adaptor PCBs of each DSSSD - no inter-DSSSD grounding cables

DSSSD#1 bias cable SHV-Lemo 00.250 ( to p+n bias adaptor PCB )
DSSSD#2 - DSSSD #4 bias cables SHV - 2x Lemo 00.250 ( to p+n/n+n bias adaptor PCBs )

LK1 fitted for DSSSD #1 & #2 n+n Ohmic side bias adaptor PCBs
LK2 not fitted on any adaptor PCBs? to be checked

CAEN N1419ET internal jumper fitted ( non-floating outputs )? to be checked

16.54 DSSSD bias OK - see attachment 1

      FEE64 temperatures - attachment 2
       aida06 ASIC temp low

      System wide checks and WR - attachments 3-6
       global clock status aid04 0x6, aida06 0x4
       multiple FPGA timestamp and WR decoder errors for MACBs 4 and 5 ( of 5 )

       WR timestamps OK for aida01-aida08 ( w/ MACB firmware version 04/20 )

     ADC data item stats - attachment 7
      all rates consistent with 50Hz pulser *except* 
       aida11 global clock fail
       aida07 no boot
       aida16 no power
       aida06 ? 
       aida15 faulty asic #2

     per FEE64 Rate spectra - attachment 8

     per p+n and n+n FEE64 1.8.L spectra - attachments 9-12
      Pulser peak width p+n side 52 ch FWHM ( aida12 ), n+n side 70 ch FWHM ( aida14 )

     per p+n and n+n 1.8.W spectra - 20us FSR - attachments 13-16

14.30 


       per FEE64 1.8.L spectra
        aida11 pulser peak width 52 ch FWHM



14.45 EG&G Ortec 448 Pulser OFF

      all stats & histograms zero'd
 
      alpha background


22.00 DSSSD bias and leakage current OK - attachment 10

      FEE64 temperatures OK - attachment 11

      ADC data item stats - attachment 12

      per FEE64 Stat spectra - attachment 13
       Comparison of attachment 9 (per FEE64 Rate spectra with pulser) indicates significant issues (downstream of adaptor PCB) for DSSSD #1
       Possible issues asics #3 aida01 and possible adaptor PCB misalignment aida05

Motor position ok

Data rate: 1030kbytes/s

T ok

System wide check ok

plots uploaded

22.00

Carsten Brandau stopping e-target experiment Unattended beam overnight. No operators watching.

10^5 (nominal) 20Ne7+ at 380keV/u beam available

Carsten reports beam is unstable, often disappearing, and in bunched mode.

4x MSL type TTT14 DSSSDs not moving, locked in out position

Starting CARME MIDAS DAQ ASIC settings 2024Apr24-14.14.03

slow comparator 0x64 E

G&G Ortec 448 Pulser OFF

DSSSD bias & leakage currents - attachment 1

FEE64 temperatures OK - attachment 2

All system wide checks OK, WR timestamps OK - attachment 3

ADC data item stats - attachment 4

Rates dominated by two hot channels aida15 per FEE64 Stat spectra - attachment 5

per FEE64 1.8.L spectra - attachments 6-7 no obvious beam energy peak, continuum of energies from below beam energy to threshold

per FEE64 1.8.W spectra - attachments 8-9

22.55 Start data file APR24/R5 Merger, TapeServer etc - attachments 10-12

270k data items/s

23:29 Activated CARMESort script. See attachments 13-15.

No obvious beam or signal of any kind. Temperatures OK.

00:13 DAQ continues OK. System-wide check OK. Temps OK. Still no clear sign of beam.

01:03 Daq continues OK. System wide checks OK, Temps OK.

Only low energies observed in the energy spectrum. Looks a bit like the low energy noise observed in our previous runs with no/very few counts above what would be beam energy (~7.6 MeV)

Note the xy plots are not all orientated correctly (strips are correct in the sort code but root axis need to be flipped - I can;t remember how atm). The part of the plots with counts are those closest to the beam. 

02:00 DAQ continues OK. System wide checks OK. Temps OK.

Spectra still looks the same. I have noticed the right hand side rate is higher than the left. EyEx cut spectrum also looks like much more counts outside of the cut.

03:40

DAQ continues. All checks and temps OK.

I can now see a small peak at 5 MeV in the bottom left dssd. This dssd also has the least number of counts in the low energy continuum.

I have logged back into grafana on x2go to get the number ions in the ring. Attachment 17

04:23 (05:23 EU)

DAQ stopped, merger stopped, tape server stopped. Bias OFF. FEEs turned OFF. Screen shots taken of the monitoring code plots - not yet uploaded.

Windows and servers remain up in case we want to do some more tests in the near future.

Attachment 18 shows beam intensity for total run time from Grafana

ML reports that baking of the upstream section (gas jet interaction chamber plus e-target) has commenced - initially to 50 deg C to check thermocouples. If OK baking 
temperature will be ramped slowly (which I think means c. 10 deg C per h) to limits established for specific components by the e-target.

Ragan and Oemer are currently threading a 10m heating tape helically around the CARME chamber.

16.20 ML reports baking of upstream section is proceeding OK - currently ramping to 100 deg C at 10 deg C / h.

16.25 RSS reports that he completed the install of the thermocouples this morning and will update the Elog with specific locations of each thermocuple and TC08 channel 
later today.

16:30 All CARME thermocouples <20 C. No temperature changes. Monitor.x left under screen. Please summon with screen -x and dismiss with CTRL+a d

17:40 One CARME thermocouple at 40C (CARME front)

Attachments 1-3 - 2 of 4 SAES D2000 installed at same ports used for STFC DL XHV tests

Attachments 1 & 2 - 2x SAES D-2000 re-fitted to side ports
                    all 4x SAES D-2000 now re-fitted to chamber

Will now fit 1x turbo and blank (currently) unused turbo port.

Attachments 3 & 4 - centre 2x78 pin micro-D feedthrough has some pins slightly bent - can probably be safely bent back into position 

ALWAYS check 78-pin feedthroughs for bent/broken pins before fitting connectors/cabling

Attachment 5 - currently unused turbo port

Attachments 6 & 7 - turbo port from above and side

Attachment 8 - turbo + NW16/NW25 adaptor + NW25 s/s hose + scroll pump + turbo controller + CMS52 gauge controller

Note we currently do not have a vent valve or backing line vacuum gauge (both functions provided by leak detector at STFC DL).

Attachment 1 - IE414/514 feedthrough wiring diagram

Attachments 2 & 3 - IE514 feedthrough connected (cf https://elog.ph.ed.ac.uk/CARME/19 )

14:00 scroll pump start
14:30 turbo pump start
15:16 1.00e-5mbar
16:01 - attachments 4-8 basic vacuum test setup
        turbo @ 0.74A

              Pirani  IE514
              mbar    mbar

12/8/21 14:02 85
12/8/21 14:04 4.8
12/8/21 14:06 0.95
12/8/21 14:08 0.46
12/8/21 14:10 0.30
12/8/21 14:12 0.22
12/8/21 14:16 0.18
12/8/21 14:18 0.15
12/8/21 14:20 0.12
12/8/21 14:22 0.11
12/8/21 14:24 0.10
12/8/21 14:26 0.090
12/8/21 14:28 0.080
12/8/21 14:30 0.075
12/8/21 14:32 0.27
12/8/21 14:34 0.14
12/8/21 14:36 0.10
12/8/21 14:37:20    7.00e-5 
12/8/21 14:38 0.085 5.80e-5
12/8/21 14:40 0.080 4.61e-5
12/8/21 14:42 0.075 3.73e-5
12/8/21 14:44 0.075 3.14e-5
12/8/21 14:46 0.070 2.70e-5 
12/8/21 14:48 0.065 2.42e-5
12/8/21 14:50 0.065 2.16e-5
12/8/21 14:52 0.065 1.97e-5
12/8/21 14:54 0.060 1.81e-5
12/8/21 14:56 0.060 1.70e-5
12/8/21 14:58 0.060 1.57e-5
12/8/21 15:00 0.060 1.47e-5
12/8/21 15:02 0.055 1.39e-5
12/8/21 15:04 0.055 1.31e-5
12/8/21 15:06 0.050 1.26e-5
12/8/21 15:08 0.050 1.20e-5
12/8/21 15:10 0.050 1.14e-5
12/8/21 15:12 0.048 1.09e-5
12/8/21 15:14 0.046 1.04e-5
12/8/21 15:16 0.046 1.00e-5
12/8/21 15:18 0.044 9.65e-6
12/8/21 15:20 0.044 9.31e-6
12/8/21 16:00 0.032 5.28e-6

--------------------------------

13/8/21 08:00 0.0075 3.53e-7

Attachment 1 - what is function of the 4x c/s holes indicated?


DSSSD install sequence

1 add 136 - 2x78 way cable harnesses to DSSSD mount via strain relief

2 add DSSSD to mount

3 connect 136 D connector

4 install in CARME chamber 

5 connect 2x78 D connectors and strain relief to 2x78 way D connector 
feedthroughs 

Attachment 2- pins of one of the four feedthroughs were damaged. Needs to be replaced.

Looking downstream the RHS motor assembly has  loose green/yellow (gnd?) see attachment 1

Install blank base plate to trial install in downstream CARME chamber. The rod is just through all of the mounting holes - see attachments 2 & 3

The rod, plate and block are close fitting.

The current position of the TC feedthrough is incompatible wit detector movement- the TC feedthrough should be moved.

Detector baseplate with 1x DSSSD installed - attachments 4 - 6, Cabling length looks OK. 

Should move NEG power and TCs to top & bottom DN40 flanges to avoid conflicts with DSSSDs and cabling.

13.50 Cryostat set point 120K

13.49 Temperatures OK - attachment 1

13:51 System wide checks OK except WR decoder status

		 Base 		Current 	Difference
aida01 fault 	 0xab60 : 	 0xab86 : 	 38  
aida02 fault 	 0x88d3 : 	 0x88f8 : 	 37  
aida03 fault 	 0x23aa : 	 0x23d0 : 	 38  
aida04 fault 	 0x15d7 : 	 0x15fd : 	 38  
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

13.56 set point 95K

      stat, 1.8.L & 1.8.W spectra - attachments 2-6

09.50 CARME IE514 5.1e-11 mbar ( ambient temperature 16 deg C )

10.24 DSSD bias OK - attachment 1

10.40 MACB configuration

      1              2      3      4      5

mode  0x3            0x3    0x3    0x3    0x3

      from VETAR2    from 1 from 1 from 1 from 1
      to 2           aida01 aida05 aida09 aida13
      to 3           :      :      :      :
      to 4           :      :      :      :
      to 5           aida04 aida08 aida12 aida16

WR emulator cables connected to MACB #1 rear panel

DAQ reset and DAQ setup between each test below - the FEE64s were NOT power cycled between tests


      Per https://elog.ph.ed.ac.uk/CARME/478 test WR

      connecting/disconnecting HDMI cable from VETAR2 to MACB level 0 input was tested 20.1.24 per https://elog.ph.ed.ac.uk/CARME/477

      With VETAR2 abd all MACB mode sttings 0x3 observe same WR issues as previously

      Noted clock & sync cables from WR emulator were swapped
      ( pay attention to SMA cables cf. Zybo board *not* NIM module as shown in https://elog.ph.ed.ac.uk/DESPEC/517 )

      Change MACB level 0 mode from 0x3 to 0xd - all other MACBs mode 0x3
      HDMI cabkle from VETAR2 to MACB level 0 input disconnected

      System wide checks - global clocks all fail - see attachments 2-5


11.14 Reduce MAC config to MACB level 0 plus one MACB connected to FEE64s aida01-aida4
      All MACB modes 0x3

      System wide checks aida01-aida04 OK. Same problem observed with WR timestamp for aida01-aida04

      See attachments 6-9

11.22 Reduce MAC config to one MACB connected to FEE64s aida01-aida4
      MACB mode 0x3

      System wide checks aida01-aida04 OK. Same problem observed with WR timestamp for aida01-aida04

      See attachments 10-13

11.26 One MACB config using MACB 2 of 5 in NIM bin connected to FEE64s aida01-aida4
      MACB mode 0x3

      System wide checks aida01-aida04 OK. Same problem observed with WR timestamp for aida01-aida04

      See attachments 14-17

11.36 Connect VETAR2 output directly to aida09

      System wide checks for aida09 OK.Valid WR timestamp appears to be generated.

      See attachments 18-20

      Check NIM bin with MACBs etc
        +/-6V, 12V and 24V lines OK

11.42 Connect VETAR2 to MACB 1 of 5 ( mode 0x3 )
      Connect aida09 to MACB 1 of 5
      Global clock OK. WR decoder status error 0xd reported for aida09. Valid WR timestamp for aida09.

      See attachments 21-24

11.53 Connect VETAR2 to MACB 1 of 5 ( mode 0x3 )
      Connect aida09-aida12 to MACB 1 of 5
      Global clock OK. WR decoder status error 0xd reported for aida09-aida12. WR timestamps for aida09-aida12 very different - aida10 might be correct timestamp?

      See attachments 25-28

11.53 Connect VETAR2 to MACB 2 of 5 ( mode 0x3 )
      Connect aida09-aida12 to MACB 2 of 5
      Global clock OK. WR decoder status error 0xd reported for aida09-aida12. WR timestamps for aida09-aida12 very different - aida10 & 11 approx correct but 11 has 
lower timestamp than 10 so probably not quite right

      See attachments 29-32


15.00 Per https://elog.ph.ed.ac.uk/CARME/478 systematically test 1x MACB configurations to find 'working' MACBs

      Identify 3x MACB modules which produce sensible WR timestamps - all labelled ' firmware version 04/20 '.
      The other 5x MACBs are either unlabelled or labelled unknown.

      MACB configuration now uses 04/20 MACBs for MACBs 1-3 and unlabelled 2xMACBs fpr MACBs 4-5
      aida01-aida08 should produce WR timestamps OK

      Will attempt to update firmwre of 5x MACBs tomorrow pm with NH

Assorted screenshots of the CARME, CRYRING and gas jet target control systems in operation

Attachment 1 - detector motion controls

Attachment 2 - gas jet target pressures (blue proxy for target density, red proxy for gas load to CRYRING)

Attachment 3 - Schottky probe monitor of beam

Attachment 4 - CRYRING controls monitor

Attachment 5 - CRYRING vacuum pressures

Attachment 6 - CRYRING beam position and profile monitor 

Assuming DSSSD is 1000um thick we can expect to observe protons for E_lab=11MeV as follows

14N(d,p)15N(gs)   E_p=5.4MeV
14N(d,p)15N(5.3)  E_p=8.0MeV

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

Test