ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:

Wed Nov 30 21:26:52 2016

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00.51 BigRIPS data file 1112.

01.50 BigRIPS data file 1113.

02.55 BigRIPS data file 1114.

03.56 BigRIPS data file 1115.

04.58 BigRIPS data file 1116.

05.57 BigRIPS data file 1117.

06.26 Stopped run R41 @R41_126 ahead of LN2 fill.
      Bias and leakage currents ok (attachments 1+2).
      BRIKEN files 161130_1942_183.dlt to 161130_1942_197.dlt

06.54 BigRIPS data file 1118.

(DK arrives)

07.44 R42 started following LN2 fill. (BRIKEN computer had some problems, delaying restart.)
      No synchronisation with BRIKEN during R42_0.
      Re-sync pulse issued and synchronisation obtained 1.2GB into R42_0.

7.55 Big RIPS run 1119

(CG departs)

8.55 Big RIPS run 1120: corresponds roughly to AIDA R42_15

circa 9.00: Offline analysis of present condition: https://elog.ph.ed.ac.uk/AIDA/509

09.55 BigRIPS data file 1121

10.00 Beam is stopped for changing stripper foil.  Nearly at the end of R42_27.
     Previously there was 8. + 0.2 mm of Al on the upstream side of the PE wall
     Pb bricks between MUSIC 1 and MUSIC 2 had the width reduced from 7.5 cm by ~1 cm compression on the beam
right side
        So the total gap in this location should be 
     Now we have 5 mm Al between MUSIC 1 and MUSIC 2.  
     3. mm and 0.2 mm Al is on the upstream side of PE wall.
     (Total thickness of Al degraders is not changed, only the distribution of the material around F11.)
     (Variable degraders are not moved: 0.5 mm W + 0.3 mm W + 1.0 mm W (+3 mm Al backing))

10.08 BigRIPS data file 1122
10.09 Beam returns: 1.3 GB into R42_29

circa 12:00: offline analysis of present condition: https://elog.ph.ed.ac.uk/AIDA/510

11.09 BigRIPS data file 1123

(TD arrives, DK to lunch)

12.09 BigRIPS data file 1124

12.42 DAQ stops (RIBF03R1/R42_68) - overloaded /data10 filesystem sshd/rsync + rm 
      Unable to soft reset, power cycle FEE64s

13.11 DAQ starts (RIBF03R1/R43)
      ASIC settings 2016Nov29-21.38.02

13.18 BRIKEN issues multiple syncs - attempting to reset correlation scalers

13.21 BigRIPS data file 1125

13.25 Correlation scalers now reset, SyncCheck OK 
      AIDA data file R43_2
      BRIKEN data file 205
      BigRIPS 1125 (circa 13.21)
      15 cps at BigRIPS scaler F11 plastic; network camera for ZDS scaler has 55 cps

(DK return, TD to lunch and PAC)

15.26 BigRIPS setting changes from 40Mg setting to unreacted 41Al setting.
      About half way in AIDA R43_27
      BigRIPS #1127
      F11 plastic at BigRIPS scaler is about 30 cps (doubled from before)
      Brho settings:
        D6 7.3989 Tm
        D7 6.2253 Tm
        D8 6.2405 Tm

16.25 Operator calls.  The beam is stopped.  They don't specify for how long and we don't know the exact
technical reason without native Japanese speaker
      Phone rang in the beginning near AIDA R43_41

16.33 They put back the disable access radiation control...beam returns soon?

16.43 R43_47 run in AIDA, beam comes back.
      F11 scint scaler of BigRIPS shows around 30 cps as before.  (network camera scaler from ZDS shows about 80
cps)
      BigRIPS data file 1128

16.58 Naive estimation of the energy loss difference of 40Mg and 41Al from different optics settings
      Use D8 Brho of 6.3208 Tm of R21_0
         40Mg energy after 8mm Al: 125 MeV/u
         41Al "       "     "   ": 140 MeV/u
      Use D8 Brho of 6.2405 Tm as above for the present settings
         40Mg energy after 7 mm Al: 125 MeV/u
         41Al energy after 6.5 mm Al: 142 MeV/u
      So, neglecting other stopping materials, the difference between implantation depths could be about 1 or 2
SSD layers towards the front of AIDA.

17.08 R43_53 removed variable degrader #1 (0.5 mm W [+1 mm Al])
      Variable degrader setting is now #2 + #3: 0.3 mm W + 1.0 mm W [+2 mm Al]

17.14 SyncCheck OK
      BRIKEN data file 210
      AIDA data file R43_55

17.28 DSSSD bias & leakage currents OK - see attachments 3 & 4
      FEE64 temperatures OK - see attachment 5
      Visual scalers - see attachment 6
      good events statistics - see attachment 7
      System wide checks OK *except* nnaida13 fails ADC calibration and variable number of nnaida5, 7, 8, 15 & 16
fail clock status - bit 2 always set

17.49 BigRIPS data file 1129
      Centre ZDS @ 40Mg
      Change degrader to (8mm Al) fixed + (0.3mm W/1mm Al + 0.5mm W/1mm Al, 1mm W/1mm Al) variable

17.53 SyncCheck OK
      AIDA data file R43_64
      BRIKEN data file 211

18.24 DAQ stops OK (RINF03R1/R43_71) 
      Ready for LN2 refill sequence

18.56 BigRIPS data file 1130

19.32 DAQ starts (RIBF03R1/R44)

19.35 SyncCheck OK
      BRIKEN data file 213
      AIDA data file R44_1
      ASIC settings 2016Nov29-21.38.02
      Degrader (8mm Al) fixed + (0.3mm W/1mm Al + 0.5mm W/1mm Al + 1mm W/1mm Al) variable

19.57 BigRIPS data file 1131

20.54 beam off for stripper foil change

21.04 1.8.W spectra -see attachments 8 & 9
      good events stats - see attachment 10
      Varying levels of 100kHz period extrinsic noise for FEE64s nnaida17, 18, 19 & 23

21.06 Back back
      SyncCheck OK
      BigRIPS data file 1132
      AIDA data file R44_31
      BRIKEN data file 214

21.55 SyncCheck OK

22.05 BigRIPS data file 1133

22.15 System-wide checks OK *except* nnaida13 fails ADC calibration and variable # of nnaida5, 7, 8, 15 & 16 fail
clock status - status bit 2 always set

23.04 BigRIPS data file 1134

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