AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
DESPEC
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Sat Mar 29 11:26:38 2025
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> 15:30 > TD found the merger was running at ~43 Mb/s > The odd-numbered FEE64s all had significant (>200k) disk rates > ALL LEC/MEC fast discriminators and increased slow comparator from 0xa to 0x14 > Merger rate dropped to a more nominal value like 2.3 Mb/s > Settings not saved > > 40Ar beam 300 MeV/u expected, but SIS problem at the moment. > > 23:00 > Leak currents are stable as previously (20-21 Nov) and entered to Google spreadsheet > S4 vault is closed. > Presently AIDA is running without tape storage > System wide checks: > Master clock / aida01 sync reports error as expected; > All white rabbit decoders fail, but they are just off by 1 bit (no problem) > Everything else okay. > Stats look okay, but keep in mind above discriminator threshold -- see attachment 1 > Temperatures fine -- see attachment 2 > MBS looks okay -- we see a possible hint for the 1 bit difference with an "unexpected data word" -- see attachment 3 > Data rate is 1.7 Mb/s, merger okay -- see attachment 4 > > 23:30 > Now we wait for the beam > > 00:05 > Attachments 5-11: results of system wide checks after collecting sync errors and WR errors from baseline - all ok > > 00:25 > Histograms zeroed at 00:25. > > 00:35 > > 1.8.L pulser peak widths > > FEE64 width(ch) > 1 92 > 2 131 > 3 75 > 4 97 > 5 89 > 6 117 > 7 90 > 8 87 > 9 223 > 10 58 > 11 112 > 12 126 > > no peak observed on aida09 > > For comparison, pulser peaks measured on 13/11/19: > > pulser peak widths: > FEE width (ch) > > aida01 - 130 > > aida02 - 168 > > aida03 - 83 > > aida04 - 83 > > aida05 - 200 > > aida06 - 148 > > aida07 - 250 > > aida08 - 81 > > aida09 - 134 > > aida10 - 190 > > aida11 - 333 > > aida12 - 149 > > 2:00 > 40Ar beam tuning is finished. Intensity at S4 is about 3 kHz per spill. 1 spill per / 10 seconds > MBS system cannot be used for online merging tonight, because NeuLAND group left their connection open > We can merge offline using the White Rabbit timestamps > Remove the beam blocking steel flange from in front of AIDA et al. > Writing to file Dec19/R1 > > 03.20 Rate, Stat, 1.8.L, 1.8.H, 1.8.W spectra - attachments 13-20 > Observe > light ions in 1.8.L spectra > low energy (<1.5GeV) heavy ions in 1.8.H spectra with most heavy ions stopping in DSSSDs 1 & 2 > Stat hit patterns indicate broad (c. 5cm FWHM) centred heavy ion peak > > 03.24 Detector biases & leakage currents OK - attachment 21 > FEE64 temperatures OK - attachment 22 > Good event statistics (12 of 12 < 50k) - attachment 23 > > System wide checks > List All Sync Error Counters - attachment 24 > List all Sync Received Counters - attachment 25 > > Baseline invoked earlier c. 00.05 > Collect all SYNC Error Counters for Baseline > Collect All White Rabbit status Error Counters for Baseline > > 04:07 2.6 mm Al degrader. 300Hz beam. 300 MeV/u 40Ar beam. > > 04.14 pulser peak seen in aida09 after performing ASIC check-load earlier in shift - width = 219 ch > > 04.45 1.8.H energy spectra (attachment 26/27) > > 06:08 attachments 28-30: detector bias/leakage currents ok > temperatures ok > good event statistics ok > all system wide checks ok > > 08:49 DAQ stop/start. TapeServer writing to No Storage. End of beam. > > >
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