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:	Sat Mar 29 11:18:22 2025
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> 00.33 DSSSD bias & leakage currents OK - see attachments 1 & 2 > FEE64 temperatures OK - see attachment 3 > > 00.34 DAQ continues (RIBF03R1/R10) > > ASIC settings 2016Nov17-10.50.10 > > BNC PB-4 pulser > Amplitude 90,000 > x5 attenuator IN > frequency 25Hz range > t_r 50ns, tau_d 50us > polarity -, tail pulse, delay MIN, INT ref > > good events - see attachment 4 > N.B. 5x FEE64s > 100k data items/s - intrinsic/extrinsic noise has changed cf. 0x FEE64s previously > > 00.50 SyncCheck - see attachment 5 > Two peaks for RIBF-AIDA, one peak for BRIKEN-AIDA => RIBF issue? > > Merge statistics - see attachments 6-11 > > 00.56 All system-wide checks OK - except clock status - see attachment 12 > Note - clock status fails show bit 2 set > > 01.02 Visual scaler - see attachment 13 > > 03.00 Beam stopped temporarily. > File R10_142 @ ~ 1.5Gb. > Beam returned ~03.06. Near end of file R10_147. > > 05.57 Bias and leakage currents ok (attachments 14+15). > > 06.25 R10 (@R10_211) stopped in anticipation of LN2 fill. > > 07.11 Successfully restarted DAQ after LN2 fill. > Started run R11. > > 07.18 Beam stopped to change stripper foil. > End of R11_1. > DAQ also stopped as I typed this. > > 07.53 Beam returned. > > 08.01 R12 started on 1GeV setting to look at suspicious data in high LEC/low HEC ranges. > Will run this for ~30mins. > (NB: Threshold of 0x20 was not changed so...) > > (DK arrives on shift) > > 08.21 Data size of R12 very small, but maybe to be expected as the low gain usually contains ~10k counts which > is now suppressed? > Offline analysis show no implants, even in the low gain portion. Strange! > Redo this test again later today if possible > > 08.50 Stop R12 > Change the medium energy back to low energy > > 08.55 Start R13 with low and high energy modes > The data stops writing to disk for some reason > > 09.05 Switch the degrader condition: was degraders 2 & 3, now degraders 1 & 2 > Liu and Alfredo had found one 40Mg event (it seems we have about 1 such event per hour) > However, it was only implanted into DSSD #1, so we want to implant 40Mg deeper (N=1 statistics, woohoo) > So now, 0.5 mm W (+1 mm Al) and 0.3 mm W (+1 mm Al) > > 09.14 Run takes a moment to begin (data transfer links on FEE 3 and 4 dropped out briefly). R14 now. > > 09.39 Data writing stopped. We re-sequence the merger (toggle data transfer on all FEE64s), and start run R15. > > 09.43 R15 stops writing to disc. All system checks still passed, but not writing. > Restart merger but lose contact with nnaida14. > 09.50 Power cycle FEEs. > > 10.20 Start run R16 -- garbage > nnaida13 refuses to calibrate ADCs > Maybe miscommunication with BRIKEN team? > When we restart, they need to reload parameters, and then they cannot see our sync (or we are actually not > sending it?) > > 10.25 Start run R17 > Still the time stamp from AIDA is not visible on the sync check? > One of the Check ASIC Control tests returned something other than OK > (sorry, we did not copy it) > But trying it again (w/o other changes), then it returned the default OK values. > BRIKEN is not synced with BigRIPS? They don't know if it gets syncs from AIDA or not > All AIDA sync checks appear as normal, however > > 10.36 BRIKEN and AIDA seem to now be synchronized (we did nothing on the AIDA side) > It is unclear if we are sync'd with BigRIPS. > Stop this run to get aligned with BRIKEN > > 10.41 Start R18. Checks on ASICs and SYNC come back good. > Degrader settings (not changed): 3 mm Pb,; 0.5 mm W (+1 mm Al); 0.3 mm W (+1 mm Al) > F11 plastic rate 8 cps > BigRIPS run 1026; started 10:27 > > (CG leaves shift) > > (TD arrives) > > 12.28: BigRIPS run number 1028 > > 12.58 Checking the synchronization, and it is not correct. > R18_28: BRIKEN issues a new synchronization signal > > 13.25 Merger stops > > Merger error messages for Q 23 (nnaida24) - see attachment 16 > nnaida24 reboots c. 13:31 - see attachment 17 > > Request DAQ STOP, restart Merger > DAQ stops OK > Request DAQ RESET & SETUP > R19 started for AIDA, but we never get the full data links (junk) > > 13.54 nnaida15 did not show data transfer -> merger restarted > Now R20_0, DAQs look good, BRIKEN issued resync > BigRIPS run 1028 still > > 14.00 SyncCheck see attachment 18 > good events statistics - see attachment 19 - rates lower than observed yesterday, not clear why > > > > > > Encoding: HTML ELCode plain Suppress Email notification

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