ELOG AIDA

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

AIDA

Fields marked with * are required
Entry time:	Sat Mar 29 12:37:21 2025
Author*:
Subject*:
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 Encoding: HTML ELCode plain Suppress Email notification

Attachment 1:
Drop attachments here...

ELOG V3.1.4-unknown