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 12:30:50 2025
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> 00.46 34Ne stopped for 36Ne setting (R19_37). > DAQ kept running as I was upstairs getting some food. > Stopped at R19_45. > > 00.57 BigRIPS change to 36Ne setting. Start file 0196. Still tuning. > Temps ok. > Leakage currents and bias ok (see attachment 1). > > 01.32 R20 started on 36Ne setting. > BigRIPS file 0197 (started @ 01.30). > BRIKEN file > > 02.23 Beam stopped to F11. End of R20_12. > > 02.28 Beam returned to F11. Start of R20_14. > BigRIPS file 0198. > > 02.48 BRIKEN file 48 started. > Start of R20_19. > All system checks passed except nnaida1 fails global clocks 6. > Temps and leakage currents ok. > > 03:28 BigRips file 0199 (started at 03:27) > AIDA at end file R20_28 > BRIKEN file 47 started > All system wide checks ok. > Temps and leakage currents ok > > 04:36 BigRIPS file 0200 > Coincides with end of AIDA file R20_46 > BRIKEN file 48 > All system wide checks ok > Temps and leakage currents ok > ASIC load check all ok > > 04:59 BigRips run 0201 (Started at 4:45) > Corresponding AIDA file for start of BigRips run is R20_49 > BRIKEN file 49 > Corresponding AIDA file for start of BRIKEn is R20_52 > > 05:33 System wide checks all ok > Temperatures, biases and leakage currents ok (seet attachment 2) > > 05:44 BigRips start run 0202 > Start of AIDA file R20_64 > BRIKEN file 50 > System wide checks passed > 00.46 34Ne stopped for 36Ne setting (R19_37). > DAQ kept running as I was upstairs getting some food. > Stopped at R19_45. > > 00.57 BigRIPS change to 36Ne setting. Start file 0196. Still tuning. > Temps ok. > Leakage currents and bias ok (see attachment 1). > > 01.32 R20 started on 36Ne setting. > BigRIPS file 0197 (started @ 01.30). > BRIKEN file > > 02.23 Beam stopped to F11. End of R20_12. > > 02.28 Beam returned to F11. Start of R20_14. > BigRIPS file 0198. > > 02.48 BRIKEN file 48 started. > Start of R20_19. > All system checks passed except nnaida1 fails global clocks 6. > Temps and leakage currents ok. > > 03:28 BigRips file 0199 (started at 03:27) > AIDA at end file R20_28 > BRIKEN file 47 started > All system wide checks ok. > Temps and leakage currents ok > > 04:36 BigRIPS file 0200 > Coincides with end of AIDA file R20_46 > BRIKEN file 48 > All system wide checks ok > Temps and leakage currents ok > ASIC load check all ok > > 04:59 BigRips run 0201 (Started at 4:45) > Corresponding AIDA file for start of BigRips run is R20_49 > BRIKEN file 49 > Corresponding AIDA file for start of BRIKEn is R20_52 > > 05:33 System wide checks all ok > Temperatures, biases and leakage currents ok (seet attachment 2) > > 05:44 BigRips start run 0202 > Start of AIDA file R20_64 > BRIKEN file 50 > System wide checks passed > > 6:15 Operators call...R20_72 1.5 GB > The BigRIPS system display PC looks like it crashed > > 6:22 2017-04-01 06:21:19 BigRIPS run 203 starts > AIDA run 20_74 is about 25% started > BRIKEN run 51 > > 6:40 Phone rings, AIDA run R20_79 just started > Stripper foil seems to have been changed > > 6:43 2017-04-01 06:42:03 BigRIPS starts a new run > R20_79 is 75% the way through. > BRIKEN run 52 > System checks passed. > > 7:09 PPACs are discharging very frequently. > > 7:39 counted 8 discharges. It's about once in four minutes. An acceptable discharge rate is several times in > one shift. > Firstly, each discharge damages the PPAC. Even 10 to 20 discharges can easily cause dead regions of cm size. > Secondly, with the frequency of discharge, we are now missing like as much as 25% of all events (at least > at a given PPAC) > As the detector becomes more damaged, it can discharge more frequently. > Moving the detector's position slightly can help to alleviate the problem by putting the beam on a fresh region > Anyway, as for a parasitic run they can do whatever they want, but it seems they are mis-operating the PPACs > Basically the voltage is too high or the detector is too old and needs to be replaced. > > 7:40 2017-04-01 07:40:12 BigRIPS run 205 begins > AIDA run R20_94 is at 721 MB at 7:40 > BRIKEN run 53 > System-wide checks are okay > > 8:08 Bias and Temp attachments 3 & 4 (bias_1_.png and temp_1_a.png) > > 9:01 BigRIPS run 206 2017-04-01 09:01:06 > AIDA run R20_115 is at 600 MB at 9:01 > BRIKEN run is 54 > System-wide checks > > 9:39 Now that the students went home and some more experienced beam physicists are on shift, the PPAC discharge rate > goes down to ~2x per hour. > > 10:02 New BigRIPS run at 2017-04-01 10:01:40 number 0207 > AIDA run R20_130 was at 1.9 GB at 10:02.. > BRIKEN run 55 > System-wide checks passed > > (I went upstairs for a break...it seems that the beam got turned off at some point) > > 10:55 Phone call, and I hear the chime for the beam coming back. > > 10:56 BigRIPS starts run 0208 2017-04-01 10:56:06 > AIDA run R20_145 has just started at 10:56 > BRIKEN run was not restarted and continued as run 55 > System-wide checks are okay > > 11:02 We checked that the synchronization looks okay. > > 11:58 Noticed that BigRIPS started a new run at 2017-04-01 11:56:42, run 0209 > AIDA run R20_160 should overlap about 50% with this run. > BRIKEN run is 56 > System wide checks performed. > Attached are Biases and Temperatures as 5 & 6 ("bias_1_b" ; "temp_1_b") > > 12:58 BigRIPS starts run 0210 at 2017-04-01 12:57:21 > AIDA run R20_176 was 422 MB at 12:57 > BRIKEN 57 > Pass system-wide checks > > 14:30 beam current has been fluctuating for awhile > > 14:50 BigRIPS started a new run 0212 2017-04-01 14:44:18 > R20_203 was at 1.2 GB at 14:44 > BRIKEN run 58 > System checks okay > > 15:18 Phone rings. RF is down so the beam stopped. > R20_212 is at 500 MB at 15:19 > > 15:57 Phone rings again. > > 16:37 BigRIPS start run 0214 > Start of AUDA file R20_232 > BRIKEN run 59 > System wide check all ok > > 16:53 Biases and leakage currents ok (See attachment 7) > > 17:36 BigRips start run 0215 > Strt of AIDA file R20_247 > BRIKEN start run 60 > System wide checks all ok > Temperatures all ok > > 18:04 BigRips stop to change gas stripper foil > AIDA file R20_254 > > 18:09 BigRips start run 0216 > AIDA file R20_255 > BRIKEN start file 61 > System wide checks all ok > 6:15 Operators call...R20_72 1.5 GB > The BigRIPS system display PC looks like it crashed > > 6:22 2017-04-01 06:21:19 BigRIPS run 203 starts > AIDA run 20_74 is about 25% started > BRIKEN run 51 > > 6:40 Phone rings, AIDA run R20_79 just started > Stripper foil seems to have been changed > > 6:43 2017-04-01 06:42:03 BigRIPS starts a new run > R20_79 is 75% the way through. > BRIKEN run 52 > System checks passed. > > 7:09 PPACs are discharging very frequently. > > 7:39 counted 8 discharges. It's about once in four minutes. An acceptable discharge rate is several times in > one shift. > Firstly, each discharge damages the PPAC. Even 10 to 20 discharges can easily cause dead regions of cm size. > Secondly, with the frequency of discharge, we are now missing like as much as 25% of all events (at least > at a given PPAC) > As the detector becomes more damaged, it can discharge more frequently. > Moving the detector's position slightly can help to alleviate the problem by putting the beam on a fresh region > Anyway, as for a parasitic run they can do whatever they want, but it seems they are mis-operating the PPACs > Basically the voltage is too high or the detector is too old and needs to be replaced. > > 7:40 2017-04-01 07:40:12 BigRIPS run 205 begins > AIDA run R20_94 is at 721 MB at 7:40 > BRIKEN run 53 > System-wide checks are okay > > 8:08 Bias and Temp attachments 3 & 4 (bias_1_.png and temp_1_a.png) > > 9:01 BigRIPS run 206 2017-04-01 09:01:06 > AIDA run R20_115 is at 600 MB at 9:01 > BRIKEN run is 54 > System-wide checks > > 9:39 Now that the students went home and some more experienced beam physicists are on shift, the PPAC discharge rate > goes down to ~2x per hour. > > 10:02 New BigRIPS run at 2017-04-01 10:01:40 number 0207 > AIDA run R20_130 was at 1.9 GB at 10:02.. > BRIKEN run 55 > System-wide checks passed > > (I went upstairs for a break...it seems that the beam got turned off at some point) > > 10:55 Phone call, and I hear the chime for the beam coming back. > > 10:56 BigRIPS starts run 0208 2017-04-01 10:56:06 > AIDA run R20_145 has just started at 10:56 > BRIKEN run was not restarted and continued as run 55 > System-wide checks are okay > > 11:02 We checked that the synchronization looks okay. > > 11:58 Noticed that BigRIPS started a new run at 2017-04-01 11:56:42, run 0209 > AIDA run R20_160 should overlap about 50% with this run. > BRIKEN run is 56 > System wide checks performed. > Attached are Biases and Temperatures as 5 & 6 ("bias_1_b" ; "temp_1_b") > > 12:58 BigRIPS starts run 0210 at 2017-04-01 12:57:21 > AIDA run R20_176 was 422 MB at 12:57 > BRIKEN 57 > Pass system-wide checks > > 14:30 beam current has been fluctuating for awhile > > 14:50 BigRIPS started a new run 0212 2017-04-01 14:44:18 > R20_203 was at 1.2 GB at 14:44 > BRIKEN run 58 > System checks okay > > 15:18 Phone rings. RF is down so the beam stopped. > R20_212 is at 500 MB at 15:19 > > 15:57 Phone rings again. > > 16:37 BigRIPS start run 0214 > Start of AUDA file R20_232 > BRIKEN run 59 > System wide check all ok > > 16:53 Biases and leakage currents ok (See attachment 7) > > 17:36 BigRips start run 0215 > Strt of AIDA file R20_247 > BRIKEN start run 60 > System wide checks all ok > Temperatures all ok > > 18:04 BigRips stop to change gas stripper foil > AIDA file R20_254 > > 18:09 BigRips start run 0216 > AIDA file R20_255 > System wide checks all ok > > 18:25 BRIKEN start file 61 > AIDA file R20_259 > BRIKEN had to restart the computer so a resync needed to be done > > 19:07 BigRips start file 0217 > AIDA on file R2-_270 (End of file) > BigRips reducing beam intensity to calibrate the beam current > > 19:12 Back to normal BigRips condition > Al degrader 1mm is removed > BigRips run 0218 (started at 19:11) > AIDA file R20_271 > BRIKEN start file 62 > System wide checks ok > > 20:06 Bias and leakage currents ok > Temperature ok > > 20:12 BigRips start run 0219 > Start of AIDA file R20_287 > BRIKEN starts file 64 > System wide checks all ok > ASIC load check ok > > 21:12 BigRips start run 0220 > AIDA file R20_301 > System wide checks ok > BRIKEN starts file 65 > > 22:12 BigRips stopped to change stripper foils > End of AIDA file R20_315 > > 22:20 BigRips start run 0220 > End of AIDA file R20_317 > System wide checks and temperatures ok > BRIKEN start file 66 > > 23:08 Biases and leakages ok > > 23:10 BigRips start run 0222 > End of AIDA file R20_329 > BRIKEN start file 67 > System wide checks all ok Encoding: HTML ELCode plain Suppress Email notification

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