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ID |
Date |
Author |
Subject |
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550
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Sun Apr 2 03:32:30 2017 |
DK, OH | Pulser walkthrough | 11:32 Pulser walkthrough, 90k down to 10k, 10k steps, 1 min per step
R26
11:41 stop run R26
11:44 Pulser walkthrough, 10k to 2k in 2k steps, 90 seconds per step
R27
11:53 stop run R27
11:56 Pulser walkthrough, 2k to 10k in 2k steps (90 sec each) & 10k to 40k in 10k steps (60 sec per step)
R28
12:05 Attachment 1 shows biases ("bias_2_a.png")
12:07 stop run R28
12:15 background run, R29
12:39 stop run 29. |
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549
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Sat Apr 1 16:16:05 2017 |
OH, CG | Sunday 2 April | 00:12 BigRips started run 0223 (Started at 00:12)
AIDA file R20_344
System wide checks all ok
BRIKEN start run 67
01.38 Beam stopped to F11. ~1/2 way through R20_364.
01.43 Beam returned to F11. 1GB through R20_366.
BigRIPS file 0224.
BRIKEN run 68.
System-wise checks all ok, except nnaida1 global clocks failed 6.
Temps ok. Leakage currents ok (see attachment 1).
02.43 BigRIPS started run 0225. Start of R20_381
02.48 BRIKEN run 69 started. Start of R20_382.
03.28 System-wide checks same as previous. (R20_391)
03.43 BigRIPS file 0226. ~1/2 way through R20_394
03.48 BRIKEN run 70 started.
04.46 BigRIPS file 0227 started. End of R20_410.
04.48 BRIKEN run 71 started. Start of R20_411.
05.31 36Ne setting is over. End of R20_421.
BigRIPS team is changing setting for calibration. No beam will go through Zerodegree
05.51 R20 stopped (I was getting food).
06.30 20mm Al degrader + 3mm plastic removed from F8. 23mm Al degrader placed at F11 after IC.
06.35 BigRIPS file 0237 started - 38Mg setting.
06.37 R21 started on 38Mg setting.
06.57 Beam stopped to F11 - accelerator problem.
~700MB into R21_5.
Returned shortly after.
07.23 BigRIPS file 0245 started. ~3/4 way through R21_10.
07.26 BigRIPS file 0246 started. ~1/2 way through R21_11.
07.32 BigRIPS file 0247 started. Start of R21_13.
07.34 BigRIPS file 0248 started. ~1/2 way through R21_13.
07.38 BigRIPS file 0249 started. ~1GB into R21_15.
07.40 BigRIPS file 0250 started. Start of R21_16.
07.41 BigRIPS file 0251 started. Little way through R21_16.
08.06 38Mg setting finished. R21 stopped.
08.08 R22 started - got a bit trigger happy with the DAQ. No beam to F11.
08.10 Degrader set to 10mm Al.
08.16 BigRIPS file 0252 started on 39Al setting.
08.17 R23 started on 39Al setting.
08.20 R23 ended.
08.26 40Si setting. Too high rate for AIDA so beam won't be sent down ZDS.
08.40 F11 degrader set to 15mm Al fixed + 4mm Al variable (all in).
08.43 2nd run at 39Al setting.
BigRIPS file 0254 started.
R24 started.
09.00 R24_4 closed. May have been issues with degrader - not sure we were implanting in AIDA...
End of experiment!
09.07 AIDA background run started - R25.
Pulser is on in the run though.
09.20 R25 ended.
BigRIPS run summary attached. |
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548
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Fri Mar 31 17:21:56 2017 |
CG, OH, DK | Saturday 1 April - Run status | 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 |
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547
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Thu Mar 30 16:12:21 2017 |
DK, OH, CG | Friday, March 31 run status | 00:11 BigRIPS has started a new run at 00:10:42 run 0165.
AIDA subrun R16_357 was about halfway (~1 GB) at 00:11.
BRIKEN run 21 ( so-called 170331_0012_Mg40 )
Check clock status: FEE64 module nnaida1 global clocks failed, 6 [ as usual, and it is set to ch 2 ]
ADC calib all pass
Clock timestamp, passed
Sync counter error, passed
Sync pulses all consistently near 3 x 10^7
Memory info from Linux FEE64 all around 35k to < 40k
Sync check on the BRIKEN terminal is looking all consistent to me.
Temperatures are seen as attachment 1, temps_31_a.png
Biases and leak currents seen as attachment 2, bias_31_a.png
As for what I've checked then we continue on in what appears to be a stable condition.
01:12 I can see BigRIPS team at their DAQ PC about to change the run.
2017-03-31 01:12:24 BigRIPS run 0166 starts
AIDA subrun R16_372 is 75% finished at 1:12
BRIKEN run 22, [ 170331_0114_Mg40 ] -- timestamp beginning at 1:14 means they are almost exactly at the
beginning of AIDA R16_373
Check clock status, ibid to above
Check ADC calib, ibid
Check ASIC clock timestamp, ibid
Check sync errors, ibid
Check sync pulses, 3.2 x 10^7 consistently
Check FEE64 memory, 36k to 37k.
Sync check at BRIKEN is still running and shows the clocks are lined up.
Continue.
02:10 BigRIPS begins a new run, number 0167
AIDA subrun R16_386 finished at 2:10, so BigRIPS 0167 should correspond nicely with the start of AIDA R16_387
BRIKEN run number 23 [ 170331_0214_Mg40 ]
All six (6) system wide checks were performed. The situation remains stable as above.
03:13 BigRIPS starts a new run at 3:12:51
AIDA R16_402 is about 50% complete at 3:13
BRIKEN 24 [ 170331_0314_Mg40 ]
All system-wide checks are passed. Number of sync pulses is ~3.7 x 10^7
03:33 Bored so here's some spectra, attachment 3 as pulses_31_b.png. It looks good.
04:10 BigRIPS run 0169 began at 2017-03-31 04:09:50
AIDA is R16_416 50% though at this time.
BRIKEN 25 [ 170331_0413_Mg40 ]
All checks passed. I'm not just writing it, but they were performed :)
See attachment 4 for bias. had screencapped temp but forgot to update so it was just a clone of attachment 1 (this
was noticed at 8:07)
04:58 Beam operators called. They stopped the beam so they can exchange the carbon stripper foil.
AIDA R16_428 was 25% through at 4:58.
05:02 R16_429 is at 600 MB I hear the chime to indicate the beam is back
BigRIPS 2017-03-31 05:02:57 run 0170 is started
BRIKEN run 27 [ 170331_0504_Mg40 ] -- NB: Run 26 was junk (some mistake)
All six (6) system wide checks are a go. 3.7 x 10^7 is the sync pulse count.
Continue.
05:12 I show you the AIDA look good in attachment 5 spec_31_c.png
06:10 still waiting on BigRIPS to notice what time it is.
06:14 BRIKEN sends the resync. (this note is written at 7:11..see below)
06:16 R16_447 Jorge realizes there are no neutrons in BRIKEN, and we realize the second beam physicist is on the phone.
06:29 Beam physicists hang up the phone...2017-03-31 06:29:30 BigRIPS run 0171
AIDA run R16_451 is almost exactly beginning at 6:29
BRIKEN run number 28
The system wide checks are consistent as before
FEE64 module nnaida1 global clocks failed, 6
Check sync pulses sees 3.9 x 10^7
06:36 - I asked the BigRIPS team the situation. Basically, they calibrate the faraday cup and also three plastic
scints near F0 (primary target) for calibrartion (cross section estimation) purposes.
So it seems in this time THEY have the beam yet we do not because it is not reaching all the way to F11 the
entire time.
Though I do not want to bother the operators with too many questions, it can be that parts of BigRIPS run 0170
near the end will not correlate with our data.
07:11 - I had not caught that BRIKEN sent the resync. It was confirmed that it was the only resync issued tonight.
Please see the attachment 6 "spec_31_d.png", though I'm not sure it would be useful
07:47 Not sure the situation. Beam physicists were near their DAQ PC for a bit, then on the phone, but their run has not
restart.
AIDA run R16_469 at this time, just to note.
07:57 2017-03-31 07:55:33 BigRIPS run 0177 is started. Evidently run 0176 is skipped somehow.
AIDA R16_471 was at 1.9 GB at 7:57 so probably it mostly correlates with the start of the BigRIPS run.
BRIKEN run number 29 (?) [ 170331_0758_Mg40 ]
[8:15 - confirmed the problem with beam physicists was a DAQ issue. Thus BigRIPS run 0172 is junk, and they took
some time to resolve their issue.]
System-wide checks look normal. 4 x 10^7 sync pulses
Attachments 7 and 8 have bias and temp ("bias_31_e.png" and "temp_31_e.png")
08:07 When doing the temperature this time, I realized that an early temperature "temp_31_b" was just a clone of
"temp_31_a" as I forgot to refresh. Now the attachment numbering changes as I delete it, and the elog is updated to
correctly reflect the new ordering. I should be more careful.
08:56 BigRiips start run 0174
End of AIDA file R16_485
BRIKEN file 31
System wide checks all ok *except* nnaida1 fails global clocks 6
ASIC check all ok
09:44 BigRips stopping the beam
Half way through AIDA file R16_498
09:57 System wide checks all ok *except* nnaida1 fails global clocks 6
10:01 BigRips start run 0175
Start of AIDA file R16_502
BRIKEN file 32
10:11 Biases and leakage currents ok (See attachment 9)
10:19 BigRips start run 0176
End of AIDA file R16_506
10:23 BRIKEN start file 33
AIDA on file R16_507
11:21 BigRips start run 0177
End of AIDA file R16_521
BRIKEN start file 34
System wide checks all ok *except* nnaida1 fails global clocks 6
Temperatures ok (See attachment 10)
12:21 BigRips start run 0178
AIDA file end of R16_536
BRIKEN start run file 35
System wide checks all ok *except* nnaida1 fails global clocks 6
ASIC load check ok
12:43 Biases and leakages are ok (See attachment 11)
13:20 BigRips run 0179
AIDA halfway through R16_551
BRIKEN start run file 36
System wide checks all ok *except* nnaida1 fails global clocks 6
13:39 bigRips run 0180
AIDA file end of R16_555
14:44 System wide checks all ok *except* nnaida1 fails global clocks 6
ASIC load check ok
Temperatures all ok (See attachment 12)
Biases and leakage currents ok (see attachment 13)
15:14 BigRips is stopped
AIDA file R16_579
15:16 BigRips started run 0181
AIDA file end of R16_579
15:24 BRIKEN starts file 37
AIDA file 3/4 of R16_581
16.18 BigRIPS file 0182.
Just after start of R16_595.
BRIKEN file 38 starts @ 16.21.
16.55 All system-wide checks ok except nnaida1 fails global clocks 6.
Temps, bias and leakage currents (see attachment 14) all ok.
17.18 BigRIPS run 0183.
~1/2 way through R16_609.
BRIKEN run 39.
18.27 BigRIPS file 0184 started. Start of R16_627.
18.31 Beam stopped at F11 for stripped foil change. Very end of R16_628.
18.38 Beam returned to F11. 1.3GB through R16_630.
BigRIPS file 0185.
BRIKEN run 40.
19.15 System-wide checks as previously.
19.38 BigRIPS file 0186. End of R16_654
19.43 BRIKEN file 41 started.
20.48 BigRIPS file 0187 started for 30Ne tuning.
BRIKEN will not be taking data.
20:50 AIDA stopped on file R16_663
Stopped as end of 39Na and the start of the BigRIPS sweep of settings.
20:52 BigRips starting with 30Ne
20:53 Started AIDA file R17. Centring beam along ZDS.
F11 rate ~50cps. All variable degrader in (19mm).
20.58 BigRIPS file 0188 started.
21.04 30Ne setting started. BigRIPS file 0189 started.
21.20 30Ne stopped for 31Ne centring. BigRIPS file 0190.
21.27 BigRIPS file 0191 started for 31Ne yield measurement.
(JLT has spoken with operators and it seems up until now beam has been stopped at F7. We are taking this to be the
case unless advised otherwise.)
21.59 BigRIPS file 0192 started on 32Ne yield setting. Beam to F11.
22.01 R17 stopped and R18 started.
22.05 32Ne setting finished.
R18 stopped.
22.19 BigRIPS file 0194 started for 34Ne setting.
AIDA run R19 started.
BRIKEN run 43.
Currently 10mm degrader but LISE predicts everything should pass through.
22.43 Degrader changed to 19mm Al at start of R19_6.
LISE predicts implants in DSSD#2.
23.23 Beam stopped to F11. 1.8 GB into R19_15.
23.25 Beam returned to F11. 1GB into R19_16.
BigRIPS file 0195.
Degrader reduced to 16.8mm Al. |
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546
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Wed Mar 29 18:02:12 2017 |
OH, TD, DK, CG | Thursday 30th March | 02:02 Recovered DAQ from crash. Merger became clogged and the system required a full restart. Raspberry pi also
required a restart to regain control of the USB power relay.
AIDA R16 started
BigRips on run 0143 which started at 01:19
BRIKEN run 2
Biases and leakage currents ok see attachment 1
Screenshots attached for good events, sync, pause and resume (attachments 2-5)
02:23 BigRips started run 0144
AIDA on run R16_5
BRIKEN run 3
02:47 All system wide checks ok
03:25 BigRips Run 0145
AIDA run R16_22 begins at 03:26
BRIKEN run 4
All system wide checks ok
04:00 Biases and leakage currents ok (attachment 6)
04:25 BigRips has stopped. AIDA run R16_37
brief stop in beam time as Shunji got access to the area and removed the fixed degrader.
In the hope that we were stopping ions before they reached AIDA.
It is now attached to the furthest upstream variable degrader.
04:29 bigRips run 0146
AIDA run R16_38
BRIKEN run 5
System wide checks ok, ASICS settings checked
05:31 BigRips beam stopped. Carbon foil change
AIDA file run R16_54
BRIKEN also stopped
Was running with 13mm of Al. Switching to 11mm of Al degrader.
05:41 BigRips start Run 0147
AIDA file R16_57 starts at 05:52
BRIKEN run 6
System wide checks all ok.
06:00 Bias and leakages ok (see attachment 7)
06:26 System wide checks ok
06:43 BigRips stopped their run.
AIDA currently on R16_73. Still running even after LN2 fill.
07:17 BigRips start run 0148
AIDA run R16_81
BRIKEN run 7
System wide checks and ASIC load all ok
07:42 Bias and leakage currents ok (see attachment 8)
08:22 System wide checks all ok
08:36 BigRips started run 0149
AIDA file R16_104
08:41 BRIKEN run 8
09.30 System-wide checks all ok.
Leakage currents ok (see attachment 10).
09.43 BigRIPS run 0150 starts. Corresponds to the beginning of R16_125.
10.35 System-wide checks all ok. nnaida1 still fails clock status check, but bit 2 is set.
Leakage currents ok.
R16_141.
10.44 BigRIPS run 0151 starts. Corresponds to the end of R16_142.
11.40 System-wide checks all ok. nnaida1 still fails clock status check, but bit 2 is set.
Leakage currents ok.
R16_141.
11.45 BigRIPS run 0152 starts. Corresponds to end of R16_159
12.00 Leakage currents all ok (see attachment 11).
12.47 PE16/R16_178
BRIKEN file 11
BigRIPS run0153
12.50 System wide checks OK *except* nnaida1 fails global clocks 6
ASIC check control
13.41 1.8.H and 1.8.W spectra
13.43 System wide checks OK *except* nnaida1 fails global clocks 6
14.03 BigRIPS run 0154.
Roughly start of R16_199.
14.21 BigRIPS run 0155.
Start of R16_204.
14.50 System-wide checks all passed except nnaida1 fails global clocks 6.
Leakage currents ok.
15.23 Beam off. ~Half way through R16_220.
Degrader reduced from 11mm to 8mm.
Previously no pulser visible in p-side FEEs. Jiggled pulser cabling and pushed all LEMO connectors in.
Pulser no visible in 1.8.L for all p-side FEEs.
15.28 Beam returned. End of R16_221.
BigRIPS file 0156.
15:40 STQ problem so beam stopped near start of R16_225.
16.05 Beam returned to F11. 1.7G into R16_231.
BigRIPS file 0157
BRIKEN file 15
System-wide checks all passed except nnaida1 fails global clocks 6.
Leakage currents ok.
17.20 BigRIPS file run0158
17.38 Bias & leakage currents OK - see attachments 16-17
FEE64 temperatures OK - see attachment 18
Statistics - good events, AIDA disc, SYNC, PAUSE, RESUME, correlation L - see attachments 19-24
Merge statistics - see attachments 25-26
17.40 System wide checks OK *except* nnaida1 fails global clocks 6
18.21 BigRIPS run0159
AIDA R16_269
BRIKEN file 17
18.44 System wide checks OK *except* nnaida1 fails global clocks 6
19.31 BigRIPS run0160
AIDA R16_288
BRIKEN file 18
19.55 System wide checks OK *except* nnaida1 fails global clocks 6
20.22 BigRIPS run0161
AIDA R16_300
BRIKEN file 19
Degrader 8mm Al (unchanged)
21.32 BigRIPS run0162
AIDA R16_318
BRIKEN file 20
Degrader 8mm Al (unchanged)
21.32 Bias & leakage currents OK - see attachments 27-28
FEE64 temperatures OK - see attachment 29
21.38 System wide checks OK *except* nnaida1 fails global clocks 6
22.16 BigRIPS run0163
AIDA R16_329
Degrader 8mm Al (unchanged)
22.30 System wide checks OK *except* nnaida1 fails global clocks 6
22.33 AIDA synchronised - R16_333 - see attachment 30
23.07 BigRIPS run0163
AIDA R16_341
BRIKEN
Degrader 8mm Al (unchanged)
23.28 ASIC settings 2017Mar27-16.12.39
BNC PB-4
Amplitude 90,000
x5 attenuator IN
t_r 50ns tau_d 50us
frequency 25Hz range
polarity-
tail pulse, delay MIN
23.35 System wide checks OK *except* nnaida1 fails global clocks 6
23.28 Analysis of data fileR16_347 - see attachment 31
23.48 daid on shift. |
|
|
545
|
Wed Mar 29 17:49:36 2017 |
DK | cshrc hacking w/ MIDAS | The ~/.cshrc was modified to change the MIDAS path for a convenient analysis method, but it should be done in a shell script instead, as it pushes the MIDAS BASE to all instances
of MIDAS, such as the Run Control, etc.
As we did not want to log out, and the X session is setting these globally somehow (unexpected) then I did a temporary hack.
The directory we did not want, MIDAS@aidas.240215 was moved to MIDAS@aidas.240215.hacking
Then a symbolic link called MIDAS@aidas.240215 was created to point at MIDAS@aidas
We should remember to undo this later and fix the situation. |
|
|
544
|
Wed Mar 29 13:38:38 2017 |
OH, DK, CG | First beam runs | For BigRIPS run numbers, they are available online: http://bripscnt01.rarfadv.riken.jp/runsum/index.php
21:30 AIDA and BRIKEN are ready to go -- so we closed the door and asked the BigRIPS team to send the beam to
F11. It will take about 30 minutes as they want to recalibrate one of the Faraday cups.
22:09: Beam is coming to F11. AIDA sub-run R13_17 is running at 22:10 so nearly the same time.
BigRIPS run number 0140
BRIKEN file name 170329_2213_40Mg Run 0. It is started at 22:13. R13_18 for AIDA
See attachment 1 for biases.
23:12: We notice that BigRIPS began the run 0141 at 23:08
AIDA subrun R13_36 began about or near 23:07 or 23:08
BRIKEN run number 170329_2313_40Mg Run 1
All system-wide checks passed (excepting nnaida6 clock status which is a known issue)
Statistics rates look reasonable, except that the nnaida 16 23 24 are even higher than before when the beam
was off (~200k)
23:59 - AIDA crashed. Merger stopped. When attempting to stop the run, the following error is displayed:
STATE for nnaida1 returned with an error
error: SOAP http transport timed out after 20000 ms
NONE
error: SOAP http transport timed out after 20000 ms
while executing
"$transport $procVarName $url $req"
(procedure "::SOAP::invoke" line 18)
invoked from within
"::SOAP::invoke ::SOAP::_DataAcquisitionControlClient__GetState"
("eval" body line 1)
invoked from within
"eval ::SOAP::invoke ::SOAP::_DataAcquisitionControlClient__GetState $args"
(procedure "DataAcquisitionControlClient__GetState" line 1)
invoked from within
"DataAcquisitionControlClient__GetState"
We kill off the merge and tape server.
DAQ itself comes back after a reset. Attempting to open the tape service, however, yields an error
Cannot issue more Access Tokens
ClaimTapeServer returned:-
3 Capability table is full.
30.3.2017
0:56 When attempting to bring AIDA back up, eventually nnaida10 was not showing merger data before enabling the
ASIC readout data. On the run control, nnaida10 consistently showed that its data transfer was not enabled.
Attempting to reset etc., then eventually issuing Go would drop all the data transfers.
After a power cycle by the standard method, essentially the problem persists, except that it is nnaida 7 8 9 10
(the whole block) which shows the problem where we cannot get the enabled data transfer to stick. |
|
|
543
|
Wed Mar 29 13:02:17 2017 |
TD | Report - high - interaction between DHCP and FEE64 authenticated mount requests |
What has happened here?
Power cycle of FEE64s
24x authenticated mount request c. 20.56
Followed by repeat for nnaida20 following DHCP activity c. 21.00
Mar 29 20:56:44 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.1:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:44 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.2:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:45 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.7:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:45 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.4:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:46 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.3:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:46 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.5:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:46 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.8:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.9:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.10:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.12:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.24:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.13:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.6:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.20:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:47 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.14:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.15:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.16:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.22:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.18:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.23:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:48 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.11:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:49 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.19:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:49 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.21:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 20:56:49 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.1.17:864 for /MIDAS@aidas
(/MIDAS@aidas)
Mar 29 21:00:43 aidas1 dhcpd: DHCPDISCOVER from 00:04:a3:2a:d0:11 via p2p2
Mar 29 21:00:43 aidas1 dhcpd: DHCPOFFER on 10.1.2.20 to 00:04:a3:2a:d0:11 via p2p2
Mar 29 21:00:43 aidas1 dhcpd: DHCPREQUEST for 10.1.2.20 (10.1.2.250) from 00:04:a3:2a:d0:11 via p2p2
Mar 29 21:00:43 aidas1 dhcpd: DHCPACK on 10.1.2.20 to 00:04:a3:2a:d0:11 via p2p2
Mar 29 21:00:43 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.20:686 for
/data10/XilinxLinux/ppc_4xx/rfs/nnaida20 (/data10/XilinxLinux/ppc_4xx/rfs)
Mar 29 21:01:08 aidas1 rpc.mountd[2812]: authenticated mount request from 10.1.2.20:864 for /MIDAS@aidas
(/MIDAS@aidas) |
|
|
542
|
Wed Mar 29 08:13:34 2017 |
DK, PV, JL, CG | Degrader, Pb wall opening | 16:21
Chris noticed that when the degraders that are at the beam right position when they are "out" may not be fully removed from the beamline. It's difficult to make a good
measurement, but it looks like several cm (~3 cm?).
The degrader that moves out to the beam left side has its inner-most edge roughly flush with the square opening of the polyethylene wall.
It does not seem that the issue is about the slider's center position. This we checked yesterday and within the judgement of our eyes and limited viewing angle, several people
independently confirmed that the center of the degrader slider is near the true center of BRIKEN and AIDA with respect to the beam axis. It appears to be an issue of the
slider's total track length. Also it should be noted that the degraders are installed in a somewhat asymmetric way, so the consideration of one opening side of the degraders
when fully open and another isn't fully out may not be germane.
16:44
We shifted the center of the degrader slider to be about less 1 cm to the beam right. So now the degraders a bit more symmetric as far as their inner edges are related to the
opening in the polyethylene wall.
As for the Pb wall, its opening is ~10.5 cm. The "window" in the Pb wall is slightly shifted to the beam left side. The left side is ~5.5 cm from the center, where as the right
side is <5.5 cm from the center. |
|
|
541
|
Wed Mar 29 05:08:04 2017 |
TD | Report - medium - delayed or missing authenticated mount requests following FEE64 power cycle | This is not, I think, a new observation.
Following FEE64 power cycles we sometimes observe delayed ( ~5-15 minutes ) authenticated mount requests
as the FEE64s mount their root filesystem from the AIDA server aidas1 - see attachment 1.
There also appears to be an instance of a *missing* authenticated mount request - nnaida10 at 19.51
So this is *a* (but probably not *the*) cause of FEE64 timeouts observed following a FEE64 power cycle
and then waiting 10 minutes before attempting to start the MIDAS DAQ.
I have noticed that these issues appear to be significantly worse when we are using NTFS-mounted USB disks
to backup data from the AIDA server internal disks. Indeed, performance in general is noticeably slower when
using the NTFS-mounted USB disks.
Currently, we attempt to mitigate these issues by either throttling rsync or nice'ing cp. |
|
|
540
|
Wed Mar 29 00:23:12 2017 |
TD | Analysis of Mar2017/R3 | Analysis of Mar2017/R3_0 ... R3_9 by MIDASsort
*** ENTRY finish
*** data items: ********** ( -48528.10 Hz)
*** ADC events: 908055140 ( 26136.76 Hz)
*** time warps: 0 ( 0.00 Hz)
*** DSSSD # 1 count: 162 old count: 162 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 2 count: 69 old count: 69 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 3 count: 62 old count: 62 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 4 count: 70 old count: 70 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 5 count: 53 old count: 53 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 6 count: 62 old count: 62 dt: 50309.28 s LEC rate: 0.00 Hz
*** DSSSD # 1 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** DSSSD # 2 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** DSSSD # 3 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** DSSSD # 4 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** DSSSD # 5 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** DSSSD # 6 count: 0 old count: 0 dt: 50309.28 s HEC rate: 0.00 Hz
*** ENTRY finish ends
Background run (pulser off) with slow comparator thresholds ~1000keV
to check for intrinsic and extrinsic alpha activity in DSSSDs # 1-6
- see attachments 1-4 & 8
Spectra show alpha events distributed across the active areas of all
DSSSDs - DSSSD #1 has largest number of alpha events
Analysis routine implantdecay.f, spectrum titles and sort variables
- see attachments 5-7
Note change of FEE64 configuration cf. September-December 2016. |
|
|
539
|
Wed Mar 29 00:02:49 2017 |
TD | Wednesday 29 March | 08.02 DAQ halted overnight
System checks OK *except* for nnaida1 global clocks error 6 and some SYNC errors - see attachments 1-5
08.05 Biases & leakage currents OK - see attachments 6-7
Ambient temperature +23.6 deg C, d.p. -3.2 deg C, RH 16.6%
Julabo FL11006 set point +20 deg C actual +20.0 deg C
FEE64 temperatures OK - see attachment 8
08.08 Soft reset
08.14 PE16/R5
Test response of AIDA DAQ to LN2 refill cycle
ASIC settings 2017Mar27-16.12.39
BNC PB-4
Amplitude 90,000
attenuator x5 IN
t_r 50ns tau_d 50us
frequency 25Hz range
polarity -
delay MIN, tail pulse
08.15 DAQ OK - no sync errors, merger & tapeserver OK - at start of LN2 fill cycle
08.25 DAQ OK - no sync errors, merger & tapeserver OK - at end of LN2 fill cycle reported by SN (actually first
valve closing)
08.47 PE16/R5 ends OK
aidas1> ~/td/analyser/analyser /TapeData/PE16/R5_8
*** TDR format 3.3.0 analyser - TD - October 2016
*** ERROR: READ I/O error: 5002
blocks: 3117
ADC data format: 25180761 ( 1032182.6 Hz)
Other data format: 243324 ( 9974.1 Hz)
Sample trace data format: 0 ( 0.0 Hz)
Undefined format: 0 ( 0.0 Hz)
Other data format type: PAUSE: 4 ( 0.2 Hz)
RESUME: 4 ( 0.2 Hz)
SYNC100: 223299 ( 9153.2 Hz)
FEE64 disc: 19744 ( 809.3 Hz)
MBS info: 273 ( 11.2 Hz)
Other info: 0 ( 0.0 Hz)
ADC data range bit set: 372 ( 15.2 Hz)
Timewarps: ADC: 0 ( 0.0 Hz)
PAUSE: 0 ( 0.0 Hz)
RESUME: 0 ( 0.0 Hz)
SYNC100: 0 ( 0.0 Hz)
FEE64 disc: 0 ( 0.0 Hz)
MBS info: 0 ( 0.0 Hz)
Undefined: 0 ( 0.0 Hz)
Sample trace: 0 ( 0.0 Hz)
*** Timestamp elapsed time: 24.396 s
FEE elapsed dead time(s) elapsed idle time(s)
1 0.000 0.000
2 0.000 0.000
3 0.000 0.000
4 0.000 0.000
5 0.000 0.000
6 0.010 0.000
7 0.000 0.000
8 0.000 0.000
9 0.000 0.000
10 0.000 0.000
11 0.000 0.000
12 0.000 0.000
13 0.000 0.000
14 0.000 0.000
15 0.000 0.000
16 0.032 0.000
17 0.000 0.000
18 0.000 0.000
19 0.000 0.000
20 0.000 0.000
21 0.000 0.000
22 0.000 0.000
23 0.050 0.052
24 0.032 0.000
25 0.000 0.000
26 0.000 0.000
27 0.000 0.000
28 0.000 0.000
29 0.000 0.000
30 0.000 0.000
31 0.000 0.000
32 0.000 0.000
*** Statistics
FEE ADC Data Other Data Sample Undefined Pause Resume SYNC100 Disc MBS
Other HEC Data
0 0 0 0 0 0 0 0 0 0
0 0
1 1515272 10040 0 0 0 0 9306 734 0
0 22
2 1865767 10389 0 0 0 0 9306 1083 0
0 0
3 747909 10149 0 0 0 0 9307 842 0
0 0
4 219072 9941 0 0 0 0 9306 635 0
0 2
5 990462 10121 0 0 0 0 9307 814 0
0 0
6 1169560 10176 0 0 1 1 9302 599 273
0 4
7 501892 9945 0 0 0 0 9307 638 0
0 0
8 443446 10086 0 0 0 0 9306 780 0
0 26
9 1146021 9904 0 0 0 0 9307 597 0
0 0
10 1079867 10446 0 0 0 0 9306 1140 0
0 0
11 231978 10103 0 0 0 0 9305 798 0
0 0
12 323199 9939 0 0 0 0 9306 633 0
0 0
13 669310 10234 0 0 0 0 9302 932 0
0 0
14 807685 9898 0 0 0 0 9305 593 0
0 111
15 1824230 10367 0 0 0 0 9305 1062 0
0 0
16 1918844 10136 0 0 1 1 9295 839 0
0 0
17 1203907 10012 0 0 0 0 9307 705 0
0 0
18 1650085 10349 0 0 0 0 9306 1043 0
0 0
19 583697 10367 0 0 0 0 9305 1062 0
0 0
20 474353 9969 0 0 0 0 9307 662 0
0 176
21 216947 10564 0 0 0 0 9307 1257 0
0 26
22 996462 9999 0 0 0 0 9306 693 0
0 0
23 2580229 10036 0 0 1 1 9288 746 0
0 5
24 2020567 10154 0 0 1 1 9295 857 0
0 0
25 0 0 0 0 0 0 0 0 0
0 0
26 0 0 0 0 0 0 0 0 0
0 0
27 0 0 0 0 0 0 0 0 0
0 0
28 0 0 0 0 0 0 0 0 0
0 0
29 0 0 0 0 0 0 0 0 0
0 0
30 0 0 0 0 0 0 0 0 0
0 0
31 0 0 0 0 0 0 0 0 0
0 0
32 0 0 0 0 0 0 0 0 0
0 0
*** Timewarps
FEE ADC Pause Resume SYNC100 Disc MBS Undefined Samples
0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0 0
3 0 0 0 0 0 0 0 0
4 0 0 0 0 0 0 0 0
5 0 0 0 0 0 0 0 0
6 0 0 0 0 0 0 0 0
7 0 0 0 0 0 0 0 0
8 0 0 0 0 0 0 0 0
9 0 0 0 0 0 0 0 0
10 0 0 0 0 0 0 0 0
11 0 0 0 0 0 0 0 0
12 0 0 0 0 0 0 0 0
13 0 0 0 0 0 0 0 0
14 0 0 0 0 0 0 0 0
15 0 0 0 0 0 0 0 0
16 0 0 0 0 0 0 0 0
17 0 0 0 0 0 0 0 0
18 0 0 0 0 0 0 0 0
19 0 0 0 0 0 0 0 0
20 0 0 0 0 0 0 0 0
21 0 0 0 0 0 0 0 0
22 0 0 0 0 0 0 0 0
23 0 0 0 0 0 0 0 0
24 0 0 0 0 0 0 0 0
25 0 0 0 0 0 0 0 0
26 0 0 0 0 0 0 0 0
27 0 0 0 0 0 0 0 0
28 0 0 0 0 0 0 0 0
29 0 0 0 0 0 0 0 0
30 0 0 0 0 0 0 0 0
31 0 0 0 0 0 0 0 0
32 0 0 0 0 0 0 0 0
*** Program elapsed time: 2.078s ( 1499.910 blocks/s, 93.744 Mb/s)
Data synchronisation OK - see attachment
08.58 LJ informs me that second valve (LN2 refill cycle has closed)
No sync errors
13.53 DAQ stopped since PE16/R5 test this morning
Now observe sync errors cf.baseline but sync check OK - see attachments 10-17
14:10 DAQ Started Run 6 Attached screenshots of statistics for good events, sync, pause and resume (See
attachments 18-21)
14.15 PE16/R6
First beam from ZDS
A/q ~ 40/12
No fixed degrader
Variable degrader 1.8mm W + 3mm Al
Very low rate of heavy ions (~10/h ?) and 'light' particles |
|
|
538
|
Tue Mar 28 01:28:12 2017 |
TD, CG, OH, DK | Tuesday 28 March |
09.13 DAQ run R3 ends OK (final file R3_9)
ASIC settings 2017Mar27-16.12.39
slow comparator 100 (dec)
LEC/MEC fast comparator 255 (dec)
BNC PB-4 pulser OFF
09.20 Biases & leakage currents OK - see attachments 1 & 2
Ambient temperature +23.8 deg C, d.p. -3.5 deg C, RH 15.7%
Julabo FL11006 set point +20 deg C actual +20.0 deg C
09.32 FEE64 temperatures OK - see attachment 3
09.39 System-wide checks OK except
ADC calibration fails nnaida21 & 23
SYNC errors not counted since baseline
SYNC pulses received
see attachments 4-8
13.36 PE16/R1
Pulser walkthough
BNC PB-4 settings
Amplitude 90,000 - 10,000 @ 10,000 step
x5 attenuator IN
t_r 50ns, tau_d 50us
polarity -
rate ~250Hz
delay MIN, tail pulse
ASIC settings 2017Mar27-16.12.39
see attachment 9
13.52 PE16/R2
Pulser walkthough
BNC PB-4 settings
Amplitude 10,000 - 2,000 @ 2,000 step
see attachment 10
14.03 PE16/R3
Pulser walkthough
BNC PB-4 settings
Amplitude 2,000 - 8,000 @ 2,000 step, 10,000 - 50,000 @ 10,000 step
see attachment 11
20.30 System-wide checks
All OK *except* clock status - nnaida1 global clocks failed 6 - see attachment 12
20.35 PE16/R4
Background
BNC PB-4 OFF
ASIC settings 2017Mar27-16.12.39
MACB master mode 5 (external 50MHz clock from Tektronix AFG3102C)
20.40 Biases & leakage currents OK - see attachments 13 & 14
Ambient temperature +23.6 deg C, d.p. -3.2 deg C, RH 16.6%
Julabo FL11006 set point +20 deg C actual +20.0 deg C
FEE64 temperatures OK - see attachment 15
20.50 PE16/R4 ends OK |
|
|
537
|
Mon Mar 27 03:29:05 2017 |
OH, TD, DK, CG | Monday 27 March | 11:28 Biases and leakages okm (see attachment 1)
14:00 Removed jumpers on cooling rack D. Noise was around 50 channels worse (FWHM of pulser peak) for all
backside channels.
14:30 Jumpers back on cooling rack D.
16.45 Screenshots of layouts 1-4, 7-8 illustrating state of play
attachment 2 - FEE64 # 1-24 Rate
3 - " HitRate
4 - p+n 1.8.L
5 - n+n 1.8.L
6 & 7 - p+n 1.8.W
8 & 9 - n+n 1.8.W
17.30 Attachments 10-14 statistics good events, sync, pause, resume, correlation L
17.36 Attachment 15 - FEE64 temperatures OK |
|
|
536
|
Mon Mar 27 03:28:53 2017 |
DK, TD, JA | Clock settings at the waveform generator stage | Clock settings for this experiment are slightly different than in the previous case.
Below are strictly the settings for the waveform generator itself.
Sent to AIDA side: 0 to 5 V amplitude, 50 MHz frequency
Sent to BRIKEN side: 0 to 5 V amplitude, 25 MHz frequency
Thus, both teams are taking TTL-type signals. However, the BRIKEN one goes to the Philips module which essentially converts it straight away to NIM.
There may have been a slight misunderstanding yesterday about the setup, but finally the waveform signal going to BRIKEN was checked and there was no problem. So we don't make
any changes (e.g. changing the waveform generator to a NIM-type output). |
|
|
535
|
Sun Mar 26 03:53:43 2017 |
CG, OH | Sunday 26th March | 10.30 Left DAQ running overnight to look for alphas in DSSDs.
DSSD bias still ok @ 23.3oC (see att. 1).
FEE temps ok.
Slow and fast comparator thresholds set to 0x60 (~1Mev).
No obvious alphas (see att. 2+3).
11.00 Looked at waveforms and see long ripple (period ~10us) in a lot of the FEEs, e.g. nnaida15 in attachment 4. |
|
|
534
|
Thu Mar 23 10:56:29 2017 |
CG, OH | Thursday 23rd March - DSSD replacement + move |
10.00 Investigating DSSD2 (MSL BB18-1000 3058-9) missing channels, found broken bond wires on rear side (~1/4).
Replaced with 3058-3.
Stack order now:
| 3058-4
beam | 3058-3
| 2998-23
| 3058-5
| 3058-6
V 3058-7
12.00 All detectors, including the new replacement bias correctly (see att. 1).
14.00 Shunji has mentioned moving AIDA+BRIKEN forward by ~1m due to concerns about focusing the accurately at such a rearward position.
The afternoon was spent removing the EURICA rails to enable the push forward of AIDA+BRIKEN.
18.00 The DAQ was set running with the new detector included. All system checks passed apart from nnaida19 ADC calibration.
Pulser peak widths are mostly ~70-90ch for all FEEs. This is similar to Tuesday for the n-side FEEs (att. 2-4) and an improvement for the p-side FEEs (att. 5-7).
Having said that, some spectra show peaks with shoulders or tails and a few feature multiple discreet peaks.
We will look at this over the next couple of days, depending on when the final move/alignment of AIDA+BRIKEN is completed.
Complete table of pulser FWHM
nnaida# | Pulser FWHM (ch) | Comments
1 | 64 |
2 | 168 | Peak has shoulder
3 | 77 |
4 | 74 |
5 | 79 | Shoulder
6 | 86 | Shoulder
7 | 80 |
8 | 78 |
9 | 68 |
10 | 70 |
11 | 80 |
12 | 85 |
13 | 70 |
14 | 65 |
15 | 92 | Wide secondary peak in ASICs 1&4 of FWHM ~900ch @ 45k. Only few counts high (~1% height of pulser peak). Noise 10x height of pulser.
16 | 99 | Noise peak ~10x height of pulser peak.
17 | 70 | Low E tail.
18 | 75 |
19 | 96 |
20 | 83 |
21 | 68 | Additional peaks either side of pulser: approx. relative heights > (1/30) (1) (1/100)
22 | 69 |
23 | 108 | Noise peak ~10x height of pulser peak.
24 | 110 | Noise peak ~10x height of pulser peak. |
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533
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Tue Mar 21 08:04:43 2017 |
CG, OH | Tuesday 21 March - AIDA checks | 10.00 Powered system on and biased.
Bias voltages and leakage currents ok (see att. 1). Ambient temp @23.1oC.
14.00 Shunji wanted to do some checks with the LN2 fill.
Seems to perhaps be a problem with unshielded cables to the valve switches.
With control box, outlet valve and cables to all valves behind LN2 tank, AIDA survives LN2 fill.
Parts ordered to facilitate moving of components behind the LN2 tank, away from AIDA.
Will carry out further tests once these have been fitted.
17.00 FWHM seem reasonable and similar to Dec 2016.
n-side FEEs see average pulser FWHM of ~70-80ch. nnaida19 noticeably worse @ ~150ch. (att. 2+3)
p-side FEEs worse with average pulser FWHM of ~200ch. nnaida13 worst of these, showing non-Gaussian peaks
with widths @ ~300ch. (att. 4+5)
Will not attempt to solve this now as they must all be disconnected to sort problem with nnaida1. |
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532
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Thu Feb 2 13:44:02 2017 |
OH | T9 Test Bench | T9 test setup at Daresbury was powered up and noise levels were checked using a pulser peak.
A 1V peak was used. For most channels this corresponded to a peak position at around +-11000 from the zero point at 9000.
An example of this is shown in attachment 1 showing the peak in nnaider 11, ASIC 4, ADC 11.
It was also observed that for both nnaider 11 and 12 (FEE modules corresponding to negative signals) that channels 2, 56 and 59 were not contributing to the rate. See attachment 2.
Upon investigating the missing channels ADC spectra the only apparent issue appeared in nnaida 11 ASIC 4, ADC 8. Which is plot 4.7.L. Here we see the peak much higher coming in at around channel 63000. See attachment 3.
The remaining missing channels in the rate plot appear to have normal amplitudes with maybe slightly higher noise. FWHM of ~60 as oppposed to ~18. Discussed more below.
Also done was a noise measurement across the all the ASICs. To do this an ADC was chosen belonging to each of the ASICs and the pulser peak location and FWHM was recorded. The reaults are as shown below.
FEE# ASIC/ADC Centroid Location FWHM
11 1.8 42951 19.38
11 2.8 41012 17.48
11 3.8 41929 20.01
11 4.8 41302 17.88
12 1.8 41830 17.38
12 2.8 41119 16.01
12 3.8 42669 18.30
12 4.8 41811 15.21
13 1.8 24329 15.05
13 2.8 24034 13.64
13 3.8 24209 15.79
13 4.8 24607 13.29
14 1.8 24650 16.19
14 2.8 24618 14.12
14 3.8 23934 15.04
14 4.8 22584 14.36
14 4.8 22584 14.36
It was seen that the noise was fairly low which is to be expected as there were no dtectors connected and only a short length of kapton cables connected to the board. |
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531
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Wed Feb 1 16:54:40 2017 |
CG | NP1306 run summary | |
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