02.08 Tried updating AIDA SYNC on stats page and got this message.
See attachment 8
02.16 Runs R1201-1206 are short runs on the 1GeV, each wit the variable degrader thickness changed to alter the depth of implantation (estimated by visual scalar rates per DSSD)
Started 02.16 - 02.47
02.56 Started R1207 (EURICA run_1407, BigRIPS run 1192).
Settings file 2016Jun07-05.50.53. All nnaida back to 20MeV setting.
Temps ok. Leakage currents ok.
3.68mm variable degrader in + 19.3mm fixed degrader.
Operator stopped beam @ 03.41. Run stopped.
Merger outputting some info to terminal re. unexpected header found (attachment 3)
04:05 Beam is back, but some trouble to get AIDA DAQ happy
04:52 Started R1208 (EURICA run_1408, BigRIPS 1193)
Settings file 2016June07-02.50.53
From 5:05 to 5:20, F82a, and F51a (twice) trip. We reduced the F51a from -745 V; -735 V; to -720 V settings.
06:51 Continued with R1208_19 (EURICA has 1410 begin at 6:40, BigRIPS began 1195 at ~7:00)
Biases uploaded as attachments 4 and 5
7:13 data stopped going to disk
Shortly after that (7:15) operator calls to take control of the beam.
07.40 Beam returned. Some trouble restarting DAQ.
07.56 Run R1209 started.
Settings file 2016Jun07-02.50.53
No changes to settings or degraders. Temps ok. Leakage currents ok.
PPACs tripped repeatedly around 08.10.
09.13 Beam setting changed and run stopped.
11.25 Current status
Julabo FL11006 recirculating chiller set point +15.0deg C (B3F +24.6 deg C, dew point +10.3 deg C, RH 40.7%)
System-wide checks - all FEE64s pass all tests *except* nnaida19 which fails ASIC clock timestamp and SYNC errors not counting
i.e. status is unchanged
nnaida19 merge data link (#18) disabled - see attachment 12
nnaida19 ReSYNCs OK but timestamp is adrift of other FEE64s - see attachment 11
Detector biases & leakage currents - OK - see attachments 9-10
R1211 neutron-rich setting *tuning*
R1212 Prior to start of run, AIDA trigger rates (1GeV FSR MEC setting)
#1 670Hz, #2 820Hz, #3 680Hz, #4 540Hz, #5 900Hz, #6 440Hz F11 650Hz, beta trigger 360Hz
start 15.10
stop 15.41 (run stopped to reboot EURICA VME crate)
ASIC settings DB key 2016Jun07-02.50.53
4mm Be target
Degrader (17+1)mm + 1.08mm (17+1)mm fixed #1 out #2 out #3 in (1.08mm) #4 no change, cannot be observed
Trigger = OR ( DSSSD#1 - #6 ) .AND. EURICA .AND. .NOT.veto (plastic downstream AIDA)
R1213
N.B. EURICA offline due to fault with VME crate RIO3 interface card continue with AIDA+BigRIPS
start 15.05
stop 17.34 (beam lost)
ASIC settings DB key 2016Jun07-02.50.53
4mm Be target
Degrader (17+1)mm + 1.08mm (17+1)mm fixed #1 out #2 out #3 in (1.08mm) #4 no change, cannot be observed
Trigger = OR ( DSSSD#1 - #6 ) .AND. EURICA .AND. .NOT.veto (plastic downstream AIDA)
Attachments 20-28 1*H spectra, FEE64 'right' (n+n ohmic strip, 20GeV FSR energy spectra) & stat/rate hit patterns
17.40 Julabo FL11006 set point +15.0deg C B2F/F11 temp 25.3 deg C, dew point 11.0 deg C, RH 41.8% |