A. Cappati, M. Pelliccioni
Plan: data taking with positron beam @ 45 GeV, 2cm C target
Inherited run #500680 with positron beam on 2cm C target
Access to increase HV PS of scintillators S4 and S5 (from 1400 to 1600)
Start run #500681 with positron beam on 2cm C target
Access to increase HV PS of scintillators S4 and S5 (from 1600 to 1700)
Start run #500682 with positron beam on 2cm C target
A. Bertolin, F. Collamati
Plan: data taking with positron beam @ 45 GeV, conclude 6cm C target and move to 2cm before doing some tests for DT
Completed run with 6cm C target, then moved to 2cm.
O. BLANCO, B. KIANI
Plan: data taking with positron beam @ 45 GeV and C target
Inherited run #500672 (run of 45GeV positrons on C target [3 C discs])
00:00 The DT acquisition was found blocked, therefore, run #500672 #520 was stopped.
DT acquisition recovered. Started run #500673 #523.
NOTES : We have now two spills per every 43.2 seconds, which is twice what we had this afternoon.
There are around 2E6 to 3E6 triggers in S1(positrons) and about 40 "good triggers" per spill with the current trigger config "GOLD+S1".
Around 12000 events per two hour are collected.
03:20 Rate of spills increased to two in 28.8 sec. The S1 rate is 1E6~3E6
04:00 Spill Rate reduced to one every 37 sec.
04:50 Spill rate back to two spills in 28.8 sec.
06:13 SAHV of the PMT module lost connection. The program was closed and reopened, and it seems to work normally. Acquisition WAS NOT stopped.
06:28 It was found that "Event Number"_new = "Event Number"_old + "Good Triggers" - 1. Is this an error ?
A. Cappati, G. Cotto
Plan: take data with positron beam @45 GeV with C target
Inherited run #500671 from previous shift (first run of 45GeV positrons on C target [3 C discs])
19:20 no beam due to PSB problems, run #500671 stopped
Started run #500672 (run of 45GeV positrons on C target [3 C discs])
N. Bartosik, C. Curatolo
Plan: take data with positron beam @46.5 GeV with Be target & take data with positron beam @45 GeV with C target
Inherited run #500664 from previous shift (first run of 46.5GeV positrons)~ 60 k Events done
started run #500665 (second run of 46.5GeV positrons)
10:20 no beam for PS intervention, run stopped
access to check palette position and restart pc HV DT
started run #500669 (second run of 46.5GeV positrons)~ 45 k Events done
Berillium target removed, grafite target placed
started run #500671 (first run of 45GeV positrons on C target)
Shift Crew
M. Casarsa, F. Collamati
Inherited run #500662 from previous shift, taking second run of 49GeV positrons
Run interrupted for ~2h due to beam loss due to "power glitch". When it came back we completed the full statistics for 49GeV, and moved to 46.5GeV
Keeping this rate the target change should be performed around lunch time
Shift Crew
B. Kiani, D. Lucchesi
Data with positron beam @45 GeV (with target) for 2 hours then move to E=49 GeV
Runs Muon 508 Silicon 500660
Data with E=49 GeV
Run# Muon 509 Silicon#500661 ~ 60 k Events
Run# Muon 510 Silicon#500662
Mattia Soldani, Camilla Curatolo
Plan: take data with positron beam @45 GeV (with target)
Inherited run 500650/503 from previous shift. Plan is to continue to take data with this configuration.
09:05 reached 60000 events run stopped
09:27 new run with Gold
10:08 new run with gold+s1d
12:02 DAQ DT stack
12:05 new run with gold+s1d
14:40 run stopped to check lead glass cabling (ok!)
Inherited run 500648/501 from previous shift. We expect rate to be increased overnight. Plan is to continue to take data with this configuration.
Donatella Lucchesi, Massimo Casarsa
Plan: take data with positron beam @45 GeV (with target)
15:00 : No beam
15:30: beam is back. Data taking with Gold+S1D trigger Run numbers: Muon 499, Silicon 500644
16:14: MKP tripped no beam. Stop the run.
16:18 Beam is back, Muon run 500 Silicon 500645. Trigger Gold+S1D
16:27 Nikos called, he wants to adjust the beam therefore we stop the run. He will call back when is ready.
17:00 Nikos called back, beam has been cleaned. Right now no beam until 18:00 due to access in PSB.
19:40 start run 501/500648. Trigger Gold+S1D
20:51 beam is now OK. Nikos will increase the intensity when will be back from dinner, probably around midnight.
Francesco Collamati, Camilla Curatolo
Plan: take data with positron beam @45 GeV (with target)
08:20 no beam problems in PS, run stopped 10149 events
09:41 start run
10:50 no beam, run stopped 4754 events
Alessandro Bertolin, Fabio Anulli
Plan: take data with positron beam @45 GeV
Status: no beam
23:40 we decide to remove the target and take one run without the target to check the beam spot and the halo around the trigger on the C0 silicon tracker (detector ID 30)
23:50 beam back, we start the run 500635/491: e+ 45 GeV, no target
00:10 run ended. We go back inside to reinstall the target.
00:15 start run 500636/492: e+ 45 GeV, physics
1:30 Beam lost, run stopped 9321 eventi
4:00 still waiting for beam
5:55 beam back! starting run 500637/493: e+ 45 GeV, physics
Roberto Rossin, ...
Plan: take mu alignment data and e+ calibration data. Then start w/ e+ 45GeV physics runs w/ Be target.
Took muon data @ +/-32GeV. Muon peak position marginal on the chambers.
Took muon data @+30GeV. Muon peak still marginal.
16:10 control room called. Marco suggested to go ahead w/ e+ runs.
Took e+ runs (500611 and 500612) with magnet @ +/- 830A (Saleve/Jura) for silicon alignment.
Silicon access to realign:
Energy scan with e+ for Calorimeter calibration. E_beam in [16,18,20,22,24,26,28]GeV
Access at 21:16 to insert the Be target.
Loading e+@45GeV configuration file. Some magnet configuration issues (we had to reset by hand the currents in 2 dipole magnets). QUAD.021.447 readout -39.3, reference -39.643.
Taking data with GOLD+S1D 489/500633. Run stopped to mask a 2 hot channels on the border of the muon chambers.
Taking data with GOLD+S1D 490/500634. Beam lost after 3755 events.
Plan: take data with muons at different energies. Night shift did the 22 GeV point, next one on the list is the 26 GeV.
End of shift: we did 26 GeV with both magnet signs, leaving run 463/500604 to the next shift
Fabio Anulli, Mattia Soldani
Waiting for beam...
22:30 The problem with the MBPL dipole has been solved. The crew that worked today did not opened the water cooling, so we were roasting the magnet...
00:30 the trigger with the triple coincidence counts too low. We made several tests, changing beam energies and magnet current sign. No significant changes.
1:40 problem found: the beam on command was not enable => ~1:30 hours of reasonable beam lost... :(
Note: the S1 signal is now given by the coincidence of the scintillator fingers in front to T1 and T2 (it was one of the tests we made).
All short runs taken in this hour must be discarded.
3:45 taken all runs with 22 GeV beam (trigger S1, and tripla, both field polarities).
3:50 Beam lost during last run. It will be 20 minutes with no beam.
Move to 26 GeV when beam will be back
5:30 No beam for another hour at least
Completing installation. Beams expected soon.
Plan: take data with muons at different energies for muon chambers and calo's calibration until tomorrow morning. Then switch to e+/e- for tracking alignment.
Energies requested for the muon beams: 18, 20, 22, 24, 26, 28, 30 and 32 GeV
14:50 There is a problem with transmission of event ID to the muon chamber. Erik is working on that.
Check for safety clearance will happen around 3:00pm.
Then, we'll close and patrol the area and move to "controlled access".
S. Yan Hoh, M. Iafrati
Waiting for beam
N. Amapane, F. Collamati
No beam. Abandon ship at 01:00
M. Rotondo, D. Lucchesi
Calibration with muon beams at different energies:
muon chambers occupancy and rate
calorimeter mip equalization
Silicon alignment in the target region with electron/positron beams
9:00 AM: Start run xxx with muon only, 22GeV muon chambers on DAQ Silincon off. Working in progress with digitizer
9:58 AM: Nikos is preparing the configuration files for muon beams
12:00 AM: run at 22 GeV of muons, all detectors are on and they seem working; beam spot size at C1 is about 5x5 cm^2
A. Cappati, O. Blanco
Beam at low intensity up to 19h
15h00 continue run of electrons at 22 GeV
16h00 muon run started : silicon 500275, mu 259
18h20 optics changed to mu+ 18GeV , MBPL magnet current 850A
~17h00 There was a change on the optics file from 18GeV to 26GeV by Mikos, probably towards the end of the run 262.
17h20 We move back to the 22GeV optics, MBPL magnet current 580A
20h49 Beam quality test with positrons at 45 GeV, magnet current 580A
M. Iafrati, G. Ballerini
Calibration with positrons at 45 GeV :
-> allinment of the dectors upstream the magnet
-> current in the magnet I_b = 0 for the leadglass-gg - gamma gamma calibration at 45GeV
Calibration with positrons at 28 GeV
Calibration with positrons at 26 GeV
Calibration with positrons at 24 GeV
Calibration with positrons at 22 GeV
Calibration with positrons at 20 GeV
Calibration with positrons at 18 GeV
Calibration with positrons at 16 GeV
All the calibrations are going to be performed using +580A, 0A, -580A in the magnet
Beam mostly stable, few minutes lower intensity/beam missing at 03:40
Calibrations started at 00:22, ended at 04:30
Target installed at 05:00
Drop in the count rate not depending from the target, no beam -> try to load the 26GeV
XCHV.021.386 / XCSH.021.429 cannot reach the reference level -5 -> the fist is stucked at -15, the second at -40
try to load the 22GeV conf. file -> XCHV.021.386 / XCSH.021.429 are now working
TAXs were on the beam LoF -> problem solved
06:51 target installed again on the beam line
F. Collamati, M. Soldani
After positioning of the Be target, 45 GeV Physics runs!
The shift started right after the first positioning of the Be target, after which there was a problem with the beam. The 45GeV beam file was corrupted, a manual fix was attempted in the night but leading to a strange beam (low intensity, low Y positioning).
8h30: Tried to reach a better alignment for T1 S1 T2, before knowing it was fake beams' fault.
10h50 Solved problem with optics file for positrons at 45 GeV, spill now has about 1e6 events per spill
11h20: New alignment of T1 S1 and T2 for 45 GeV beam (see above). New positioning of target on proper holding structure, "definitive"
13h50: Started new beam, but stopped since in chamber acquisiton there is a bit that is always on, thus saturating the acq
F. Anulli, C. Curatolo
data taking
12:30 decided to change trigger inserting a large scintillator paddle behind the iron shielding on the Jura (negative tracks) side. The exact location is between the two muon chamber planes on that side.
The idea is to reduce the trigger rate to minimize the data acquisition deadtime. The trigger wil be given by the coincidence: S1*JURA*SALEVE*PALA (where PALA is the new scintillator).
To estimate the incident beam flux, an additional trigger line with the prescaled S1 signal will also be added.
Waiting for people to fix the silicon run number bits.
taking data with silicon only to study trigger rate
trigger S1*JURA*SALEVE
15:30 --> run 500362 stopped, silicon people working on new trigger
15:30 work to prepare the new trigger is ongoing
18:00 the new trigger is in time.
The presacle factor for S1 is 32768
19:00 start physics run number 500370 trigger S1*JURA*SALEVE*PALA+S1D (4 scintillator AND with S1prescaled in OR, that means: if there's 4 scintillators in AND we take it otherwise we take S1 prescaled)
22:30 stop run 56109 events
22:58 start run 312
A. Bertolin, S. Yan Hoh
take data
inherited run 500371 / 312, stopped on purpose
HV lead glass 3 set to 1150 V to avoid PM saturation
started run 500372 / 313, stopped on purpose
HV lead glass 3 set to 1100 V to avoid PM saturation
500373 / 314 stopped by mistake by experts
500374 / 315 promptly restared stopped after 1 hour
500375 / 316 restarted with HV lead glass 3 set at 1000 V
at 2:55 noticed the DT DAQ was not running, rate was not updating and little spinning wheel (/\/\) was not updating
tried to ctrl-C + restart gave an error + no rate
called Marco, wait a call back
beam stopped, Marco and Alessandro enters, Marco restart the DAQ from the performing expert operations, DAQ fine
asked beam back, DT DAQ restarted from the control room, rate fine
then DAQ DT failed again ... the computer is rebboting itself without any apparent reason ... several short runs started ...
started again a new run, 500377 / 324
O. Blanco, M. Pelliccioni
data taking
Inherited run 500377/324 from previous shift. Stopped to reset eventID.
07h Run 325/500378 started. Run stops because DT PC blocked during acquisition.
DT PC connection restarted.
New run 326/500380 started ! DT PC disk is already at 75% of maximum capacity. Stopped to take pedestals.
10:40 New run 327/500385 started
11h14 Beam stop. Run stop.
11:30 Target moved down to miss the beam. Taking run 328/500386 without target
11:50 Taking run 329/500387 without target and with trigger S1*Saleve
12:05 Data acquisition stop because of tests with the triggers.
M. Antonelli, G. Ballerini
data taking
15:35 45 GeV target in, run 331/500404 trigger S1*Saleve*Jura*pala+S1D
16:20 as above
17:11 Run stop and Beam stop to change position of the scintillator "la paletta"
17:28 Start data run 333/500406
18:46 Start data run 334/500407
20:01 Start data run 335/500408
20:40 Start data run 336/500409
21:53 Start data run 337/500410
F. Anulli, M. Soldani
data taking with standard configuration for physics (default trigger: S1*Saleve*Jura*pala+S1D )
22:50 pedestal run 500411
23:00 start Run 338/500412
1:20 stop Run because of DT DAQ disk is full (Marco called in). Not clear when chambers stopped taking data during the Run: to be checked offline.
Instructed by Marco to cancel the runs after they are copied to the storage disk.
==> shifters _must_ look also at the DAQ disk usage and check which runs can be deleted
1:25 start Run 339/500413
1:40 beam stopped (RF problems, experts checking) we keep the run going on for now
2:35 beam back
3:50 start Run 340/500414
5:20 DT DAQ lost connection (in the last half hour). => stop run and restart DAQ (though instruction do not look fully correct)
5:35 start run 343/500415
6:40 start run 344/500416
S. Yan Hoh, M. Pelliccioni
Take data!
Inherited run 344/500416 from previous shift. Stopped at 7:25 for a pedestal run
7:35 Run 345/500421 started. Stopped for maximum event almost reached
8:25 Run 346/500422 started.
8.15-8:30 Gas bottle for Drift tubes changed
9:20 We noticed no triggers were arriving. Magnet fault. Stopped run 346/500422. ALL DATA after 9:16 for this run should be discarded.
9:53 Magnet fixed. Started run 347/500424.
10:18 Linac down, stopped the run. 2 hours downtime expected
12:40 Started run 349/500426
13:15 Started run 351/500429
14:45 Stop run 351/500429 because reached 60K of events
14:50 Start run 352/500430 Same configuration S1*Saleve*Jura*pala+S1D
Scrutinized Si detector Run:
Run500414
Run500421
Run500422
D. Lucchesi M. Antonelli
Take data at different energies: 46.5 GeV and 44. 5 GeV.
Start with 46.5GeV
15:00 Inherit run 352/500430
Keep under control the disk space of muon DAQ!
16:00 Stop run 352/500430 because reached the max number of events
16:10 changed the beam configuration positron E=46.5Gev Started run 353/500431
17:15 stop run because PS, vacum issue more news ASAP
19:40 BAD, BAD news: no beam until Wed morning.....
---- GAME OVER ----
Dismounting - at 4pm the area was free.
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