Daily Schedule

 Communications

- 1 PMT on the twr3 side top tile seems to be badly connected (very low PH) after the top tile was repositioned in its original location after albedo runs - might try fidgeting with the light guide to reestablish connection
- Lat-btserver crashed last night when opening a pdf file from confluence (Luca L). Lat-btserver has problems with windows manager, so please do not use it for open files that are not strictly connected to the DAQ. THe Monitor PCs now have a firefox link on the desktop that you can use to connect to the web (Johan).
Restart of btserver was fast,  but 2 mistakes affeted data until this morning:
- housekeeping was not turned ON, and only restarted this morning; data logger shows anyway normal values for T and rH
- ACD HV was not turned ON and only re-enabled today at 2PM; please alway look at ACD histograms in the online (even if they were supposed to be empty with a 90 degress beam....)
- Socket Gleam is alive! actually helped immediately with the issue of ACD HV because we saw reconstructed tracks pointing to the ACD tiles and saw not hits in the ACD distributions, so went to the HV control and found it to be off

Online&DAQ Report

 OfflineReport

- Tagger calibration and beam dispersion
- Berrie 

 Program

- p program completed:
- 5M p at 10GeV through MMS at 30 degrees on twr3 (runs 1369-1379)
- 5M p at 6GeV through MMS at 30 degrees (runs 1380-1391); 2.5M (runs 1388-1391) evts taken with ACD OFF (see above)
- 2.5M p at 10GeV at 90 degrees through log 3 (runs 1392-1397) - ACD OFF
- 2.5M p at 10GeV at 90 degrees through log 2 (runs 1398-1403) - ACD OFF
- 2M p at 6GeV at 90 degrees through log 2 (runs 1392-1397) - ACD OFF
- p at 6GeV at 90 degrees through log 2 with different beam rate to test pedestal drift vs readout  and particle rate - ACD OFF
- 500k p at 10GeV at 90 degrees through log 2 (run 1413) with ACD ON
- more investigations on pedestal drift dependance (increased LAC threshold) and p at 0 and 60 degrees in the afternoon
proposed list of new runs here 

 Notes 

- due to a stop from PS, tomorrow morning shift will start at 9AM

 Communications

- 1st positron annihilation program completed overnight; shooted 1M  e+ and 1M e- through MMS placed in front of ACD tiles; CU oriented at small angle to increase path length in tracker and benefit from good tracking to point tracks to MMS target. Analysis will rely on ACD efficiency to reject e+. Target placement done using a pb brick to shadow the beam and then replacing the brick with the MMS target
- switched to p this morning; MMS target placed between the beam and the CU, shooting beam in 2 positions: small angle through twr3 towards twr2, 90 degrees entering twr3; will collect 10M p for each position at 10 and 6 gev; program will go on until tomorrow

 Online&DAQ Report

working well at very high rate with p since this morning, 4KHz peak rate. Some errors appear but are known and under control (mainly FIFO full and parsing errors)

 OfflineReport

postponed to VRVS later; will have contributions on PSF (Claudia), E recon (Philippe), ACD cuts and positron runs (Philippe,Eric)

 Program

see above

 Notes 

new shift list until the end available on confluence; reduced to 2 people/shift to better support analysis now that running is stable 
meet at 6PM in this meeting room for VRVS together

 Communications

-Photon runs: completed position 1(0degree),2(30degree),3(50degree) both full brem and tagged with primary beam at 0.5,1,2.5GeV. currently taking events for position 2 in tagged mode with 1.75 gev primary beam to fully populate spectrum.
- position 4 for albedo (145 degree): tile 4 moved from top to side of cal 3; full-brem taken, 1gev primary beam tagged mode as well, 0.5 gev was too slow this morning (only 3 spills); will need to move tile 4 back to its original location prior to positron runs
- discussion for following photon runs: philippe request tagged mode, more configurations; energy spectrum can be sampled in a coarse way to the benefit of more configurations, as e recon studies are more sensitive to gemoetry (see bias from bill methos reported yesterday for example). Since photon runs in tagging mode are slower and benefit from 4th spill, Luca suggest we do them overnight and use the day for electron, proton, positrons; the only concern is that positrons require a setup that is not compatible with photon runs, so is must be scheduled properly

 Online&DAQ Report

all stable

 OfflineReport

-philippe (CAL): completed analysis of yesterday on energy resolution, results are confirmed on all the tagged photon runs; at 0 and 30 degress the parametric method has a significant bias, and the resolution is worse than MC. The likelihood method show smaller bias, therefore a systematic error from the tagger can be excluded. Require confirmation of the beam energy spread and tagger resoultion by tagger people
-berrie: pion contamination in photon data, from pile-up and cerenkov inefficinecy; photons conversion efficiency in the TKR show how layer 15 has a reduced number of vertices wrt to MC (pdf)
-Carmelo: layer 15 is known to have large number of bad strips, and looking back at e runs we realized that the spot we are hitting with photons at the center of tower 2 is actually a dead area ( 1 and 2); hard to see with photons but clear with electrons (and from old pisa data):
-eric (ACD): analysis of last night runs with photons at 145 degrees show some activity in tile 4, but the spectrum seems compatible with a beam halo; more investigation going on to correlate with info from tkr and cal

 Program

- discussion on positron setup; discussed implications of layer thickness (trade-off between annihilation probability and brem contamination), running with ancillary CAL in the DAQ to tag energy of positrons radiating bremstrahlung photons before hitting the target, setup (dump, veto scintillator, target). Agreed that we would make a simple test tonight, keep setup simple, run w/o ancillary and collect quickly 1M positron and 1M electrons shooting through the ACD tiles at approx 45 degree. We will then check for difference offline and look for 2 gamma events as positron annihilation signature.

 Notes 

 Communications

beam conditions very stable over the weekend, with 4th spill available; data taken with good efficiency

 Online&DAQ Report

 OfflineReport

- philippe: taggged photon spectrum has a whole around 650 MeV, would be nice to fill it with 1.5 or 1.75 gev primary beam tagged photons; compared different  energy recon algo for available data (not bruel methos as starts at 1gev): bill's method show a bias ranging from few to 10%; Pol method has a smaller bias but has a hard-coded limitation to 50 degress, therefore when this was realized some data were taken at 49 degrees (quicker than recompiling the code) so we have limited statistics (in the long run we just have to recompile the code and allow angle over 50).
- philippe: simulations going on to determine best impact point for position 4 (albedo): simulated 100,250,500,1000 mev photons and shooted in position 4 at each log: lower logs have more events (around 0.5%) that pass DC2 cuts for all energies, although behaviour is different for different energies; a position at around  log 7 would be the best trade-off

 Program

proceed with photons at least until tomorrow afternoon, then consider proton runs for the swing and owl shift; make sure the positron setup is defined before tomorrow and be ready to prepare it on tuesday to run tuesday night
- positron setup: gary calculated annihilation probability to be maximum at 500mev; 1gev beam is still reasonable (0.4% events) and the beam has a smaller beam spot; will need to build pb brick wall with a hole for the MMS target (or equivalent 1mm al) to stop beam halo (cannot trigger on a donward scintillator as that would increase bremstrahlung background - need some thinking. Luca: S3 is currently used as a veto on S2 light guide, would not like to move it

 Notes 

 Communications

- running smoothly since yesterday, 2 CU positions completed at 2.5Gev, both tagged and full bream photons, 2 position completed at 1GeV tagged, currently running tagged photons at 0.5GeV with CU at 0 angle; 3rd position tagged photon by tonight, 3rd position full-brem at 2.5GeV for the owl shift. Running with 4 spills per supercycle since 1.3PM
- dump position: last night understood that 1GeV beam and 0.5GeV  beam have larger divergence and some photons hit the dump; larger statistics for the 1Gev tagged photons was requested to compensate; the same was observed today with straight e in the CU, displaying a clear cut in the beam spot. The effect is larger with photons as the brem - induced divergence (scales as m/p)  adds to the larger e beam divergenve. We removed the last pb brick wall from the dump, increasing the dump-beam distance to 11cm still keeping the unradiated beam within 23cm Pb (>6 moliere radii) when the magnet is ON. Online monitor with full AD + CU data proved critical to get this info in real time
- discussion for definition of 4th CU position: current agreement is to simulate albedo gammas by shooting gammas at 145 degrees in the tower 3 CAL; the impact point would be half way in the CAL, as having gammas too close to the TKR would give too poor an energy resolution, while shooting from the bottom of the CAL side would result in very few events making their way to the TKR. Philippe is concerned that we also get some tagged gammas in such configuration to cross-check the energy as the CU energy measurement would be very poor; suggestions were made to evaluate the possibility of placing the ACD tile currently on top on the side of tower 3, to be able to run background rejection cuts similar to the LAT ones. Luca to evaluate time to move ACD tile and contact Bill and Steve to check if this position is ok, or they feel other configurations should come before.

 Online&DAQ Report

 OfflineReport

- Philippe presented plots from test sync runs with e which show how events with no energy in the cal point to the dump as measured by the 1st arm of the tagger
- Berrie showed plots from full-brem runs which have less conversion in the top and thick layers wrt to the MC

 Program

- agreed program here
- reduce shifters for owl to 2 for the next 3 nights as running full-brem is simple 

 Notes 

 Communications

- Running since this morning 9AM with 2 spills, 3 spills available since 2.30PM. Currently taking tagged photons from 1GeV e beam
- 60K evts of 2.5GeV e taken for reference after shutdown
- Sh became inefficient and empty events were triggering the si tagger; S3 is now isntalled as a veto over the S2 light-guide (Nicola M)
- verified feasibility of 500MeV beam: rate is ok but beam is larger, will have to verify if S3 veto is ok and final tagging rate
- CU position 2 defined as x=200, Y=0, Z=-48, angle = 30
 

 Online&DAQ Report

DAQ synchronization lost once, tagged photon run stopped and restarted with no event loss

 OfflineReport

- Philippe reported on analysis of tagger calibration runs, tagger energy resolution same as what measured and presented by Nicola yesterday; one of the analyzed runs appear as 1.12GeV e in the rcReport, while the actual energy was 1.125, Luca B believe there is an issue with trunctation which the database people should address at SLAC (Eduardo to check)
- Eric working on the setting of the VETO threshold for the ACD 

 Program

- agreed program here
- reduce shifters for owl to 2 for the next 3 nights as running full-brem is simple 

 Notes 

 Communications

  News from PS/PS Users Meeting:
-intervention on QED2 scheduled to end 5PM; spare was found to be not working, a second spare was available but needs to be equipped with a new vacuum chamber that will be taken from the 1st non good spare
- beam loss in the separation magnet between east hall south and north branch; currently this is the reason why we have no beam; if replacement of QED2 cures the loss we should get beam back tonight, otherwise a technical intervention will be required, and cooling time is 4 days minimum (currently the radiation level at the separation magnet is 2mSv)
- supercycle changes: agreed changes for next week so that we get 3 spills in east hall during working hours and 4 during night and week-ends; the fourth spill will come around 4 sec later that the first three. new changes wil be discussed for week 34 (check weekly schedule here)
- Luca to investigate on the possibilty of an extension with the MICE group which is supposed to run after GLAST 

 Online&DAQ Report

Ric confirms that agreed modifications on spill structure for next week will not hamper DAQ sync and data merge online

 OfflineReport

- Nicola reported on ancillary recon performance and tagger studies; taggeed electrons momentum resolution is 3.5% (beam+MS+tagger), better than expected. Current AD recon only available locally, working to make it available to everybody here w/o waiting pipeline to update; also speeding up release process and pipeline re-processing of tagged photon runs
- Monica B reported on preliminary studies of Tkr TOT
- Eric C reported on ACD calibrations; mapping of electronics is correct, geometry and recon in place but reconstructed tracks show small discrepancies with expected tiles positions (order 1 cm); MIP peak to determine VETO threshold relocated with CR after changing timing, tiles behave differently, will make sense to cross-check with beam (as done with Alex at the beginning of the run);
- Monica P reported that the last generated MC file has a BL=0.45 which is wrong; Luca B to udpate confluence with correct conversion plot for current vs bending power and tell Francesco

 Program

- agreed program (still) here
will have to rediscuss program again if intervention is required on separation magnet 

 Notes 

please provide Luca with updated presence of people at CERN to allow completion of shift list

 Communications

No beam since this morning at 9. CUrrent estimation is NO beam before tomorrow afternoon, shifts are suspended, we will restart tomorrow at 12 and update. 
Tagger calibration done. 2.5 GeV e beam used to collect 100K tagged gammas, 2M events full-brem gammas

 Online&DAQ Report

DAQ sync with AD ran smoothly since this morning at rates up to 1500 part/cycle, corresponsind to a peak rate of 1KHz (max is 2K), with a beam intensity of 60KHz

 OfflineReport

- Latency for full-brem runs is large due to caltuple merge, Luca to investigate with Francesco if pipeline can be coinfigured to link to merit and SVAC tuples before merging caltuple; the other option is to give up the CAL tuple (to be discussed with CAL people)
Offline monitor report (Claudia) - must transfer correct geometry in AD recon and check filling of si det of downstream tagger
Tagger calibration onnline report (Carmelo) - all is under control
Preliminary analysis of 1 full-brem run (Eduardo,Benoit PSF and Erecon, Gary)

 Program

- agreed program here

Notes 

 Communications

  Beam back from9. Standard beam with 3 spills from 11. Discovered that magnet settings were wrong and gave beam crossing cerenkov detectors therefore reducing e fraction and trigger efficiency. After loading the magnet settings file from Erik everything was fine and we could restart.
Tagger calibration program going on; usptream arm aligned with CU, BL scan in progress, dowstream arm to be aligned by tonight.

 Online&DAQ Report

DAQ sync with AD ran smoothly since this morning at rates up to 1500 part/cycle, corresponsind to a peak rate of 1KHz (max is 2K), with a beam intensity of 60KHz

 OfflineReport

-  Local Offline coordination  and daily reports: Claudia for TKR, Philippe for CAL, Eric C for ACD, Nicola M for ancillary and beam diagnostics

 Program

- Finish tagger calibration by tonight
- Collect 100K in tagging mode, CU at 0 angle, center of tower 2
-  Collect 2.4M evts in full-brem, CU at 0 angle, center of tower 2
See detailed program here

Notes 

   When changes to the beam line are to be made, please use the table provided here and not the table from EBCR

 Communications

UPS identified and ordered (3 UPS with 900W x 7min for DAQ PCs, 1 UPS with 450W x 7 min for 28V PS); should be delivered wednesday

 Online&DAQ Report

CU DAQ maximum readout rate with full error parsing in the code is 300Hz average, corresponding to 4KHz instantenous rate during the spill (our spill structure is 3 x 0.4s spills every 16 s). Indeed runs were taken with instantenous rates up to 2KHz. This max value will be checked with a random trigger generator (low threshold scintillator) and with the beam as soon as it gets back.
 Ric on TEM errors: come in a variety (TKR fifo full, phasing errors, parity errors ...); some are just fake errors connected to the so-called TEM-bug in the CU TEM (which are not flight). TKR fifo full errors probably connected to beam conditions producing showers in the last si det upstream the beam and before the CU (see also offline reports), in any case the almost full flags in the GTCC buffer was changed to 0X3E from 0x20 (from E Siskind) to allow for more hits in the tracker before back-pressure events and slow readout rate. Phasing errors found in 1 run only so far, so might be connected to wrong settings - a run with beam shooting across towers should be taken to check if phase errors appear in such conditions. In summary, if we keep trigger rate below 300Hz average we should run w/o errors and be limited by the AD DAQ deadtime (approx 1 ms)
DAQ sync: tested with external veto set to 3ms, which was set to avoid CU errors in the wrong assumption that the CU DAQ readout rate is limited to 300Hz instantaneous and not average ; need to retest it w/o such limitation and with the only veto given by the AD DAQ

 OfflineReport

- Francesco: acdrecon and adrecon in new BTRelease; bug fix in the svac ntuple to avoid overwriting first 1000 evts 
- Benoit reported on an anomalous high number of hits in run 811, but also in another run for which the si det al frame was not in the beam
- Philippe reported on a strange effect in the distribution of the transverse dimension of showers in the CAL for most e runs taken for CAL calibration (700-750), indicating 2 classes of events; he also reported on a raw energy distribution with 1% of the events exceeding the beam energy
- Claudia spotted an anomalous high number of tracks in the runs (700-724)
- Discussion: the above analysis and the online picture of the beam on the last si det indicate that the beam line is too congested and must be cleaned; the si det will be repositioned to remove the frame from the beam, and a subset of scintillators will be used for trigger (S3 will be removed, and after the beam is well understood we might rely on Sh in anticoincidence with S2 

 Progrm

- CU DAQ max readout rate test with random generated pulses
- DAQ sync w/o external 3ms veto
- no beam foreseen for the night, restart shifts from tomorrow morning 8AM 

Notes 

Action items
- Luca: provide shift task list, revise shift log and transfer paper logbook info in there for reference for everyone
- online: add an all-particle type selection in the DAQ GUI
- carmelo and eduardo: verify ACD mapping, ROI definition and ACD timing 

 Communications

 - POWER OUTAGE ON THE WHOLE CERN SITE SINCE 8AM - NO ESTIMATION ON POWER AND BEAM. After contacting the control room we decide to stop shifts until the power is back, and we meet at 8PM at T9 to check again with CR; if no changes happen we will meet again tomorrow at 8AM.
- Procedures for power back: even if chiller is not operational there are no issues with CU as gas is flowing and ambient temperature is below 30C. No danger for the CU when power comes back, just have to properly reset XY table before operaing. Experts will have to work on restart DAQs and network connection as soon as power comes back.
- First tagger arm aligned with beam, chambers orientation understood; 1 finger counter working, the other being fixed. Current scintillators installed are S0 (10x10), S1(finger), Sh (halo veto), S3 (10x10 before CU)

 Online&DAQ Report

- The external trigger signal delivered to the CU had a wrong TTL polarity, resulting in the CU being triggered on the falling edge of the trigger occuring 800ns later than the rising edge; this was corrected and the external trigger signal was aligned with trigger requests from TKR and CAL. New test of DAQ sync will have to be performed to verify if we can work at higher rate (200 evts/spill was the max stable rate tested so far)
- Owl shift: all ACD tiles hit by the beam (5 GeV pione) and MIP peaks aligned
- absence of CAL-HI trigger understood: bug in configuration file disabled CAL-HI, now cured and good FHE file loaded; CAL HI triggers seen in the data
- CU: Ric investigating phasing errors

 Offline Report

 Francesco:
-  recon runs  resubmitted, few runs still fail at different pipeline stages
(@ digi for corrupted events?; @recon for  G4 stuck; @svac to be investigated)
- new BTRelease installed on local PCs 
Claudia: 
- latest fixes to offline monitor, waiting to test with last night data as soon as power is back

 Program

- Carmelo and Sandro working on the online monitor to align and calibrate the tagger
- define trigger configurations
- CAL runs with e
- Tagger calibration
- provide instruction for shifters to post on confluence (CU DAQ, AD DAQ, trigger setup, offline distributions to monitor) and in the barrack

Notes 

- people are invited to start looking at data offline and  report
- from monday will have 30hour for the daily reports and 30min for offline report

 Communications

 - Magnet failure: MNP17 colling system failure at 1AM stopped data taking for several hours but no damage on hardware. Physics restarted after 2 hours w/o silicon tagger for CAL calibrations. Magnet repaired in the morning
- CU cooling system changes: CU/ISC cooling coil in the ISC base plate leaked: it was emptied and is now non available, we will rely on top cooling coil as no intervention is possible; the chiller was moved closer to the ISC to minimize thermalization of coolant with ambient through thermal exchange with the zone air, now chiller more efficient;  fan added to cool XY table motors. Please look at the temperature during your shift

 Online Report

 - DAQ sync studies going on
- CU: Ric investigating phasing errors

 Offline Report

 Francesco:
- pipeline  nicely running
- 1st 1000 evetns in SVAC ntuple duplicated  
Claudia: 
- offline monitor requires script to parse rcReport info and link to MC files (Navid working on that)
- MC and CU cooprdinate systems mismatch (check with Philippe) 
Dave:
- no CAL-HI triggers in last night data as  fhe values were saturated

 Program

 - Complete DAQ sync studies
- perform CU timing studies to optimize TACK (timing/script vs ext trigger manual delay)
- explore beam conditions 
- ACD calibrations (ideally 5gev p, if NA 5gev e) 
- CAL runs with e (Benoit)
- Tagger calibration start on 29 morning

Notes 

 - Fill elogbook
- Take your shifts and launch runs yourself 
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="cc6b980f-db57-4dd1-95db-f69aa916df4d"><ac:plain-text-body><![CDATA[- rcReport has wrong table positions for runs [701-736]; the right correlation table between position and run will be circulated. Please reset runcontrol before starting a new run when you change conditions (table position, beam configuration, trigger, CU conf)

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