Linda R. Coney – 24th April 2009 Online Reconstruction & a little about Online Monitoring Linda R. Coney 18 August, 2009

Linda R. Coney – 18 August 2009 MICE Online  So far: u DAQ front end u Trigger u Event Building u Controls and Monitoring  Given that we are successfully running the experiment and creating data u How do we know the equipment is working well? u How do we check the data quality?  Two levels of real-time data quality checks u Online Monitoring s Look at raw data for each board in the DAQ s No translation into physical quantities u Online Reconstruction s Initial look at analysis variables and detector information with geometry  Next: see Data Flow MICE notes 252 & 255

Linda R. Coney – 18 August 2009 Online Monitoring

Linda R. Coney – 18 August 2009 Online Monitoring  Run unpacker on DATE data u Fill plots for each type of board s No geography information s No reconstruction s Boards have ID# but no information on what channel it is u Fill online monitoring histograms in real time while taking data u Use to debug operations u Provides data quality check u Provide graphical interface to display plots  There are 3 overall types of plots because there are 3 types of board u FADCs u Scalar u TDCs

Linda R. Coney – 18 August 2009 Online Monitoring Histograms  Example of monitoring plots from data run in November08  Preset histograms  TOF position info, Scalars

Linda R. Coney – 18 August 2009 Online Monitoring Actions  DAQ DATE Readout is finished   Create framework for decoding data   Implement unpacking for TOF, CKOV, KL   Test data readout, unpacking, and monitoring with real-time data   Include unpacking with G4MICE   Create online monitoring plots for TOF, CKOV   Upgrade FADC firmware (7/09)  u Will decrease size of data  Modify FADC monitoring plots (7/09)  Implement unpacking for Tracker (08/09)  Create online monitoring plots for KL,Tracker, EMR (9/09, 2010)  Implement unpacking for EMR (2009)

Linda R. Coney – 18 August 2009 Online Reconstruction

Linda R. Coney – 18 August 2009 Online Reconstruction  G4MICE uses the unpacker to look at data from DATE  It then converts the raw data into information with physical meaning  Goal: u Provide a fixed set of histograms to be filled during data taking u These histograms will contain quantities that can give information about the physics happening – a first look at analysis quantities u Provides another data quality check s Are we taking the data we think we are? s Are the detectors & beam behaving as planned? u Provide graphical interface to display plots u Provide comparison plots for shifters  Not meant to be final results  Collaboration chooses list of useful histograms u Preliminary list follows

Linda R. Coney – 18 August 2009 MICE Schedule 

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  Step I  TOF u # planes hit/event u # slabs hit/event u Pulse heights u Distribution in x, y across TOF0, TOF1, TOF2  2D x vs y  gives shape of beam u Reconstructed time-of-flight  Momentum if assume  etc u dt (plane 1 vs plane2) in TOF0, TOF1, TOF2  2D x vs y  gives shape of beam u RF phase calculated vs absolute time in spill  CKOV u Light yield in CKOVA and in CKOVB u Construct some CKOV measure using the two CKOVs  KL ???  PID determination u CKOV A B light yield vs TOF u TOF vs PTracker u Check x,y in TOF1 vs x,y in the tracker at input and similarly at the other end of the channel for TOF2 and tracker2

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  Step II & Beyond  Tracker(s) u # planes hit/event u # stations hit u Pulse heights u # points used in online reconstruction u Muon p x, p y, p z, p T, p at the 2 tracker reference planes u x,x’, y,y’ u 1D, 2D plots of position at 2 tracker reference planes u Light yield distributions for each station  PID determination u CKOV A B light yield vs TOF u TOF vs PTracker u Check x,y in TOF1 vs x,y in Tracker1 at input and same for TOF2 and exit of Tracker2  Beam emittance, amplitude u MICE Step III and IV – energy in Tracker1 vs energy in Tracker2 and DE u MICE Step V and VI s DE vs RF phase s DE vs absolute time  EMR ???

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  Step II & Beyond  Input welcome on desired plots….

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  What is needed to produce these plots?  Online Reconstruction farm  G4MICE installed on farm  TOF reconstruction  CKOV reconstruction  Tracker reconstruction  KL reconstruction  EMR reconstruction  Calibration for all detectors  Unpacking code for each detector  Check that G4MICE uses unpacker in a same way that Online Monitoring uses unpacker

Linda R. Coney – 18 August 2009 Current Status of Reconstruction  TOF Reconstruction and calibration well underway  CKOV reco same  Tracker reconstruction works

Linda R. Coney – 18 August 2009 Online Reconstruction Farm  Installed two farm computers in MICE control room March 09  Total of three quad-core processors  G4MICE installed on both  Tests run u Reconstructed tracker cosmic ray test data s 114 events/second u Ran simulation, digitization, and reconstruction of Step VI s Simulation: ~262 events/second s Simulation + Digi: ~236 events/second s Reconstruction: ~1920 events/second

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  What is needed to produce these plots?  Online Reconstruction farm   G4MICE installed on farm   TOF reconstruction   CKOV reco   Tracker reco   KL reco ??  EMR reco  Unpacking code for each detector u TOF, CKOV, GVA, KL  u Trackers, EMR (08/09, late 2009)  Check that G4MICE uses unpacker in same way that Online Monitoring uses unpacker u Can produce online monitoring plots with G4MICE  u Testing under way to compare to standard Online Monitoring plots (08/09)

Linda R. Coney – 18 August 2009 Online Reconstruction Histograms  What is needed to produce these plots for Step I?  TOF reconstruction  CKOV reco  Tracker reco   KL reco  Questions: u Which reconstruction to use? u What is current status of reco for each detector? u Only code in official tested release used in Online Reco s If you have personal reconstruction code – needs to go through software group to be included/used. u Which calibration to use? Who does the calibration?

Linda R. Coney – 18 August 2009 Conclusions  Now: u Read out and decode DATE DAQ from MICE beam data u Monitor Step I raw data quality and detector performance with Online Monitoring u Reconstruct TOF, CKOV, Tracker data  Next: u Implement online reconstruction for Step I u Goal to see first plots w/in 2 weeks time s Can practice with old data s Start with TOFs and CKOV u Gather requests for Online Reco plots  Eventually: u Include necessary information for further steps u Routinely have shifters monitoring detectors and MICE physics in MLCR