CLAS12 CalCom Status Update CLAS Collaboration Meeting November 14, 2014

Outline Commissioning-with-beam plan: – new document and review Calibration tools development: – Calibration development guidelines – Development status – Timeline CLAS12 Software Review, 11/7/2014Calibration Software Development and Status2

CLAS12 Commissioning Plan CLAS12 Software Review, 11/7/2014Calibration Software Development and Status3 New version released in June 2014

CLAS12 Commissioning- with-beam Plan CLAS12 Software Review, 11/7/2014Calibration Software Development and Status4  Five phases: – Functionality test – Luminosity scans – Special runs for detector alignment – Energy and magnetic field scans – Detector calibration and performance studies  Timeline  Specific procedure for each CLAS12 sub-detectors  es/e/ee/Commissioning-with- beam_ pdf  New document presenting the commissioning-with-beam plan available

Commissioning Plan Review  Review of the commissioning-with-beam plan scheduled for January 15, 2015  Review panel: -Elton Smith – Hall D (chair) -Glenn Young - JLab -Lars Schmitt - PANDA -Stepan Stepanyan – Hall B  Review Charge: -Is the commissioning with beam plan for CLAS12 sufficiently developed in order to ensure that upon completion the detector system will be ready for production beam running? -Is the commissioning with beam plan timeline, both in terms of durations of each study and order of operations, reasonable and optimized? -Are that studies or tests that have not been specifically included in the commissioning with beam plan that should be added? -… CLAS12 Software Review, 11/7/2014Calibration Software Development and Status5

Calibration Development Guidelines Algorithms: – import existing algorithms developed for CLAS and adapt/evolve them to CLAS12 – develop new algorithms for new detectors Software: – develop software suites with the help/supervision of the software group – use common software tools for data I/O, CCDB I/O, GUIs, Geometry, histogramming – use developed suites as templates for other detector systems – shares suites among similar detectors systems (time of flight, Cerenkov counters, MicroMegas trackers) Test and Validation: – test software on old CLAS data, new commissioning data (pulser, cosmic, …) or simulations – compare new software with old CLAS software results CLAS12 Software Review, 11/7/2014Calibration Software Development and Status6

Development Status  EC-PCAL: update of existing CLAS algorithms to include new PCAL detector using CLAS legacy code adapted for online running  FTOF: new calibration suite under development based on existing CLAS algorithms being tested on commissioning data and old CLAS data and validated against legacy code  DC: new calibration suite will be developed based on CLAS algorithms and software; work planned for 2015  HTCC-LTCC: development of joint calibration suite based on CLAS Cerenkov tools  FT:algorithms under development, FT-Cal cosmic ray calibration tool being developed using software common tools  SVT: new calibration suite under development based on expert’s input and being used for detector commissioning  MM:algorithms based on detector group experience with similar detector; software implementation in 2015  CTOF: will be integrated with FTOF in a “time-of-flight” calibration suite  CND: algorithms in place; will be integrated together with FTOF and CTOF in a “time-of-flight” calibration suite CLAS12 Software Review, 11/7/2014Calibration Software Development and Status7

EC-PCAL Energy Calibrations CLAS12 Software Review, 11/7/2014Calibration Software Development and Status8 MIP Calibration ONLINE Cosmic muons Dalitz / multiplicity software filter Complete calibration in hours OFFLINE Physics data (pions p > 0.5 GeV/c) Monitor PMT gains using E/p Use to cross-check muon calibration Trigger Requirements Energy / cluster reconstruction in frontend trigger for e- Uniform spatial trigger response for well defined e- energy threshold Calibration Requirements Determination of PMT gain, pedestal and attenuation constants EC/PCAL relative geometry for precise energy cluster matching Software Requirements Data filtering necessary to isolate suitable events for calibration (pixel cuts) Interface to calib. / geom. databases and hardware controls (HV, thresholds, trigger firmware) Monitoring of time drift of calibration constants and correlation with luminosity Diagnostic output (histograms, 2D plots, single event displays, strip-charts)

EC-PCAL Calibration Status CLAS12 Software Review, 11/7/2014Calibration Software Development and Status9  Level 3 data servers run in each front-end ROC / sector. Used to pre-filter raw data for more efficient analysis.  Legacy calibration kumacs used since Most Fortran code has been moved to Level 3 C code. guipcal.cc fcsed. c fcSED.kumac  Standalone utility programs and scripts used to identify elements of detector operation that can affect calibration: occupancy, mis-cabling, noisy channels, geometrical alignment.  Global plots show overall response of detector: timing, pulse-shape, pulse- height, spatial distribution of light response.

EC-PCAL Calibration Performance Gain matching and attenuation corrections crucial to trigger functionality and performance of calorimeters. For CLAS12, matching of EC and PCAL energy response demands consistency of approach. Algorithms tuned from nearly 20 years experience with EC. CLAS12 Software Review, 11/7/2014Calibration Software Development and Status10

EC-PCAL Calibration Future CLAS12 Software Review, 11/7/2014Calibration Software Development and Status11 CLAS 12 Online Calibration Histogram Service Calibration Service HV Service CALDB Service Online Monitor Service Archive Service Archive Service PCAL FTOF CTOF EC LTCC HTCC ET Service Data Filter Event Builder Service Cosmic triggers Physics triggers Migration from expert scripts to user-friendly GUIs will evolve as online DAQ framework is defined (CLARA / JAVA or C/C++) -GUIs derived from FTOF, SVT, or CED -JAVA services not currently used in Hall B online monitoring - this may change Work to validate EC+PCAL joint calibration will continue -Effect of dead spaces between modules and different photoelectron yields on resolution -Cosmic muon simulated response

Cerenkov Calibration CLAS12 Software Review, 11/7/2014Calibration Software Development and Status12 CLAS Calibrations:  HV Matching  Pedestals  SPE calibration  CALDB I/O  ROOT Output CLAS12 Calibrations  HTCC and LTCC  HV Matching  SPE analysis  CCDB I/O  CAEN SY4527 HV I/O  ROOT Output Status GUI started Can talk with CCDB Working on CAEN I/O Starting actual FADC acquisition, HTCC and LTCC calibrations

FT Calibration FT-Cal cosmic ray calibration What: first step of FT-Cal calibration and commissioning Why: determine charge-to- energy conversion factors and initial energy calibration of the 332 PbWO crystals When: after completion of the FT-Cal assembly in Spring 2015 Now: develop software tool and test in simulated data CLAS12 Software Review, 11/7/2014Calibration Software Development and Status13 GEMC visualization of a muon going through the calorimeter

FT Calibration Use EVIO-Root interface to read evio banks from simulated event file Select events with muons crossing a “column” of crystals to reduce angular spread For each crystal build ADC spectrum Fit with Landau + Exponential function to determine the MIPs peak position Build text file for loading into CCDB CLAS12 Software Review, 11/7/2014Calibration Software Development and Status14 Top-Right quadrant of FT PbWO calorimeter X Y

Calibration Development Timeline CLAS12 Software Review, 11/7/2014Calibration Software Development and Status15 Algorithm SoftwareTest

Summary CLAS12 calibration software is being developed under the supervision of the CalCom and Software groups Software development is based on: – Exploitation of pre-existing algorithms – Optimization of resources by calibration suite sharing – Use of common software tools – Test using CLAS, simulation, and commissioning data with comparison to old CLAS calibration results Software development was started in 2014 and is planned to be completed within 2015 – Improve standardization of calibration suites, for better exploitation of resources and simpler use – Develop detailed documentation for suite maintenance and usage – Define benchmark data set to exercise calibration suites and develop tutorials to train users – Define quality controls on calibration results CLAS12 Software Review, 11/7/2014Calibration Software Development and Status16