1. FORWARD CARRIAGE UPDATE – March-July 2015
March 16-31: Sector 2 FTOF/PCAL initial checkout
Missing PCAL FADC channels: U41,U54,V5,V43,V55,W47,W48 (mostly reseated LEMO cables at patch panel).
Missing PCAL DSC2 channels: W34, W55.
FTOF gain matched.
April 1-4: Sector 6 FTOF/PCAL rechecked.
April 4-9: Sector 3 FTOF/PCAL rechecked.
Found 2 bad DSC2 in TDCECAL3 crate
Found 2 bad TDCs (1290) in TDCFTOF3 crate (dust, readout errors).
April 14-18: Sector 1 FTOF/ECAL rechecked, PCAL initial checkout.
PCAL was not cabled up in 2014 so ECAL is the trigger for this sector.
Missing PCAL: U2,U17,U41,U42,U44,U55,U58,U61,U65,V15,V27,V34,W1,W9,W19,W47,W51,W55.
Causes: 4 stripped BNC at PMT, 4 disconnected SHV, 5 reseated LEMO at p.p., 1 bad LEMO at p.p., 2 bad LEMO patch cables.
HPS Interruption
May 21: HPS/FADC firmware upgrade (Sector 1)
Permits scaler readout and TET>0 mode.
June 2: New libraries for v1190/1290 TDCs.
Fixes ‘first run’ bug (TDCs disappear until 2nd run after roc_reboot).
June 14: HPS/FADC upgrade for Sectors 2-6.
June 23: ECAL HV mainframe mapping error fixed.
June 29 - July 2: All remaining v1190 TDCs for ECAL/PCAL are cabled.
July 13: Re-cabled HVECAL4 and connected to PMTs.
100 %

2. Diagnostic Tools - FCMON
Based on upgrade of Sergey’s original C++/Root program
Displays FADC, DSC2 scalers in slot/channel, histogram or stripchart formats.
Useful for quick diagnosis of splitter, cable or PMT issues without starting a DAQ run or pulling fragile cables.
Compare FADC/DSC2 scaler rates to evaluate ADC, TDC threshold settings.
Use stripchart data to identify PMTs with stability problems.

3. IB= 0
Bad DSC2 cables
IB= 0

4. Stripped BNC at PMT
Bad LEMO at p.p.
Bad FADC cables

5. Bad DSC2 cable

6. FCMON – Slot, Channel Readout
Future versions of FCMON will incorporate information from HV/EPICS and FADC/TDC data-stream to help debug HV/PMT issues and cable failures (“smart” alarms).
Bad FADC cable
Bad DSC2 cable
Bad FADC cable

7. ECAL Occupancy and Rates – Sector 1
EC inner
DSC2 (left)
FADC (right)
Ideally DSC2 and FADC rates should agree if dominated by cosmics.
EC outer
DSC2 (left)
FADC (right)

8. Cosmic Trigger Issues Sector 1: ECAL inner U(1)V(1)W(1)
Best pixel efficiency is for triggered calorimeter
S1: ECAL inner: 28% ECAL outer: 4.3% PCAL: 1.9%
ECAL triggers are 50% accidentals due to noisy PMTs and lower thresholds (just above s.p.e.)
Some PCAL/ECAL triggers are mutually exclusive due to multiple scattering, ECAL projective geometry, etc.
CTP based trigger will give more flexibility than v1495
Sector 1: ECAL inner U(1)V(1)W(1)
Sector 2-6: PCAL U(1)V(1)
Pixel candidates: N=3
Dalitz pixel cut: U+V+W=2

9. EC/PCAL Energy Calibration
Pre-filter data to obtain suitable muon MIP tracks.
EC/PCAL Energy Calibration
Light attenuation obtained using crossing strips to measure x. x
Extrapolate fit to x=0 to obtain PMT gain
Nick Compton (Ohio U) ported legacy code to C++/Root (GitHub:fc/ncompton/Rawhistos.C ).
Taya Chetry (Ohio U) beginning to port Rawhistos.C into Common Tools Environment.

10. EC-PCAL event monitoring
GUIs developed to evaluate detector status and preview calibration histograms prior to testing algorithms with simulated and real muon tracks.
TBrowser
class
DetectorViewApp class
Allows rapid navigation through detector elements.
Detector map can be configured to display reconstructed data or alarm conditions.
Single event display of FADC data in works.
Composite bank decoder for forward carriage raw data now available.
This is to show an example of a detector where experts are in the process of developing the algorithms starting from legacy software
One of the first efforts that was started is focused on the development of energy calibration tools for the forward em calorimeters, the EC-Pcal systems
This work Is critical because these system are the basis for the CLAS12 electron trigger that requires online cluster recognition with good and uniform spatial and energy resolution
For this reason, it is necessary to know and monitor online calibration parameters such as ….
The calibration software has to be run online, being able to…

11. ECMON DEMO
DetectorBrowserApp class

12. Contents Legacy kumac/fortran calibration and monitoring scripts.
C code for ET monitoring, filtering and ntuple creation.
FCMON scaler display.
Common Tools prototyping (java, groovy).
Student development (Nick Compton, Taya Chetry).

13. Detector Commissioning Online Monitoring and Calibration
To Do
Detector Commissioning
Sector 2: EC patch/FADC/DSC cabling (splitter shortage).
Sector 5: EC outer patch cables to splitter.
Sector 6: Connect HVECAL6 to PMTs.
Study alternative trigger logic to improve pixel efficiency.
EC checkout with cosmics (all HV mainframes operational).
Online Monitoring and Calibration
Continue development of JAVA/C++ tools (Cole, Taya, Nick).
Attenuation algorithm operational in Java by Fall of 2016.
Upgrade Qt based hv_control GUI to CSS (Nathan B.).
Postpone “final” PCAL/ECAL gain matching until CTP trigger installed. Provides more flexibility for efficiency studies.