Information Needed Fast (per spill)
Basic Monitoring
- Number of triggers (FPGA), road set monitor, (sig/back), lineshape
- DAQ + DAQ error rates (at TDC, ROC, TS, etc.)
- Occupancy per spill (set of histos: DC, SH, FH, PT), TDC-time distros, in-time peak monitoring
- Comparison of real trigger bits and emulated trigger bits
- TDC-time distribution: particularly of hodoscopes, where the in-time peak shifted several times during E906 due to hardware failure
- Beam intensity: veto percentage, triggered-RF intensity
- Monitoring scalars
- Active/inactive paddles and detector issues
Higher Level Monitoring (with slow control integration)
- TDC time difference between H2XT and H4XB vs flight distance
- Hit pattern overlap from DC, SHodo and FHodo
- Hodo rates vs High Voltage
- PMT rates vs High Voltage
- DC rates vs High Voltage, current and leak current
- Temperature in analysis magnet and polarity vs hit patterns for +/- muons
- Hit pattern in detectors in comparison to golden hits
- Gas flow pressure with rates
Beam-target interaction (info from scalars and Cherenkov)
- Rates in scalers
- Changes in structure of the beam
- Timing and distribution in space
Reconstructed Information (Px, Py, Pz, Vx, Vy, Vz)
- J/psi mass (mean and width)
- Kinematics of Dimuons (q_T, x_b, X_F, phi)
- Kinematics of single tracks (differential charge)
- Degree of L/R asymmetry, U/D asymmetry from all incoming events
- Monitoring of non-target interactions: ladder
- Counting the number of J/psi and DY per spill
- Lineshape monitoring
- Target fully intact
Higher Level Analysis
- Real-time L/R asymmetry from J/psi (spill and accumulated statistics)
- Real-time deviation from normal diurnal asymmetry
- Asymmetry as a function of kinematics
- Pattern recognition of all detector systems per spill with correlations for timing and element ID
- Deviations from golden run based on trained data
- Tracklet info and/or partial track or track quality for k-tracker
- Level of background maybe from Qtracking
- Rates just from target maybe from Qtracking
- Quality factors based on slow control information and high level analysis
- Full N-dimension correlations in real-time
- Monitor of real-time dilution factor of x_b
Calibration
- Initial Insert Analysis: level of target rotation, pitch, and alignment with calibrating slug
- Pencil target beam position analysis
Part of Shift Monitoring scheme and Displays
Display from histograms and high-level analysis from above (still to be determined) and;
Monitoring Features:
o Ability to choose trigger or trigger mask (set of triggers) for each monitoring plot
o Ability to overlay any histogram with a reference histogram from a file
o Track quality, such as N of associated chamber hits and chi2/NDF
High level monitored plots:
o Dimuon mass (dimuon triggers)
o Dimuon mass (special low mass trigger to include full J/psi line shape)
o Angular asymmetry for J/psi region
o Reconstructed vertex position (x,y,z, 3 plots)
Reliable Event display with the following default views:
o X-Z plane (plan view of experiment, not a point viewer perspective)
o Y-Z plane (elevation view of experiment, not a point viewer perspective)
o U-Z plane (not a point viewer perspective)
o V-Z plane (not a point viewer perspective)
o Display should also include Beam Cherenkov information available from the event
o Integrated scalar with slow controls information