1. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon1 Glast LAT Calibration Unit Beam Test Status Report on Online Monitor Pisa 3/20/2006

2. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon2 Hardware setup Scintillators (for external trigger) Ext Trigger box VME GASU Tower (Tkr+Cal+TEM) NIM crate (ext trigger logic) Single Tray (for multiple TEM testing)

3. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon3 Online Monitor goals Continuous real time monitoring of the CU behavior/performance: –Definition of a basic set of standard distributions at the global (CU) level and the subsystems (TKR, CAL, ACD) level. –Few simple quantities as sensitive as possible to problems/malfunctioning. All the remaining analysis should be performed offline. –Minimize the impact onto the data acquisition in terms of required processing power. –Playback capability. Beam diagnostic: –Plots sensitive to beam caracteristics/failures (…Not an event display, nor online analysis)

4. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon4 General structure: overview of the code Python core, qt user interface, Hippodraw plots All packages are supported by Online group. –Only requires LATTE Event readout based on: –DataDistributor technology in Run Control. LDF data multicasting over network. Online Monitor run on a separate PC: no impact on DAQ performances. Multiple monitors can be setup with different parameters/plots. –LDF file. Full run reprocessing. Modular architecture based on a single configuration file –Can work with several hardware configuration, from 1 module to full LAT –Very easy to add, modify or move plots (few minutes work) –But… kids, don’t try this at home!

5. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon5 How it looks like 6 general plots 4 plots for each subsystem (TKR, CAL, ACD ?). Events statistics to check monitor efficiency and DAQ settings. Simple operation: Start, Stop and Reset plot button. Hippodraw Inspector available to change plot parameters. Tool Tips for online help on plots. General plots Trigger, timing and fast track recon Event Statistics Subsystem Plots: Tkr, Cal selection tab & Twr selection button These plots refer to CR run with muon telescope as trigger

6. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon6 Zoom on TKR plots Check for beam profile. Check for empty event. Check for broken plane or GTFE (dead or noisy) Hard to see problems at the strip level, this requires offline analysis. Number of hits per event Hit profile inside the tracker, XZ and YZ projection Free space for other plots

7. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon7 Zoom on CAL plots Number of logs hit per event Sum of hit logs energy (fast calibration) Hit profile inside the Cal, XZ and YZ projection Check for beam profile. Check for log failure. Raw energy calculation based on simple, linear calibration. All readout modes (4range, ZS) are supported.

8. GLAST LAT Project CU Beam Test Workshop 3/20/2006 C. Sgro’, L. Baldini, J. Bregeon8 Work in progress : to do list Still some bugs to understand and fix. File readout to be improved (used only for debug now). Plot saving to be implemented. –For final report and saving interesting behaviour in case of problems. Speed improvement. –Now we estimate a max rate of ~100 Hz for CU Include ACD (?). –Not in pisa yet. Easy to include ancillary system if the data are available from DataDistributor. Usefull plots…some suggestions? And now a practical tutorial…