Topics for discussion

1. Overview main features of the GlueX subdetectors which are planned be integrated into the Level-1 trigger:

• Tagger microscope counters
• Start Counter
• FCAL
• BCAL
• TOF

Discuss:

1. feasibility of usage and their role in the Level-1 algorithm,
2. rates induced by electromagnetic and hadronic interactions,
3. signal responses: pulse shapes and signal propagation timing

   (feedback is needed from the prototypes test: BCAL, TOF)

4. signal thresholds,
5. cabling.

2. Overview the trigger algorithm.

3. Trigger types

• global self-triggered types (physics, cosmics, random, calibration ...),

  external triggers (calibration), and sub-detector standalone triggers

  Feedback is needed from sub-detector and calibration groups.

4. Overview trigger electronics:

• Performance of board prototypes:
  1. fADC250 (modes, FPGA resources...)
  2. Signal Distribution (SD)
  3. Trigger Interface (TI)
  4. Crate Trigger Processor (CTP)
  5. Results from the 2 crates test stand

• Specifications (design) of the board prototypes:
  1. Sub-System processor (SSP)
  2. Trigger Distribution (TD)
  3. Trigger Supervisor (TS)
  4. Global Trigger Processor (GTP)

5. Monitoring of the hardware performance

1. Online monitors ( scalers )
2. Algorithm/hardware tests using inputs from MC simulation

6. Trigger electronics in 12 GeV HALL-B project