Trigger Simulation

1
Trigger Simulation

• Hisaya Kurashige
• KOBE Univ.

2
Objective

• Simulate 1st level Trigger using TGC
• As a part of MC production in ATLAS
• to evaluate Trigger Performance
• to filter events
• For design of Trigger electronics
• to evaluate Implementation of logic
• to study Timing calibration and Diagnosis
  procedures

3
Objective
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TGC Level-1 simulation

• Input (same as current DICE)
• Hit information of TGC chambers
• Chamber number
• Hit Position/Time
• Momentum information of incoming particles
• Output
• Raw Data
• Hit pattern of chambers
• Trigger Information
• RoI information to MUCTPI
• Test vectors at each stage of trigger logic

5
Design policy

• Detailed trigger simulation based on real
  electronics design
• Can describe logic according to real
  implementation of ASIC
• Can describe individual module
• Can describe connection between modules
• Can treat multi-bunch simulation

6
Schematic

• Electronics System
• Main class (management)
• Database
• Keep information of connection between modules
• ASD/Digi
• Detector simulation outputs
• Sector
• Trigger simulator

7
Current Status -1

• Prototype Code was finished by Daisuke and Koichi
  as a part of his master degree work on Mar 00
• These are very preliminary results and we found
  some bugs exist

dR,df in a High Pt Board for muon tracks
8
Current Status -2

• Now, a new student, Totsuka, takes over it
  supervised by Yoji, Kazumi and Yoji
• Prof. Yu Fu helps us as a foreign researcher at
  ICEPP

9
Current Status -3

• Comparison of simulation results with Yojis
  results starts
• But, there are some problems
• It takes time for new students to understand TGC
  trigger scheme
• We have changed TGC numbering scheme (sector No,
  chamber No etc.) for production/electronics/simula
  tion from one used in DICE. It causes some
  troubles.

10
Migration on ATHENA/PESA scheme -1

• Trigger Simulation is a algorithm in ATHENA
  framework
• Use Case Documents
• Digitizer
• Trigger Simulator
• MC production
• Diagnosis for electronics

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Migration on ATHENA/PESA scheme -2

• Framework Change
• Use TDS (Transient Data Storage) for
• Digitizer input (DICE Hit output equivalent)
• Digitizer output (RAW data equivalent)
• Trigger output (MUCTPI input equivalent)
• Test Vectors
• Create/Use Detector Data Service
• For both trigger and detector simulation
• Geometry
• Connection Table