1. Bi-Weekly Meeting 2004/09/08 Susumu Oda
Analysis Procedure
Detection Efficiency
Spatial Resolution
Contents of Master Thesis
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2. Analysis Procedure 1-a. Pedestal and Hit
Hit threshold is 4ch.
Red 2ch, Green 3ch
Blue 4ch, Yellow 5ch
Average of ADC is used as run by run pedestal.
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3. 1-b. Signal Fitting
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4. 1-c. Position Determination
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5. 2. Detection Efficiency
~99.5%
~94%
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6. 3. Spatial Resolution 3-a. Drift Length Dependence 6/9
Red : P10 chevron Blue : P10 rectangle
Yellow : ArC2H6 rectangle Green : CF4 chevron
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7. 3-b. Beam Rate Dependence
Red : P10 chevron Blue : P10 rectangle
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8. 3-c. Incident Angle Dependence
Red : P10 chevron Blue : P10 rectangle
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9. 4. Contents of Master Thesis
Introduction
Heavy Ion Collision Experiments
Requirements of a Central Tracker in a Heavy Ion Collision Experiment
Gas Electron Multiplier (GEM)
Overview of This Thesis
GEM-TPC Prototype
Merits of GEM-TPC
Mechanical Structure
Operation of GEM and Field Cage
Front End Electronics
Gas (Gain, Drift Velocity and Diffusion)
Experiment
Purpose
Setup
Run List
Analysis
Particle Identification Capability
Tracking Capability
Event Reconstruction of the TPC
Efficiency
Spatial Resolution
Energy Resolution
Multi-Track Resolution
Beam Rate Dependence
Conclusion
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