Positron Production Simulation Using Geant4: Detailed Overview

This comprehensive content discusses a positron production simulation program based on Geant4. It covers the simulation program description, primary generator input, outputs analysis, and areas for improvement including compatibility with G4-10.X and automation. The program involves generating gamma from channeling and charged particles with no divergence, utilizing inputs from Strakhovenko, and analyzing outputs based on target type and calorimeter parameters.

• Positron Production
• Geant4 Simulation
• Particle Physics
• Simulation Program
• Strakhovenko

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Uploaded on Sep 28, 2024 | 1 Views

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1. P Positron P Production SIM SIMulation Geant4 based

2. Simulation Program description Input file from strakhovenko Primary generator Given distribution Segmented (or not) calorimeter Strakhovenko type calorimeter (Nested cylinders) Granular target Samplers DetectorConstruction Hits (Output) ROOT Edep histograms 1D and 2D TTree (samplers) Energy, position, PID etc

3. Primary generator Input from strakhovenko Gamma from channeling but also charged particles produced No divergence (added afterwards in the G4-program) But the program is not available / only data files at givent incident energy.

4. Outputs : depends on the target type Edep per calorimeter slice or Edep / Volume (Compare to PEDD) Edep per sphere (granular target) Counts --> Extract yields TTree on Samplers Samplers thickness 10-11 m (Vacuum) TTree : x, y, z, px, py, pz, E, t, pdg etc Sampler placed before or after a volume gives access to particle distributions

5. Rooms for improvement Compatibility with G4-10.X Not yet done Fully automatized All configurations should be selected in the macro file Geometry and Type of output Combine with crystal photon generator G4Fot for example