First steps with Geant4

Contribution List

1. Introduction

Mihaly Novak (CERN)

19/05/2025, 14:00

• scope and goal of this course
• a short introduction to Geant4
• introduction of some important Geant4 concepts such as run, event, track, etc.

2. Preliminaries

Mihaly Novak (CERN)

19/05/2025, 15:50

• introduction of our work environment (i.e. the virtual machine installation,
  demystification of Geant4 install and CMake configuration, etc.)
• recapitulation of some object oriented concept of C++ crucial for the course
  (such as interface and their usage)

3. Detector Description

Mihaly Novak (CERN)

20/05/2025, 14:00

• introduction of the G4VUserDetectorConstruction interface
• introduction to the Geant4 geometry description
• introduction to the Geant4 material description

4. Implementation of the Detector-Construction of our application

20/05/2025, 15:50

We will develop the main of our application.
Then we will start to implement its mandatory components:
- first the DetectorConstruction, i.e. the detector geometry and material description

5. Completing the Detector-Construction implementation

Mihaly Novak (CERN)

21/05/2025, 14:00

We start work today using the end-of-day2.tar.gz which you will find in Day2 (first presentation).

Please read its README.txt file to get started.

6. Primary Particle Generation

21/05/2025, 15:50

Topics:
- a (very basic) look behind multi-threaded Geant4
- introduction of the G4VUserPrimaryGeneratorAction and usage
- introduction of G4VUserActionInitialization interface
- implementation of the primary generator of our application

7. Complete the primary generator implementation

Mihaly Novak (CERN)

22/05/2025, 14:00

8. Introduction of more Geant4 user actions

Mihaly Novak (CERN)

22/05/2025, 15:50

We will revisit the key Geant4 concepts (run, event, step) related to actions

Introduce of the Actions and the related Geant4 interfaces
- Stepping Action (G4UserSteppingAction),
- Event Action (G4UserEventAction),
- and RunAction G4UserRunAction,

Implement the remaining user actions of our application.

9. Using more CPU cores with Multithreading

Mihaly Novak (CERN)

23/05/2025, 14:00

• reviewing our applications's user actions
• Multi-threading: introduction and practical implications for our application

The starting point is end_of_day4.tar.gz found in Thursday's timetable, with its README.txt

10. Using application and adding a custom User Interface

Mihaly Novak (CERN)

23/05/2025, 16:00

Finish and use the application and compare results with experimental data

Introduction to Geant4 UI commands

Implementing UI commands to allow us to change of the target material, thickness at run-time

Final questions