First Geant4 Tutorial Workshop in São Paulo

4 Feb 2019, 08:00 → 8 Feb 2019, 18:00 America/Sao_Paulo

Auditório Abrahão de Moraes (Instituto de Física da Universidade de São Paulo)

Marcelo Gameiro Munhoz (Universidade de Sao Paulo (BR)), Mauro Rogerio Cosentino (Universidade Federal do ABC (BR)), Maurício Moralles (IPEN)

We are pleased to announce the First Geant4 Tutorial Workshop in São Paulo (Geant4SP) that will take place in the Instituto de Física da Universidade de São Paulo from February 4 to February 8, 2019. The workshop is organized by the Centro de Ciências Naturais e Humanidades of the Universidade Federal do ABC, the Instituto de Física da Universidade de São Paulo (IFUSP) and the Instituto de Pesquisas Energéticas e Nucleares (IPEN).

The workshop is mainly aimed to graduate students in the fields of Nuclear and Particle Physics and any field that deals with radiation and particle detection, as Medical Physics or material studies.

Geant4 is a toolkit for simulating the passage of particles and radiation through matter written in C++ which runs on Linux, Mac OS and different types of UNIX flavours. Hence it is highly recommended that the participants have at least a basic level of understanding of C++ and UNIX like operational systems.

The program will consist of invited plenary talks in the form of lectures and hands on activities, giving to the workshop the dynamics of a Tutorial. Participants are invited to bring their own laptop, allowing them to finish the Workshop with a working version of the code.

The topics covered by the tutorial are:
- Monte Carlo techniques and Detector simulation
- Applications modeling
- Interfaces and Graphical Visualizations of events and tracking - Physics modeling of Hadronic and Electromagnetic processes - Event generation
- Detector modeling: geometry, materials and external fields
- Multithreading simulations
- Analysis tools

Each participant should have his/her own laptop, that has the latest version of Geant4 (version 10.5) installed in multithreaded mode. Given the size of the download and required time for build/compile of the library, as well as potential diversity of the OS and compilers, we cannot cover the installation during our tutorial/hands-on.

Geant4 version 10.5 can be downloaded from this URL.
https://geant4.web.cern.ch/support/download

Installation guide is here.
http://geant4-userdoc.web.cern.ch/geant4-userdoc/UsersGuides/InstallationGuide/html/index.html

If there is any installation problem, one can consult to Geant4 HyperNews.
http://hypernews.slac.stanford.edu/HyperNews/geant4/get/installconfig.html

 

Monday, 4 February

Day 1: Registration

Day 1: Welcome, Introduction and first lectures

1 Welcome

Speaker: Mauro Rogerio Cosentino (Universidade Federal do ABC (BR))

2 Tutorial introduction

• Network, logistics
• Tutorial structure
• Lecturers introduction

Speaker: Mauro Rogerio Cosentino (Universidade Federal do ABC (BR))

3 Introduction to detector simulation

Basic concepts of Monte Carlo and detector simulation

Speaker: Dennis Herbert Wright

MCIntroSaoPaulo.pdf

4 Kernel I

• General introduction of Geant4
• Use-case studies in HENP, space, medicine and other user domains
• Global structure of Geant4
• Run, event, track, step, trajectory, etc.
• User classes

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Kernel1.pdf

10:30 Break

Day 1: Morning Lectures

5 User documents and examples

• Installation Guide
• Application developer’s manual
• Toolkit developer’s manual
• Physics reference manual
• Novice examples in Geant4 distribution
• Extended and advanced examples in Geant4 distribution
• LXR source code browser
• HyperNews

Speaker: Dennis Herbert Wright

ExampleDocsSaoPaulo.pdf

6 User interface I

• Syntax of UI command
• Interactive mode / batch mode
• G4UIExective class

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

UserInterface1.pdf

7 Visualization I

• Introduction to Visualization
• Quick Looks at Seven Visualization Drivers
• Basic Visualization Commands

Speaker: Mihaly Novak (CERN)

Visualization1-v2.pdf

12:20 Lunch

Day 1: Afternoon Lectures

8 Scoring I

• Introduction to sensitivity
• Command-based scoring
• Add a new scorer/filter

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Scoring1.pdf

9 Physics I

• Introduction
• G4VUserPhysicsList class
• Modular physics list
• Packaged physics lists
• Choosing appropriate Physics List

Speaker: Mihaly Novak (CERN)

PhysLists.pdf

15:00 Break

10 Hands-On: Session I

Complete Geant4 installation and execute a few examples to confirm the installation

• Hands-on instruction
• Additional links
  -- Installation guide
  -- Troubleshooting: Installation and Configuration thread of Hypernews

Tuesday, 5 February

Day 2: Early Lectures

11 Material definition

• Defining Materials
• NIST Material database

Speaker: Dennis Herbert Wright

MaterialsSaoPaulo.pdf

12 Geometry I

• Introduction
• G4VUserDetectorConstruction class
• Solid
• Logical volume
• Region
• Physical volume
• Placement

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Geometry1.pdf

10:30 Break

Day 2: Morning Lectures

13 Primary particle

Introduction
Built-in primary particle generators
- Particle gun
- Interfaces to HEPEVT and HEPMC
- General particle source
Pre-assigned decay

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

PrimaryParticle.pdf

14 Physics II

• Physics components
  - General process interface
  - Secondary production threshold

Speaker: Mihaly Novak (CERN)

ProcessStepping.pdf

12:20 Lunch

Day 2: Afternoon Lectures

15 Physics III

• Decay
• Optical
• Phonon, electron/hole
• Channeling

Speaker: Mihaly Novak (CERN)

Physics3_DecayAndOptical.pdf

16 Geometry II

• Parametrized volume
• Replicated volume
• Divided volume
• Nested-parameterization
• Assembly volume
• Reflected volume
• Touchable

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Geometry2.pdf

15:00 Break

17 Hands-On: Session II

• Material and a simple geometry
• Visualization of geometry
• Command-based scoring

-- Hands-On instruction

Wednesday, 6 February

Day 3: Early lectures

18 EM physics I

• EM standard overview

Speaker: Mihaly Novak (CERN)

EM_standard.pdf

19 Geometry III

• Magnetic field
• Field integration and other types of field
• GDML interface
• CAD interface
• Geometry checking tools
• Geometry optimization

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Geometry3.pdf

10:30 Break

Day 3: Morning Lectures

20 EM physics II

• Low-E EM overview
• DNA physics

Speaker: Mihaly Novak (CERN)

EM-LowE-v3.pdf

21 Scoring II

• Define scorers in the tracking volume
• Accumulate scores for a run
• Sensitive detector vs. primitive scorer
• Basic structure of detector sensitivity
• Sensitive detector and hit
• Touchable
• Use of G4HCofThisEvent class

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Scoring2.pdf

12:20 Lunch

Day 3: Afternoon Lectures

22 EM physics III

-specific topics of standard EM physics modelling:
- energy-loss processes
- multiple scattering
- their role in Geant4 stepping

Speaker: Mihaly Novak (CERN)

Geant4Stepping.pdf

23 Hands-On: Session III

• Complete geometry
• Define scorers
• User Actions I: printing information on the screen

-- Hands-On instruction

15:00 Break

24 Hands-On: Session III

• Complete geometry
• Define scorers
• User Actions I: printing information on the screen

-- Hands-On instruction

Thursday, 7 February

Day 4: Early lectures

25 Hadronic physics I

• Hadronic physics overview
• Pre-compound/de-excitation models
• Cascade models

Speaker: Dennis Herbert Wright

HadPhys1SaoPaulo.pdf

26 UserInterface II

• Mechanism of UI command
• Defining basic UI command
• Defining complex UI command
• G4GenericMessenger
• UI command in multithreaded mode

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

UserInterface2.pdf

10:30 Break

Day 4: Morning Lectures

27 Hadronic physics II

• Elastic process
• Neutron physics
• Ion physics
• Capture, stopping and fission models

Speaker: Dennis Herbert Wright

HadPhys2SaoPaulo.pdf

28 Multithreading I

• Introduction to multithreading
• UI commands for multithreading

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Multithreading1.pdf

29 Analysis

• G4Tools : built-in analysis tool

Speaker: Mihaly Novak (CERN)

Analysis-v3.pdf

12:20 Lunch

Day 4: Afternoon Lectures

30 Hadronic physics III

• String models
• Gamma- and Electro-nuclear models
• Radioactive decay

Speaker: Dennis Herbert Wright

HadPhys3SaoPaulo.pdf

31 Visualization II

• Visualization commands

Speaker: Mihaly Novak (CERN)

Visualization2-2.pdf

32 Geometry IV

• Parallel geometry
• Layered mass geometry
• Moving objects

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Geometry4.pdf

15:00 Break

33 Hands-On: Session IV

• User Actions II: Accumulating information from a run
• Use g4tools to create histograms and output ntuple files

-- Hands-On instruction

Friday, 8 February

Day 5: Early lectures

34 Event biasing

• Overview
• Geometrical biasing
• Physics biasing
• Bremsstrahlung splitting

Speaker: Dennis Herbert Wright

BiasingSaoPaulo.pdf

35 Multithreading II

• Thread safety
• MPI
• File I/O in multithreaded mode

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Multithreading2.pdf

10:30 Break

Day 5: Morning Lectures

36 Physics list

• Choice of physics list
• Validation of physics lists

Speaker: Mihaly Novak (CERN)

ChoosingPhysLists.pdf

37 Kernel II

• User limits
• User information classes
• Fast simulation (a.k.a. shower parameterization)
• Stack management

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

Kernel2.pdf

12:20 Lunch

Day 5: Afternoon Lectures and Closing

38 Q/A

39 How to Update Your Geant4 Installation

• Major versus minor releases
• What to look for in the release notes

Speaker: Dennis Herbert Wright

UpgradingSaoPaulo.pdf

40 Closing remarks

Speaker: Makoto Asai (SLAC National Accelerator Laboratory (US))

ConcludingRemarks.pdf