Geant4 Generic Physics Test User Requirements                                            written by
                                                                                                                                                                               S.Guatelli, A. Lemut

----- Work is in progress! -----

Scope
The aim is the analysis of Geant4 simulation results concerning interaction of particles through matter.
The test produces typical distributions of physical quantities of interest for testing a set of physical processes.
The simulation consists in a beam impinging on a target.
The user shall be able to retrieve information about distribution of physical quantities to be compared with reference data.
 

Specific Requirements

Geometry
UR1. The geometry consists in a box filled with vacuum and an absorber material target is set inside;
Need: Essential
Priority: High
Source: LowE/Std EM WGs UR2. The user shall be able to change the absorber material of the target;
Need: Essential
Priority: High
Source: LowE/Std EM WGs UR3. The user shall be able to change the size of the target;
Need: Essential
Priority: High
Source: LowE/Std EM WGs UR4. The user shall be able to define the maximum step in the target;
Need: Essential
Priority: High
Source: Range/Stopping Power tests

Particles UR1. The user shall be able to define:

  1. electrons;
  2. positrons;
  3. protons;
  4. antiprotons;
  5. pions;
  6. photons;
  7. ions.
Need: Essential
Priority: High
Source: LowE/ Std EM WGs

Primary particles UR1. The user shall be able to define the primary vertex;
Need: Useful
Priority: Medium
Source:  LowE/ Std EM WGs UR2. The user shall be able to define the type of primary particles;
Need: Essential
Priority: High
Source: LowE/ Std EM WGs UR3. The user shall be able to define the  primary particles direction;
Need: Essential
Priority: High
Source: LowE/ Std EM WGs UR4. The user shall be able to define the  primary particles energy;
Need: Essential
Priority: High
Source: LowE/ Std EM WGs UR5. The user shall be able to define the particle beam energy distribution;
Need: Essential
Priority: Medium
Source: UR6.The user shall be able to define the particle beam direction distribution;
Need: Useful
Priority: low
Source:

Physical Processes
Electrons and positrons:

  1. Ionisation;
  2. Bremsstrahlung;
  3. Multiple Scattering;
  4. Positron Annihliation.