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Low Energy Electromagnetic Physics |
Status: in CVS repository
Version: 2.5
Project: Geant4-LowE
Created: 22 June 1999
Last modified: 12 October 2002
Prepared by: Maria Grazia Pia (INFN)
Introduction
This document collects the specific requirements concerning Geant4 Low Energy Electromagnetic Physics expressed by users. Please refer to Geant4 User Requirement Document for the general context.
Low Energy Electromagnetic Physics provides software for the simulation of electromagnetic interactions of electrons, positrons, photons, hadrons and ions, extended down to low energies.
The software is meant to be part of the Geant4 Toolkit.
The user shall be able to simulate the electromagnetic interactions of electrons, positrons, photons, hadrons and ions down to low energies.
The user shall be able to simulate atomic relaxation.
The user shall be able to simulate polarisation.
Geant4 Low Energy Electromagnetic Physics will be compatible for usage with the Geant4 Toolkit.
The user will be able to customize services in a suitable way for his/her specific applications.
User communities especially interested in Low Energy Electromagnetic Physics are astrophysics and astroparticle experiments, space science experts, medical physics groups.
The experiments and associated groups contributing to this document include:
The software will be for use in a Unix environment with an ISO compliant C++ compiler, subject to the same environment as the Geant4 Toolkit.
This document relies on the assumption that Geant4 Low Energy Electromagnetic Physics project will be supported and adequately funded.
Specific Requirements
UR 1.1 The user shall be able to simulate interactions of electrons and photons down to 250 eV.
Need: Essential
Priority: Implemented
Stability: Stable
Source: ESA
Clarity: Clear
Verifiability: To be verified
UR 1.2 The user shall be able to simulate interactions of electrons and photons down to the order of the eV.
Need: Potentially useful
Priority: To be evaluated
Stability: Under evaluation
Source: ESA
Clarity: Under evaluation
Verifiability: To be verified
UR 1.3 The user shall be able to simulate the interactions of positrons of energy between 0 and 20 MeV.
Need: Essential
Priority: To be evaluated
Stability: Stable
Source: CERN experiment IS370
Clarity: Clear
Verifiability: To be verified
UR 1.4 The user shall be able to simulate electron binding effects and Doppler broadening.
Need: Essential
Priority: To be evaluated
Stability: Stable
Source: Yale medical physics group
Clarity: Clear
Verifiability: To be verified
UR 1.5 The user shall be able to simulate interactions of positrons down to the same lower energy limit as electrons.
Need: Essential
Priority: To be evaluated
Stability: Stable
Source: Univ. of Valencia, study of beta decays
Clarity: Clear
Verifiability: To be verified
UR 2.1 The user shall be able to simulate interactions of positive charged hadrons down to < 1 KeV.
Need: Essential
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groupspan>
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups, PIXE et al.
Clarity: Clear
Verifiability: To be verified
UR 2.3 The user shall be able to simulate the energy loss and production of secondaries for antiprotons down to < 1 KeV in metallic materials and in materials transparent to light.
Need: Essential
Priority: T. b. d.
Stability: Stable
Source: ATHENA experiment
Clarity: Clear
Verifiability: To be verified
UR 2.4 The user shall be able to simulate the electromagnetic interactions of heavy ions with negative charge down to 1 keV.
Need: Essential
Priority: T. b. d.
Stability: T. b. d.
Source: Milano Weak Interactions Group
Clarity: Clear
Verifiability: To be verified
UR 2.4
UR 2.5 The user shall be able to simulate straggling.
Need: Essential
Priority: Needed in 2000
Stability: Stable
Source: INFN
Clarity: Clear
Verifiability: To be verified
UR 2.6 The user shall be able to simulate the low angle elastic surface scattering of protons of energy up to a few MeV.
Need: Essential
Priority: Needed in 2001
Stability: Stable
Source: ESA
Clarity: Clear
Verifiability: To be verified
UR 3.1 The user shall be able to simulate the atomic excitation and relaxation induced by electrons and photons.
Need: Essential
Priority: Needed by June 2001
Stability: Stable
Source: ESA Space Department (Bepi Colombo mission)
Clarity: Clear
Verifiability: To be verified
UR 3.2 The user shall be able to simulate the atomic excitation and relaxation induced by hadrons.
Need: Essential
Priority: Needed by June 2001
Stability: Stable
Source: ESA Space Department (Bepi Colombo mission), INFN PIXE
Clarity: Clear
Verifiability: To be verified
UR 3.3 The user shall be able to simulate the atomic excitation and relaxation induced by ions.
Need: Essential
Priority: Needed by October 2001
Stability: Stable
Source: INFN PIXE
Clarity: Clear
Verifiability: To be verified
UR 4.1 The user shall be able to simulate polarised Compton scattering.
Need: Essential
Priority: Needed by end 2001
Stability: Stable
Source: INFN-Argentinian telescope, UNH
Clarity: Clear
Verifiability: To be verified
UR 4.2 The user shall be able to simulate polarised Rayleigh scattering.
Need: Essential
Priority: Needed by end 2001
Stability: Stable
Source: UNH
Clarity: Clear
Verifiability: To be verified
UR 4.5 The user shall be able to simulate polarised g conversion.
Need: Essential
Priority: Needed by end 2001
Stability: Stable
Source: AGILE
Clarity: Clear
Verifiability: To be verified
UR 4.5 The user shall be able to simulate polarised photoelectric effect.
Need: Essential
Priority: To be evaluated
Stability: Stable
Source: G. Depaola, F. Longo
Clarity: Clear
Verifiability: To be verified
UR 5.1 The user shall be able to mix different physical models for a same physics process across an energy range.
Need: Unclear
Priority: T.b.d.
Stability: Stable
Source: P. Gumplinger
Clarity: Clear
Verifiability: To be verified
UR 5.2 The user shall be able to activate different physical models for a same physics process in different components of the experimental set-up, according to the different features required.
Need: Unclear
Priority: T.b.d.
Stability: Stable
Source: Atlas, Medical physics groups, Bepi Colombo
Clarity: Clear
Verifiability: To be verified
UR A.1 The energy range of energies of incident electrons and photons to be handled by medical applications should be between 1 keV and 20 MeV.
Need: Essential
Priority: T.B.D
Stability: Stable
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR A.2 The user shall be able to simulate the 3-dimensional distribution of the absorbed dose released in human body by electrons and photons with precision of the order of 1 mm.
Need: Essential for treatment planning in radiotherapy
Priority: T. b. d.
Stability: Stable
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR A.3 The user shall be able to simulate the 3-dimensional energy deposit in human body with precision of the order of 1 mm, resulting from incident electrons and photons.
Need: Essential for microdosimetry
Priority: T. b. d.
Stability: Stable
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR A.4 The user shall be able to simulate the 3-dimensional distribution of the energy deposit in human body along and around the track with precision of the order of 1 nm, resulting from incident electrons and photons.
Need: Essential for radiobiology
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR A.5 The user shall be able to simulate accurate angular distribution of Bremsstrahlung, with models comparable or better as in EGSnrc PIRS-701.
Need: Essential
Priority: To be evaluated
Stability: Stable
Source: LIP medical physics group
Clarity: Unclear, reference to physics paper required
Verifiability: To be verified
UR A.6 The user shall be able to simulate accurate angular distribution of photoelectric effect, with models comparable to, or better than, the one in W. Heitler, The Quantum Theory of Radiation, 1984, Dover, New York
Need: Essial;mso-bidi-font-family:"Times New Roman"'>Priority: To be evaluated
Stability: Stable
Source: LIP medical physics group
Cdent>Need: Essential
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.2 The energy range of energies of incident ions to be handled by medical applications should be up to 500 MeV/u.
Need: Essential
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.3 The energy range of energies of incident antiprotons to be handled should be between < 1 KeV up to a few MeV.
Need: Essential
Priority: T. b. d.
Stability: Stable
Source: ATHENA experiment
Clarity: Clear
Verifiability: To be verified
UR B.4 The energy range of energies of incident negative ions to be handled should be between 1 keV and a few hundred keV
Need: Essential
Priority: T. b. d.
Stability: Stable
Source: Milano Weak Interactions Group
Clarity: Clear
Verifiability: To be verified
UR B.5 The user shall be able to simulate the 3-dimensional distribution of the absorbed dose in human body with precision of the order of 1 mm, resulting from incident protons.
Need: Essential for treatment planning in radiotherapy
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.6 The user shall be able to simulate the 3-dimensional distribution of the absorbed dose released in human body by ions with precision of the order of 1 mm.
Need: Essential for treatment planning in radiotherapy
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.7 The user shall be able to simulate the 3-dimensional energy deposit in human body with precision of the order of 1 micron, resulting from incident protons.
Need: Essential for microdosimetry
Priority: T. b. d.
Stability: Stable
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.8 The user shall be able to simulate the 3-dimensional energy deposit in human body with precision of the order of 1 micron, resulting from incident ions.
Need: Essential for microdosimetry
Priority: T. b. d.
Stability: Stable
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.9 The user shall be able to simulate the 3-dimensional distribution of the energy deposit in human body along and around the track with precision of the order of 1 nm, resulting from incident protons.
Need: Essential for radiobiology
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.10 The user shall be able to simulate the 3-dimensional distribution of the energy deposit in human body along and around the track with precision of the order of 1 nm, resulting from ions.
Need: Essential for radiobiology
Priority: T. b. d.
Stability: T. b. d.
Source: Medical physics groups
Clarity: Clear
Verifiability: To be verified
UR B.11 The user shall be able to simulate the electromagnetic interactions of heavy ions with negative charge and energy between 1 keV and a few hundred keV.
Need: Essential
Priority: T. b. d.
Stability: Stable
Source: Milano Weak Interactions Group
Clarity: Clear
Verifiability: To be verified
UR C.1 The user shall be able to simulate the fluorescence corresponding to K, L, M lines.
Need: Essential
Priority: Needed by June 2001
Stability: Stable
Source: INFN PIXE
Clarity: Clear
Verifiability: To be verified
UR D.1 The user shall be able to simulate the effects of incident polarisation in a more complete way than only in the first scatter.
Need: Essential
Priority: Needed by June 2001
Stability: T. b. d.
Source: UNH
Clarity: T. b. d.
Verifiability: To be verified
UR E.1 The user should have access to examples of real-life applications involving low energy electromagnetic physics.
Need: Essential
Priority: T. b. d.
Stability: Stable
Source: INFN
Clarity: Clear
Verifiability: To be verified
Document Status
Document Title: |
Geant4-LowE URD |
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Issue: |
Revision: |
Date: |
Reason for change: |
0 |
0 |
22 June 1999 |
Created |
0 |
1 |
29 June 1999 |
Updates received from users |
0 |
2 |
2 July 1999 |
Updates received from users |
0 |
3 |
3 July 1999 |
Updates received from medical physics groups |
0 |
4 |
5 July 1999 |
Minor editorial modifications |
1 |
Updates received from IST, MI-Weak interactions group, LUNA |
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2 |
0 |
25 December 2000 |
Reformatted into MS Word Removed limitation to INFN experiments Added requirement from users at Univ. Montreal |
2 |
1 |
22 January 2001 |
Added requirements on polarisation |
2 |
2 |
22 February 2001 |
Added requirements on positrons, Doppler broadening |
2 |
3 |
20 March 2001 |
Reformatted and cleaned up |
2 |
4 |
26 March 2001 |
Petteri modified low angle scattering |
2 |
5 |
12 October 2002 |
Added requirements on angular distributions, positrons, models |