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					                                    ESA Space Environment &
                                    Effects Analysis Section




ESA Geant4 Activities

P. Nieminen, E. Daly, A. Mohammadzadeh,
         H.D.R. Evans, G. Santin



             ESA-ESTEC
                                                          ESA Space Environment &
                                                          Effects Analysis Section


   Recent and on-going Geant4-related R&D funded by ESA
 Radiation Effects Analysis Tools (REAT), SPENVIS and Geant4 interface for
  Multi-Layered Shielding Simulation Software (MULASSIS), including WWW
  version [QinetiQ, University of Southampton]
 Dose Estimation by Simulation of the ISS Radiation Environment (DESIRE)
  [University of Stockholm, Karolinska Institut, EAC, ESTEC, INR]
 Geant4 simulations on the ESA SREM instrument [University of Bern]
 Predicting displacement damage effects in electronic components by method of
  simulation (NIEL). [University of Cologne]
 Further work on low-energy e.m. extensions, e.g. for Bepi Colombo [INFN
  Genova, ESA Astrophysics, other Institutes and Universities]
 Improvement of graphical representation of solids, investigation of STEP to
  XML translation [E. Chernaev, CERN]
 Development of Internal Conversion process [QinetiQ]
 SpaceGRID, WP on Geant4 application [Datamat, QinetiQ]
 INTAS project 00-629: comparisons with SHIELD code [ESTEC, BISA,
  CNES, Russian Institutes]
                                                          ESA Space Environment &
                                                          Effects Analysis Section


          Upcoming Geant4 R&D and other activities
 Energetic Particle Shielding and Interactions Software, major R&D item. 5
  ESA missions + 5 other activities for new Geant4 models and applications
  [QinetiQ + 5 other Institutes / Teams]
 Aurora: Manned and unmanned Solar System exploration initiative. Items for
  space environments and effects:
      Radiation Shielding and Effects (Geant4 models, open competition)
      Radiation Exposure and Mission Strategies for Interplanetary Manned
         Missions (Geant4 applications, open competition)
 Proposals in the 2003-04 ESA General Studies Programme for plasma and
  components tools and applications
 Proposal for ESA-Portugal Task Force: Study on EUSO and AMS on the ISS
 Geant4 Space Users’ Forum 20-22 January 2003 at ESTEC:
   http://www.estec.esa.nl/conferences/03C05/index.html
                                                                                                                                                           ESA Space Environment &
                                                                                                                                                           Effects Analysis Section


                                MULASSIS: WWW tool for shielding calculations




                                   Particle Fleunce after 20 mm Aluminium                                                                              PHS in the Si detector

                   1.E+05                                                                                                       1.E+00


                                                                                                                                1.E-01
                   1.E+04

                                                                                                                                1.E-02



                                                                                                   Counts/keV/incident proton
                   1.E+03
Particle/cm2/keV




                                                                                                                                1.E-03
                   1.E+02
                                                                                                                                1.E-04
                   1.E+01
                                                                                                                                                             5 mm Al
                                    Proton                                                                                      1.E-05
                                                                                                                                                             1 mm Al
                   1.E+00           Neutron                                                                                                                  20 mm Al
                                    Electron                                                                                    1.E-06

                   1.E-01           Gamma
                                    Incident proton                                                                             1.E-07

                   1.E-02
                                                                                                                                1.E-08
                       1.E-01   1.E+00   1.E+01       1.E+02   1.E+03   1.E+04   1.E+05   1.E+06                                     1.E+01   1.E+02            1.E+03          1.E+04   1.E+05
                                                        Energy (keV)                                                                                         Energy (keV)
                                                                                                  ESA Space Environment &
                                                                                                  Effects Analysis Section


MULASSIS: WWW tool for shielding calculations
                                                                                        NIEL Dose per Year

                                                        1.E+08



                                                        1.E+07




                          NIEL Dose ( MeVcm2/g (Si) )
                                                        1.E+06



                                                        1.E+05                                                     Total
                                                                                                                   Proton
                                                                                                                   Neutron
                                                        1.E+04
                                                                                                                   Electron


                                                        1.E+03



                                                        1.E+02
                                                                 0            10                  20           30             40        50
                                                                                        Aluminium Shield Thickness (mm)


                                                                                        Doses in Si After Al Shield

                                                        65




                                                        55
                                                                                                             ShieldDose-2
                                                                                                             MULASSIS

                            Dose (Rad(Si)/Year)
                                                        45




                                                        35



                                                        25




                                                        15



                                                         5
                                                             0       5   10        15        20        25     30        35    40   45    50

                                                                                              Thickness (mm)
                             ESA Space Environment &
                             Effects Analysis Section



Standard Radiation
Environment Monitor (SREM)
                             ESA Space Environment &
                             Effects Analysis Section



Standard Radiation
Environment Monitor (SREM)
                             ESA Space Environment &
                             Effects Analysis Section



Standard Radiation
Environment Monitor (SREM)
      ESA Space Environment &
      Effects Analysis Section




SREM on PROBA:
protons and electrons




     SREM
                 ESA Space Environment &
                 Effects Analysis Section




ESA Columbus module on ISS
                                             ESA Space Environment &
                                             Effects Analysis Section


   DESIRE (Dose Estimation by
   Simulation of the ISS Radiation
   Environment):
   http://gluon.particle.kth.se/desire/

 Prediction of the ambient energetic
  particle environment (SPENVIS &
  additional models)
 Construction of COLUMBUS geometry
 Radiation transport, including secondary
  particle production, through the                    Neutrons
  geometry.
 Geant4, HZETRN, and SHIELD inter-
  comparison.
 Calculation of astronaut radiation doses
 Connection to an INTAS-00-629
  activity: http://srd.sinp.msu.ru/INTAS/
                                     ESA Space Environment &
                                     Effects Analysis Section


INTAS-00-629: proton and heavy ion data base
                                     ESA Space Environment &
                                     Effects Analysis Section


INTAS-00-629: proton and heavy ion data base
                                ESA Space Environment &
                                Effects Analysis Section




HERMES X-Ray Spectrometer on
Mercury Planetary Orbiter




                               PIXE from solar
                               proton events
                                   ESA Space Environment &
                                   Effects Analysis Section




HERMES X-Ray Spectrometer on
Mercury Planetary Orbiter
                               BESSY-II data
                                                                        ESA Space Environment &
                                                                        Effects Analysis Section



Laser Interferometer Space Antenna (LISA)
Satellite Test of the Equivalence Principle (STEP)
Charging of test masses by cosmic
rays and solar particles, d-rays, and
displaced gold ions

 p+, a, Au+


                                         Analysis by Geant3.21 down to 10
                                          keV; interfacing with ITS3.0 down to
                                          1 keV. [Y. Jafry et al., Class. Quantum Grav. 13, 1996]

                                         Geant4: Analysis possible in one
                          d-rays          framework down to 250 eV.
                                         SMART-2 application
                  ESA Space Environment &
                  Effects Analysis Section




SPENVIS spectra

				
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posted:9/24/2012
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