P. Nieminen, E. Daly, A. Mohammadzadeh, H.D.R. Evans, G. Santin ESA Space Environment & Effects Analysis Section ESA Geant4 Activities P. Nieminen, E. Daly, A. Mohammadzadeh, H.D.R. Evans, G. Santin ESA-ESTEC

Recent and on-going Geant4-related R&D funded by ESA 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]

Upcoming Geant4 R&D and other activities 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: 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 Radiation Shielding and Effects (Geant4 models, open competition) Radiation Exposure and Mission Strategies for Interplanetary Manned Missions (Geant4 applications, open competition)

MULASSIS: WWW tool for shielding calculations ESA Space Environment & Effects Analysis Section MULASSIS: WWW tool for shielding calculations

MULASSIS: WWW tool for shielding calculations ESA Space Environment & Effects Analysis Section MULASSIS: WWW tool for shielding calculations

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

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

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

SREM on PROBA: protons and electrons ESA Space Environment & Effects Analysis Section SREM on PROBA: protons and electrons SREM

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

Construction of COLUMBUS geometry 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 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/ Neutrons

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

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

HERMES X-Ray Spectrometer on Mercury Planetary Orbiter ESA Space Environment & Effects Analysis Section HERMES X-Ray Spectrometer on Mercury Planetary Orbiter PIXE from solar proton events

BESSY-II data HERMES X-Ray Spectrometer on Mercury Planetary Orbiter 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 framework down to 250 eV. SMART-2 application -rays

ESA Space Environment & Effects Analysis Section SPENVIS spectra