SPENVIS & GEANT4 workshop

Faculty Club Leuven, Belgium
3 - 7 October 2005

On 3-7 October 2005, a combined workshop for the SPENVIS and GEANT4 Space applications communities will be held in the historic university town of Leuven, Belgium. The workshop venue is the Faculty Club of the Catholic University, situated in the beautifully restored Grand Beguinage, a UNESCO World Heritage Site.

The SPENVIS workshop will take place on 3-4 Oct, the Geant4 workshop will follow on 6-7 Oct, with a joint session in the morning of 5 Oct.

Workshop goals

Organising committee

Scientific committee


Workshop goals

The SPENVIS workshop is the second in a series that started at ESTEC in 2002. The emphasis during the SPENVIS workshop will be on user experience and requirements for future developments. We aim for an informal workshop with a limited number of presentations (and a poster session) which can serve as starting points for round table discussions addressing specific developments and applications. The programme is deliberately kept open to allow users to actively participate in the organisation. If you have inputs or suggestions for the workshop programme, please send a note to D. Heynderickx.

Several GEANT4 based radiation effects packages are now available or under development, which are or will be implemented in the SPENVIS user interface. In view of these developments, we opted for a combined workshop where users and developers of both communities can meet and interact.

The GEANT4 Space Users' workshop follows the events organised at ESTEC in 2003 and Vanderbilt University in 2004. The focus will be on new results for component, sensor, and shielding analyses, as well as on developments for Exploration and Science missions. Users are invited to highlight new requirements based on their applications.

More information on SPENVIS and GEANT4 space applications can be found at http://www.spenvis.oma.be/ and http://geant4.esa.int/, respectively.

Organising committee

D. Heynderickx (BIRA)
P. Nieminen (ESA/ESTEC)
H.D.R. Evans (ESA/ESTEC)
B. Quaghebeur (BIRA)
J. Wera (BIRA)
T. Somers (BIRA)

Scientific committee

K. Amako (KEK)
J. Apostolakis (CERN)
M. Asai (SLAC)
H.D.R. Evans (ESA/ESTEC)
D. Heynderickx (BIRA)
A. Mohammadzadeh (ESA/ESTEC)
P. Nieminen (ESA/ESTEC)
R. Reed (Vanderbilt University)

Programme (abstracts)

Monday 3 October

Opening Session

11:00 Welcome address
11:30 Review of SPENVIS (D. Heynderickx, BIRA)


14:00 Overview of new work packages for the next SPENVIS phase (D. Heynderickx, BIRA)
14:30 Spacecraft charging issues (A. Hilgers, ESA)
15:00 Development of the Spacecraft Plasma Interaction Guidelines and Handbook (J. Demol, BIRA)
15:20 Plasma simulation tools at ESA for spacecraft plasma interactions (A. Hilgers, ESA)
15:40 Discussion

16:30 Other models and tools (D. Heynderickx, BIRA)
17:00 Data base tools: an SQL layer around CDF (K. Stegen, BIRA)
17:20 Third party software implementation in SPENVIS (B. Quaghebeur, BIRA)
17:40 Discussion

Tuesday 4 October


09:00 Treatment of solar cell degradation in SPENVIS (S. Taylor, ESA)
09:30 Displacement Damage Dose Approach For Determining Solar Cell Degradation In Space (S. Messenger, NRL)
10:00 Prediction of space degradation of multijunction cells (J. Bourgoin, GESEC R&D)
10:30 Discussion

11:30 Overview of the Solar proton models currently implemented in SPENVIS (B. Quaghebeur, BIRA); Update of the ESP model for solar proton risk assessment (M.A. Xapsos, NASA/GSFC)
11:45 Implementation of the International Standard (ISO 15390) Galactic Cosmic Ray model in SPENVIS (B. Quaghebeur, BIRA)
12:00 Trapped radiation models (D. Heynderickx, BIRA)
12:20 Energetic Particle Telescope (EPT): Configurations for Characterizations of the Space Radiation Environment (M. Cyamukungu, CSR)
12:40 Discussion


14:30 The SPENVIS sector analysis tool (B. Quaghebeur, BIRA)
15:00 SEE models and algorithms (E. Daly, ESA/ESTEC)
15:30 ECSS on radiation effects (E. Daly, ESA/ESTEC)

16:30 Round table on user requirements
  • using SPENVIS stand-alone
  • radiation environment model updates
  • single event tools
  • spacecraft charging
  • other

Wednesday 5 October

Joint SPENVIS-GEANT4 Session

09:00 Introduction to and status report of Geant4 (M. Asai, SLAC)
10:00 Status and Plans for Geant4 Hadronics (D. Wright, SLAC)
10:30 Validation of Geant4 Physics Models (M.G. Pia, INFN)
10:50 Recent Developments and Validation of the Geant4 Standard Electromagnetic Package (V. Ivantchenko, CERN)
11:10 Discussion on Geant4 status and developments

12:00 Implementation of the MAGNETOCOSMICS Geant4 Code into SPENVIS (L. Desorgher, University of Bern)
12:20 Geant4-Based Microdosimetry Analysis Tool GEMAT (F. Lei, QinetiQ)
12:40 Discussion on Geant4 implementation issues in SPENVIS

Joint SPENVIS-GEANT4 Session

14:30 SPENVIS Integration of Mulassis: A 1-D Geant4 Radiation Transport Code (H. Evans, ESA)
15:00 GRAS: A General-Purpose 3D Modular Simulation Tool for the Space Environment Effect Analysis (G. Santin, ESA)
15:30 Comparison between GRAS and MULASSIS (R. Lindberg, ESA)
15:50 Transport Code Comparisons/Benchmarking Using SPENVIS: Earth Orbit Environment (B. Reddell, The Boeing Company)

Thursday 6 October

GEANT4 Session I

09:00 A Particle Monitor for LISA Pathfinder and Gravity Probe-B Gyroscope Charging in Low-Earth Orbit (P. Wass, Imperial College London)
09:20 Geant4 Model of SIXS Particle Instrument and Preliminary Simulation Results (J. Lehti, ASRO)
09:40 Geant4 Simulation of the GSEM Radiation Monitor (D. Haas, DPNC Genève)
10:00 Geant4 Simulation of the Design of a Packaging for Solid-State Radiation Monitoring Sensors (R. Capra, INFN)
10:20 Simulation of Radiation Monitors for Future Space Missions (B. Tomé, LIP)
10:40 Discussion on requirements for instrument design

11:40 The DESIRE Project: Geant4 Simulations of the Columbus/ISS Radiation Environment (T. Ersmark, KTH Stockholm)
12:00 Theoretical modelling of the Inner Zone Using Geant4 Simulations as Inputs (M.D. Looper, The Aerospace Corp.)
12:20 Discussion on requirements for ISS/LEO missions

GEANT4 Session II

14:10 Application of RADSAFE to Investigate Single Event Effect Basic Mechanisms in Modern Technologies (R. Reed, Vanderbilt University)
14:30 A Simulation Tool for the Calculation of NIEL in Arbitrary Materials Using Geant4 - Some New Results (K. Thiel, University of Cologne)
14:50 Discussion on requirements for component engineering analyses

15:30 Mars Radiation Environment Characterisation - a Geant4-Based Model (A. Keating, LIP)
15:50 The PLANETOCOSMICS Geant4 Application (L. Desorgher, University of Bern)
16:10 Modelling the Martian Subsurface Radiation Environment (L.R. Dartnell, University College London)
16:30 Simulation for Radiation Shielding in Interplanetary Manned Missions (S. Guatelli, INFN)
16:50 Geant4 Anthropomorphic Phantoms: Models of the Human Body for Space Radiation Protection Studies (S. Guatelli, INFN)
17:10 The Geant4-DNA Project (M.G. Pia, INFN)
17:30 Discussion on requirements for exploration missions

Friday 7 October

GEANT4 Session III

09:00 Sector Shielding Analysis Tool (SSAT) Computation Automation Using UNIX AWK and MSC/NASTRAN FEM Model (A. Aguilar, EFACEC)
09:20 Space System Analysis Using CAD/STEP Files in NOVICE (T. Jordan, E.M.P. Consultants)
09:40 Geant4 Simulation of Very Low Energy Electromagnetic Interactions (R. Capra, INFN)
10:00 Space Application of Geant4 for the Japanese X-Ray and Gamma-Ray Mission (Y. Terada, RIKEN)
10:20 Geant4 Space Applications in Japan (cancelled)
10:40 Planned ESA Geant4 Activities (P. Nieminen, ESA)

11:30 Discussion on requirements for new computational tools
12:00 Geant4 Technical Forum

GEANT4 Session IV

14:15 Splinter discussions
16:00 Workshop conclusions

Author: D. Heynderickx (BIRA)
Last update: 11 August 2005