The current version of SPENVIS is 4.6.11.  Because of the complexity of some models and simulations, the access to the models is provided in two flavours: as normal or advanced user.

Upgrades in 4.6.11 are
  • CESI CTJ30 and CTJ-LC solar cells in EQFLUX and MC-SCREAM
  • DICTAT 3.1
  • IGRF-13 coefficients

New features since 4.6.10 are
  • Slot Region Radiation Environment Models (SRREM)
  • Solar Accumulated and Peak Proton and Heavy Ion Radiation Environment (SAPPHIRE) models
  • coupling SPENVIS-4 and SPENVIS-NG for running the latest versions of GRAS, MULASSIS and IRENE
Other upgrades in 4.6.10 are
  • IRENE (AE-9/AP-9) trapped proton and electron model version 1.5
  • Geant4 based tools GRAS (4.0), MULASSIS (1.26)
  • AZUR 3G30 cells in MC-SCREAM
  • increase size of upload trajectory file

New features since 4.6.9 are
  • enable
  • implementation of new solar cell types (Azur 3G30 - SR-NIEL 21 eV and Spectrolab XTJ Prime)
Other upgrades in 4.6.9 are
  • small improvements for users accessing SPENVIS via the SSA Space Weather Portal
  • update of "user defined trapped solar and electron spectra" functionality (remind: only available for advanced user)
  • minor updates/corrections of the help pages
  • correction of NIEL units

New features since 4.6.8 are
  • user-defined radiation belt flux spectrum upload
  • INFN Screened Relativistic NIEL Calculator
  • adaptation of the SPENVIS system to allow ESA's SSA user credential access
Other upgrades in 4.6.8 are
  • extension of the ion energy range (up to 100 GeV/n) for GCR models
  • upgrading the geomagnetic field IGRF/DGRF model to current epoch
  • implementation of new solar cell types (Azur Gaget, Emcore ATJ, Spectrolab XTJ and "SR NIEL 21 eV")
  • addition of user options for Grun model and DICTAT
  • updating AE-9/AP-9 trapped proton and electron model to version 1.3
  • fixing GRAS normalisation to unit incident current for both MULASSIS and GDML modes
  • including the mission duration in the GCR spectrum normalisation for GEANT4 applications

New models/tools since 4.6.7 are
  • AE-9/AP-9 (1.0) trapped proton and electron model
  • Radiation dammage coefficients for solar cells AZUR 3G28 and Spectrolab UTJ and XTJ
  • Independent Geant4 GPS macro generator (see Definition of source particles) including trapped particles, solar protons or GCRs as possible mission based source
  • Interface to GRAS 3.1 (Geant4 Radiation Analysis for Space) allowing new analyses (path length, LET and charging)
Other upgrades in 4.6.7 are
  • Geant4 based tools GRAS (3.1), MULASSIS (1.23) and GEMAT (2.8)
  • Automatic selection of the Geant4 physics scenario for GRAS (3.1), MULASSIS (1.23) and GEMAT (2.8)
  • Definition of circular orbit in SAPRE (orbit generator) based on Jochim & Eckstein 1980

New upgrades in 4.6.6 are
  • Single Event Upsets for long-term radiations
  • The "combined run" feature has been reviewed
  • Jupiter Radiation Environment and Effects Models and Mitigation (JOREM) has been upgraded
  • The layout of the "Output" has been revisited
  • Extrapolations inside PSYCHIC model have been improved
  • a new computation of the GRAS normalization factor has been implemented

New models since 4.6.5 are
  • Particle/wall interaction model
  • MASTER model
  • MULASSIS look-up tables for calculating shielded flux (MFLUX)
  • Implementation of Pelliccioni data for calculating effective dose and ambient dose equivalent (SMUL)
  • Jupiter Radiation Environment and Effects Models and Mitigation (JOREM)
    • JOvian Specification Environment(JOSE) models,
    • GA shield optimiser,
    • Planetocosmics-J
Other upgrades in 4.6.5 are
  • Implementation of StÝrmer upgrade for calculating the magnetic cut-off for solar and galactic cosmic ray particles

New models since 4.6.4 are
  • CREME96 (Tylka et al, 1997) SEP & GCR models;
  • Interface to GRAS software (Geant4 Radiation Analysis for Space);
  • Simple contamination model based on view factor computation;
  • Interface to ODI software (see Data base queries).
Other upgrades in 4.6.4 are
  • Rearrangement of the radiation sources causing SEU allowing to access separately
    • Short-term solar particle fluxes,
    • Galactic cosmic ray fluxes
    ("Solar proton fluences" has been renamed as "Long-term solar particle fluences");
  • New algorithm for Single Event Upset rates by direct ionisation (constant LET, variable LET, slowing & stopping ions);
  • Adding coverglass type for solar cell damage equivalent (see RDC converter);
  • Earth-centred hyperbolic "orbit" (see Coordinate generator);
  • New file format for trajectory upload (see Coordinate generator);
  • Project sharing facility (here);
  • Additional ECSS documentation: ST10-12C and ST20-06C.

New models since 4.6.3 are
  • Mars Energetic Radiation Environment Models (MEREM);
  • Relative Damage Coefficient converter;
  • Magnetocosmics and Planetocosmics Geant4 tools;
  • NeQuick model (see Ionosphere constituent fluences);
  • PSYCHIC model (see Solar proton fluences);
  • MC-SCREAM model for solar cell degradation.
Other upgrades in 4.6.3 are
  • Single Event upset rates (19 predefined devices, user-defined path length distribution, non-constant LET across the sensitive volume);
  • IGE-2006 wizard;
  • Geant4 tools (user interface);
  • index page (help).
  • Result export facility (here)

New feature in 4.6.2 is
  • Pre-release of a java-based geometry definition tool (here).
Upgrades made in 4.6.2 are
  • Help pages (correction of broken links);
  • ECSS space environment standard;
  • SPENVIS kernel.

Features for advanced users include
  • switching to another planet and accessing Martian or Jovian models;
  • execution of Combined Run;
  • additional options in some models (e.g. orbit generator, NIEL, SEU rates);
  • upload of data files (e.g. trajectory, Geant4 geometry, RDC).

Currently the use of SPENVIS is free of charge.  In a near future, a subscription-based service offering various options will be implemented.  However an access free of charge will still be offered.  This access will be fully functionnal but with reduced quota and result persistence. 
June 7--9, 2010: SPENVIS User's Workshop in Mechelen (Belgium).  Read more


SPENVIS is developed by a consortium led by the Royal Belgian Institute for Space Aeronomy for ESA's Space Environments and Effects Section through its General Support Technology Programme