Hiroshima, th August 2015 S. Ibarmia, P. Truscott On behalf of the CIRSOS team

Outline  What is CIRSOS?  Heritage  Radiation specific required features  Key technologies and framework architecture  Simulation overall flow  Demo...  Frame

CIRSOS It is an ESA funded R&D activity (ITT AO/1-7336/12/NL/AF) aimed to develop a full radiation simulation framework that:  Efficiently supports collaborative and iterative work  Provides interfaces with industrial radiation modeling tools  Allows end-to-end radiation simulation from particle environment to effects calculation  On complex 3D S/C and P/L geometrical models  And allowing both, high energy particle propagation and charging/plasma effects on dielectrics Project team: International team led by RadMod Research Start date: Oct 2013  Frame

Heritage CIRSOS comes from the merging/evolution of two past ESA R&D activities:  ELSHIELD, an activity f ocused on:  The development of new EM models to improve high energy electron propagation  Evaluate the possibility of coupling Geant4 and SPIS (Space Plasma Interaction System)  And apply it to the simulation of deep dielectric charging  REST-SIM, a simulation framework for the assessment and analysis of radiation effects for the instruments and payloads of ESA’s Cosmic Version Programme  Frame

Radiation required features  Simulation possibilities: G4/GRAS FMC, RMC and SSAT Multi-target successive RMC 1-stage and 2-stage MC: Combining FMC and RMC  Primary definition: Import from SPENVIS, OMERE and/or user-defined Tallying environment at interface surface for 2-stage MC  Physics: Predefined and user-defined options  Geometry: Import GDML files or set up, run and import files from ESABASE2 and FASTRAD.  Frame

 Analysis: Parametric parallel analysis All GRAS analysis modules available through GUI Scoring in GMSH mesh geometries for exchange with SPIS Response function (for folding with different prim spectra)  Simulation run: Definition of host environments Definition of num. of processes/host Interactive or scheduled execution  Post-processing manager: Provide built-in visualization and plotting capabilities for fast analysis of results Provide exporting formats to other advanced post-processing suites  Frame Radiation required features

Key technologies Geant4 as the high energy particle MC propagator  With GRAS as its specific analysis and application core SPIS, a tool able to model  charging in GEO, LEO or other environments,  natural and artificial plasmas (EP, arbitrary plasma sources...),  surface physics: secondary emissions, photo-emission, surface and volume conductivity…  volume physics: electrostatic, electromagnetism, kinetic od fluid description, collisions…  multi-scale models: spacecraft, equipment, even microscopic scale for ESD modelling... SPIS website:  Frame

Key technologies Python and PyQT – Main programming language, managing and GUI NumPy, SciPy & Matplotlib – Post-processing MySQL – Internal database  Frame

 User manager: to set up a single users (anonymous, without login) or multi user environment (with registration and login)  Project manager: all configuration and run parameters, user inputs, run results, post-processing products,... are organised in projects.  Environment manager: to set up connections to a SPENVIS server and import environment spectra from SPENVIS, OMERE or via direct user file import.  Geometry manager: to import GDML files or set up, run and import files from ESABASE2 and FASTRAD.  Charging manager: to set up the parameters SPIS.  Application manager: to set up the parameters for the selected Radiation simulation tool (GRAS FMC, RMC, SSAT).  Simulation manager: define host environments for simulation runs and schedule the run execution  Post-processing manager: visualise and plot results, apply response functions and user defined functions.  Frame Framework modules

Simulation overall flow

DEMO....

Status and future  Already achieved G4/GRAS FMC, RMC and SSAT Done Multi-target successive RMC In progress 1-stage and 2-stage MCIn progress Tallying at interface surface for 2-stage MCIn progress Primaries from SPENVIS, OMEREDone Primaries user-definedDone Predefined physics listsDone User-defined physics by componentsIn progress Import GDML filesDone Import GMSH filesDone Set up, run and import from FASTRADDone Set up, run and import from ESABASE2Done  Frame

Status and future  Already achieved (cont.) Parametric parallel analysis First version All GRAS analysis modules available Done Scoring in GMSH mesh geometries Done Definition of host environments Done Definition of num. of processes/hostDone Interactive or scheduled executionDone Built-in visualization and plottingDone Other post-processing formats exportingIn progress Fist release: End of 2015? Availability: JUICE teams. Others ask ESA  Frame