Benchmarking ionizing space environment models

Sebastien Bourdarie (1) , Christophe Inguimbert (1) , Denis Standarovski (2) , Jean-Roch Vaillé (3, 4) , Angelica Sicard-Piet (1) , Didier Falguere (1) , Robert Ecoffet (2) , Christian Poivey (5) , Eric Lorfèvre (2)

1 ONERA - The French Aerospace Lab [Toulouse]
2 CNES - Centre National d'Études Spatiales [Toulouse]
3 IES - Institut d’Electronique et des Systèmes
4 RADIAC - Radiations et composants
5 ESTEC - European Space Research and Technology Centre

In-flight feedback data are collected, such as displacement damage doses, ionizing doses, and cumulated Single Event upset (SEU) on board various space vehicles and are compared to predictions performed with: proton measurements performed with spectrometers data on board the same spacecraft if any and protons spectrum predicted by the legacy AP8min model and the AP9 and Onera Proton Altitude Low models. When an accurate representation of the 3-D spacecraft shielding as well as appropriate ground calibrations are considered in the calculations, such comparisons provide powerful metrics to investigate engineering model accuracy. To describe >30 MeV trapped protons fluxes, the AP8 min model is found to provide closer predictions to observations than AP9 V1.30.001 (mean and perturbed mean).

Mots clés: RADIATION BELTS; SPACE RADIATION; BENCHMARK OF IONIZING SPACE ENVIRONMENT MODELS (BISE); AP8-AP9 MODELS; SPACE ENVIRONMENT SPECIFICATION MODELS

Domaines: Physique de l'espace [physics.space-ph]

Sebastien Bourdarie, Christophe Inguimbert, Denis Standarovski, Jean-Roch Vaillé, Angelica Sicard-Piet, et al.. Benchmarking ionizing space environment models. IEEE Transactions on Nuclear Science, 2017, 64 (8), pp.2023-2030. ⟨10.1109/TNS.2017.2654687⟩. ⟨hal-01727740⟩