Physics Domain - research topics of the Physics, Instrumentation, Environment, Space department (DPHY)
Scientific Officer
PHY research topics of the Physics, Instrumentation, Environment, Space department
- Models and measurements of the space environment DPHY
- Effects of the aerospace radiative environment on onboard systems DPHY
- Interaction of the space environment with materials DPHY
- Charging and electrostatic discharges on satellites DPHY
- Lightning, plasma and electric thrusters DPHY
- Instrumentation and metrology using laser spectroscopy DPHY
- Cold atom inertial sensors DPHY
- High-performance space accelerometry DPHY
- Micro/nano systems (MEMS/NEMS) and miniature inertial sensors DPHY
PHY stands for the Physics Scientific Domain of ONERA
Models and measurements of the space environment
DPHY Angélica Sicard, Sébastien Bourdarie [POC name.surname@onera.fr]
- Radiation belts
- Physical modeling
- Radiation environment specification
- Data assimilation, learning
- Radiation monitor
Examples
![Capteur Protons Basse énergie](/sites/default/files/recherche/phy/SAR-ISAR-800.jpg)
Low-energy proton sensor With the new stationing profiles for geostationary satellites, satellites are spending more time in the radiation belts. The few measurements available in such orbits show that current engineering models underestimate proton fluxes with energies between 1 and 15 MeV. A new detector head compatible with the ICARE-NG instrument (photo) developed by CNES, ONERA and EREMS has therefore been designed by ONERA and is on board an ADS-built EutelSat satellite.
![GREEN (Global Radiation Earth Environnement)](/sites/default/files/recherche/phy/green-400.jpg)
![Le projet SafeSpace](/sites/default/files/recherche/phy/safespace-400.jpg)
Effects of the aerospace radiative environment on embedded systems
DPHY Guillaume Hubert, Laurent Artola . [POC name.surname@onera.fr]
- Electronic systems
- Effects of radiation, singular effects (SEE)
- Cumulative effects
- Atmospheric natural radiation environment (NRE)
- Design hardening
- Avionics & space
Examples
![Réseau de spectromètres neutron](/sites/default/files/recherche/phy/chinstrap-400.jpg)
MUSCA SEP3-TERRIFIC multi-physics simulation platform Modeling singular-event failures in onboard electronics: radiative environment - radiation-matter interaction - semiconductor physics - circuit-level injection.
![Plateforme de simulation multi-physique](/sites/default/files/recherche/phy/terrific-400.jpg)
![Plateforme de simulation multi-physique](/sites/default/files/recherche/phy/terrific2-400.jpg)
Interaction of the space environment with materials
DPHY Christophe lnguimbert, Laurent Artola [POC name.surname@onera.fr]
- Effect of space radiation
- Materials
- Semiconductor
- Polymer
- Contamination
This theme offers the European space industry expertise in the effects of radiation on materials used in spacecraft. This applies to thermal control coatings (paints), semiconductor materials used in photoreceptors, and flexible membranes used in stratospheric balloons, which also operate in harsh radiation environments. ONERA has a wide range of experimental resources for simulating the radiative space environment, combined with resources for characterizing the physical properties of these materials (thermo/optical and electronic properties, desorption, contamination, plasticity). We also offer the means to simulate these effects numerically.
Examples
![Parc expérimental complet de simulation et d’analyse des effets de l’environnement spatial radiatif](/sites/default/files/recherche/phy/experimentalpark-400.jpg)
![Outils de simulation numérique de transport et des effets des radiations dans les matériaux](/sites/default/files/recherche/phy/simulations%20radiations-400.jpg)
Charging and electrostatic discharges on satellites
DPHY Sébastien Hess, Pierre Sarrailh. [POC name.surname@onera.fr]
- Charging in orbit
- Electrostatic discharges, arcs, induced conductivity
- Electrical aging
- Plasma, particle/plasma satellite interaction
- Electronic emission
- Surface analysis
Examples
![Charge électrique des poussières lunaires par le vent solaire](/sites/default/files/recherche/phy/charges1-400.jpg)
![Interaction des satellites avec les plasmas spatiaux et issus de la propulsion électrique](/sites/default/files/recherche/phy/charges2-400.jpg)
Lightning, plasma and electric thrusters
DPHY Paul-Quentin Elias, Denis Packan [POC name.surname@onera.fr]
- Lightning
- Plasmas, electric propulsion
- On-board instrumentation
- Plasma modeling
- High voltage and generators
- Magnetohydrodynamics
- Electrostatic discharges (ESD)
- Atmospheric risk characterization
Examples
![Le système de surveillance du risque Foudre](/sites/default/files/recherche/phy/risquefoudre-400.jpg)
![Le propulseur ECRA](/sites/default/files/recherche/phy/ecra-plaquette-400.jpg)
![Le banc Grifon](/sites/default/files/recherche/phy/grifon-400.jpg)
![La plateforme de simulation des plasmas TARANIS](/sites/default/files/recherche/phy/simu-plasma-foudre-400.jpg)
Instrumentation and metrology using laser spectroscopy
DPHY Michael Schermann, Myriam Raybaut [POC name.surname@onera.fr]
- Spectroscopy
- Thermometry, velocimetry
- Laser-induced fluorescence
- Spontaneous / coherent Raman scattering (CARS)
- Non-linear optics
- Laser diode absorption spectroscopy
- Optical oscillators and parametric amplifiers
- Controlling the spectral content of coherent sources
- Photo-acoustic spectroscopy
- Gas sensors, differential absorption lidar
- Laser diode absorption spectroscopy
- Frequency combs
- Quantum optics sensors
Examples
![Lidars pour la détection d’espèces gazeuses](/sites/default/files/recherche/phy/lidar-detection-400.jpg)
![Banc de spectroscopie Raman Cohérent femtoseconde](/sites/default/files/recherche/phy/cars2-400.jpg)
![Banc de spectroscopie Raman Cohérent femtoseconde](/sites/default/files/recherche/phy/cars1-400.jpg)
High-repetition-rate LIF imaging bench A 10 kHz LIF (laser-induced fluorescence) imaging bench has been developed to characterize unsteady flows and/or transient phenomena. An original application to the aluminum atom (Al) was developed and implemented on solid propellant flames containing aluminum particles, to image the fluorescence of aluminum evaporated by the droplets during combustion.
The very intense fluorescence signal from aluminum makes it easy to detect, despite the very harsh conditions (high temperature and pressure, high flame luminosity, highly diffusive medium) that have hitherto prevented diagnostics based on laser spectroscopy techniques from being carried out under representative conditions. The combination of high repetition rate and intense atomic tracer gives excellent contrast instantly. This laser metrology tool provides innovative solutions for non-intrusive analysis of difficult media.
![Capteurs de détection de gaz locale par photacoustique](/sites/default/files/recherche/phy/photoacoustique-400.jpg)
![Capteurs de détection de gaz locale par photacoustique](/sites/default/files/recherche/phy/photoacoustique2-400.jpg)
Cold atom inertial sensors
DPHY Nassim Zahzam, Myriam Raybaut [POC name.surname@onera.fr]
- Inertial sensors
- Cold atoms
- Atomic interferometry
- Gravimeters
- Electromagnetic wave sensing using Rydberg atoms
Examples
![Gravimètre quantique embarquable](/sites/default/files/recherche/phy/girafe2-400.jpg)
![Gravimètre quantique embarquable](/sites/default/files/recherche/phy/girafe1b-400.jpg)
![Hybridation entre un accéléromètre quantique et électrostatique pour la géodésie spatiale](/sites/default/files/recherche/phy/hybridation-quantique-electrostatique1-400.jpg)
![Hybridation entre un accéléromètre quantique et électrostatique pour la géodésie spatiale](/sites/default/files/recherche/phy/hybridation-quantique-electrostatique2-400.jpg)
High-performance space accelerometry
DPHY Joël Bergé, Manuel Rodrigues [POC name.surname@onera.fr]
- Electrostatic accelerometer, femto-g, pico-g
- Inertial sensor
- Satellite drag compensation, attitude control
- Geodesy
- Gravimetry
- Fundamental physics
Examples
![CHAMP, GRACE, GOCE, GRAFE-FO](/sites/default/files/recherche/phy/gracefo1-400.jpg)
![CHAMP, GRACE, GOCE, GRAFE-FO](/sites/default/files/recherche/phy/gracefo2-400.jpg)
CHAMP, GRACE, GOCE, GRACE-FO Space accelerometers developed at ONERA have flown in these missions dedicated to mapping the Earth's gravity field.
These missions define the reference geoid in geophysics.
Here, the twin satellites of the GRACE-FollowOn mission (NASA, continuation of GRACE) and its ONERA accelerometer.
![MICROSCOPE](/sites/default/files/recherche/phy/microscope1-400.jpg)
![MICROSCOPE](/sites/default/files/recherche/phy/microscope2-400.jpg)
Micro/nano systems (MEMS/NEMS) and miniature inertial sensors
DPHY Jean Guérard, Raphaël Levy [POC name.surname@onera.fr]
- MEMS, NEMS
- Micro/nano systems
- Vibrating inertial sensors
- Thin-film sensors
- 2D materials
Examples
![Accéléromètre tri-axe pour la navigation inertielle](/sites/default/files/recherche/phy/mems-nems1.jpg)
![Résonateur MEMS en quartz pour base de temps de précision](/sites/default/files/recherche/phy/mems2-400.jpg)
![Moyen de mesure en développement pour l’évaluation du coefficient d’échange convectif et de la température du gaz d’écoulements de statoréacteurs](/sites/default/files/recherche/phy/mems3-400.jpg)