Author details
Author's Published Works
Author details
Showing 1-25 of 31 results
- Sort
Filter Results
Show
Sort By
Results
New Model for the Plasma Electrons Fluxes (Part of GREEN Model)
A. Sicard;D. Boscher;D. Lazaro;S. Bourdarie;D. Standarovski;R. Ecoffet
A new specification model of low-energy electrons fluxes, included in the Global Radiation Earth ENvironment (GREEN) model, has been developed at ONERA. This model is based on several data sets, from low altitudes with National Oceanic and Atmospheric Administration-Polar Operational Environmental Satellites measurements to higher altitudes with POLAR, THEMIS, and Los Alamos National Laboratory (L...Show More
High-Energy Electrons in the Inner Zone
D. Boscher;S. Bourdarie;V. Maget;A. Sicard-Piet;G. Rolland;D. Standarovski
The existence of high-energy (E > 1 MeV) electrons in the inner zone is always a debatable issue. This paper aims at answering this question using both simulation-based and data-based measurement evidences. First, using NOAA measurements, in particular a proton channel contaminated by E > 1.2 MeV electrons, the slot filling was studied over solar cycles. Then, the found profiles were compared with...Show More
Impact of the Trapped Proton Anisotropy on the Ionizing Dose at Low Earth Orbits
Athina Varotsou;Pierre Pourrouquet;Romain Fonta;Daniel Boscher;Robert Ecoffet
2017 17th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2017 | Conference Paper |
The trapped proton anisotropy is not commonly taken into account in the radiation hardness assurance process for Low Earth Orbit missions. In this study, the impact of considering this characteristic of the trapped proton population is evaluated for the TID, Total Ionizing Dose, risk assessment at electronic component level. A specific development has been made in the OMERE tool and the realistic ...Show More
Improvements of FLUKA Calculation of the Neutron Albedo
Natacha Combier;Arnaud Claret;Philippe Laurent;Vincent Maget;Daniel Boscher;Alfredo Ferrari;Markus Brugger
This paper presents Monte-Carlo simulations based on the Fluka code aiming to calculate the contribution of the neutron albedo at a given date and altitude above the Earth chosen by the user. Results consist of a two-parameter distribution, the neutron energy and the angle to the tangent plane of the sphere containing the orbit of interest, and are provided by geographical position above the Earth...Show More
Is Carrington event in 1859 really worse than other recent extreme events?
2016 16th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2016 | Conference Paper |
The goal of this study is to try to answer the question: is Carrington event the worst event of all time? First, a state of the art on the 1859 Carrington event will be conducted, including recalling the sequence of events and the various data available. Then the second part will be devoted to the study of magnetic activity during the Carrington event in comparison with other more recent events. A...Show More
A New Proton Model for Low Altitude High Energy Specification
A model of high energy protons for low altitude (below 800 km) mission specification was developed. This model is based on the long duration NOAA measurement series. We used only the highest omnidirectional channel from SEM on board the old NOAA satellites, and the corresponding channel from SEM-2 on board the new NOAA ones, as the other channels are contaminated by electrons. This gives us a basi...Show More
In-Flight Measurements of Radiation Environment on Board the Argentinean Satellite SAC-D
D. Boscher;T. Cayton;V. Maget;S. Bourdarie;D. Lazaro;T. Baldran;P. Bourdoux;E. Lorfèvre;G. Rolland;R. Ecoffet
Measurements of the ICARE-NG/CARMEN-1 (Influence sur les Composants Avancés des Radiations de l’Espace-Nouvelle Génération/CARactérisatin et Modélisation de l’Environnement spatial) detector on board the low Earth orbit Argentinean satellite SAC-D are presented. Particle fluxes are obtained for electrons from 250 keV up to 3.2 MeV and protons from 12.8 MeV up to 190 MeV since September 2011. As th...Show More
Modelling ionospheric effects for L band GNSS receivers at high latitudes
The 8th European Conference on Antennas and Propagation (EuCAP 2014)
Year: 2014 | Conference Paper |
Cited by: Papers (1)
The main objective of this study was to figure out a relationship between space weather environment phenomena (linked to solar and geomagnetic activity) and ionospheric events that impact L-band operating satellite systems (scintillations, electron content gradients), especially satellite navigation services, in the Nordic European area. A simple empirical model to forecast index of rate of change...Show More
Unfolding JASON-2/ICARE-NG High-Energy Particles Measurements Using a Singular Value Decomposition Approach
V. Maget;S. Bourdarie;D. Lazaro;D. Boscher;G. Rolland;R. Ecoffet;E. Lorfèvre
This paper presents an enhanced approach to extract as much as possible information from raw measurements of a given solid-state detector. Here we focus on the benefits of a singular value decomposition approach applied to the special case of the CNES-JASON 2 mission. It allows us to extract more information from the sensor than a more traditional technique. Refined differential fluxes instead of ...Show More
Radiation Belt Activity Indices and Solar Proton Event Alarm
D. Lazaro;D. Boscher;S. Bourdarie;A. Sicard-Piet;G. Rolland;R. Ecoffet;E. Lorfèvre
In the frame of the ONERA-CNES CRATERRE project, which aims to organize studies around radiation belt specification models, the local database Ionizing Particle ONERA Database (IPODE), gathering measurements from many radiation detectors, is presented. Relying on this daily updated database, two radiation belt activity indices with electron flux measurement (> 300 keV and > 1.6 MeV) and one solar ...Show More
A new model of electron flux in the Slot Region has been developed at ONERA. This model is based on several data sets, low altitudes data as POES or SAC-C measurements, but also data at higher altitudes as HEO1, HEO3, ICO and CRRES measurements. This model provides mean electron flux between and for energies between 0.1 MeV and 3 MeV. This model includes a confidence level which takes into account...Show More
Radiation Belt Activity Indices and Solar Proton Event Alarm on the CRATERRE project web site
D. Lazaro;D. Boscher;S. Bourdarie;A. Sicard-Piet;G. Rolland;R. Ecoffet;E. Lorfèvre
2013 14th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2013 | Conference Paper |
Cited by: Papers (2)
Two Radiation Belt Activity Indices, based on electron flux measurement >300 keV and >1.6 MeV, and one Solar Proton Event Alarm, based on proton flux measurement >75 MeV, are developed for post events analysis. Both indices and alarm are plotted over the last 30 days on the CRATERRE project web site and are daily updated.Show More
ESA Next Generation Radiation Monitor
Laurent Desorgher;Wojciech Hajdas;Ilia Britvitch;Ken Egli;Xiaoqiang Guo;Yinhong Luo;Frédéric Chastellain;Carlos Pereira;Reto Muff;Daniel Boscher;Gunnar Maehlum;Dirk Meier;Petteri Nieminen
2013 14th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2013 | Conference Paper |
The ESA Next Generation Radiation Monitor (NGRM), currently under development, will be the successor of the ESA Standard Radiation Environment Monitor (SREM) that is still measuring near-Earth and interplanetary space radiation environment onboard 6 different spacecrafts. NGRM will measure protons from 2 MeV up to 200 MeV, electrons from 100keV up to 7MeV, as well as LET spectrum of ions. Compared...Show More
A new ONERA-CNES slot electron model
2013 14th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2013 | Conference Paper |
Cited by: Papers (4)
A new model of electron flux in the Slot Region has been developed at ONERA. This model is based on several data sets, low altitudes data as POES or SAC-C measurements, but also data at higher altitudes as HEO1, HEO3, ICO and CRRES measurements. This model provides mean electron flux between L=2 and L=4 for energies between 0.1 MeV and 3 MeV. This model includes a confidence level which takes into...Show More
Unfolding JASON-2/ICARE-NG high energy particles measurements using a Singular Value Decomposition approach
V. Maget;S. Bourdarie;D. Lazaro;D. Boscher;G. Rolland;R. Ecoffet;E. Lorfèvre
2013 14th European Conference on Radiation and Its Effects on Components and Systems (RADECS)
Year: 2013 | Conference Paper |
Cited by: Papers (3)
This paper presents an enhanced approach to extract as much as possible information from raw measurements of a given solid state detector. Here we focus on the benefits of a Singular Value Decomposition approach applied to the special case of the CNES — JASON 2 mission. It allows us to now obtain refined differential fluxes (instead of only coarse integral and differential ones) and extends their ...Show More
The Next Generation Radiation Monitor- NGRM
L. Desorgher;W. Hajdas;I. Britvitch;K. Egli;X. Guo;Y. Luo;F. Chastellain;C. Pereira;R. Muff;D. Boscher;G. Maehlum;D. Meier
2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC)
Year: 2013 | Conference Paper |
Cited by: Papers (4)
The ESA Next Generation Radiation Monitor (NGRM) will be the successor of the ESA Standard Radiation Environment Monitor (SREM) that is still measuring near-Earth and interplanetary space radiation environment onboard 6 different spacecrafts. NGRM will measure protons from 2 MeV up to 200 MeV, electrons from 100keV up to 7MeV, as well as LET spectrum of ions. Compared to SREM, NGRM will provide a ...Show More
Characterization of the Neutron Environment and SEE Investigations at the CERN-EU High Energy Reference Field and at the Pic du Midi
A new platform dedicated to the long-term characterization of the Atmospheric Natural Radiative Environment at mountain altitude (Pic du Midi, +2885 m) is presented. The performance of a high energy neutron spectrometer is established with measurements performed in a realistic neutron field and by comparison with the neutron monitors. A SEE-rate prediction approach is also used on a 90 nm SRAM mem...Show More
Experimental Measurements of the Cosmic-Ray Induced Neutron Spectra at Various Mountain Altitudes With HERMEIS
A. Cheminet;V. Lacoste;G. Hubert;D. Boscher;D. Boyer;J. Poupeney
Measurements performed with the High Energy Range Multisphere Extended IRSN System (HERMEIS) acquired by the French Aerospace Lab are presented and discussed. The detectors were calibrated at the Low Noise Underground Laboratory of Rustrel. Atmospheric neutron spectra were obtained at three altitudes (${+}500$ m, ${+}1000$ m and ${+}2885$ m) and the first results about the continuous measurements ...Show More
In Flight Measurements of Radiation Environment on Board the French Satellite JASON-2
Daniel Boscher;Sebastien A. Bourdarie;Didier Falguere;Didier Lazaro;Philippe Bourdoux;Thomas Baldran;Guy Rolland;Eric Lorfevre;Robert Ecoffet
This paper presents particle flux measurements (protons and electrons) obtained with the ICARE-NG detector on the JASON-2 orbit (1336 km alt., 66° incl.) for the period June 2008-Aug. 2010. At this altitude, the South Atlantic Anomaly is greatly broadened as compared to lower altitudes. Proton flux measurements are made in the range 27.5-290 MeV and electron flux in the range 1.6-3.6 MeV. A great ...Show More
Outer Electron Belt Specification Model
S. Bourdarie;A. Sicard-Piet;R. Friedel;T. P. O'Brien;T. Cayton;B. Blake;D. Boscher;D. Lazaro
Data assimilation techniques have already been developed and have shown to provide ldquothe bestrdquo estimate of the state of the electron radiation belts. Data assimilation proceeds in analysis cycles-in each analysis cycle, observations of the current (and possibly past) state of a system are combined with the results from a mathematical model (the forecast) to produce an analysis, which is con...Show More
Direct Data Assimilation Over Solar Cycle Time-Scales to Improve Proton Radiation Belt Models
Data assimilation technique has already been developed and proved its worth to provide dasiathe bestpsila estimate of the current state of the electron radiation belts. Data assimilation proceeds by analysis cycles. In each analysis cycle, observations of the current (and possibly, past) state of a system are combined with the results from a mathematical model (the forecast) to produce an analysis...Show More
Direct data assimilation over solar cycle time-scales to improve proton radiation belts models
2007 9th European Conference on Radiation and Its Effects on Components and Systems
Year: 2007 | Conference Paper |
A new approach for accurately restoring the dynamics of the electron radiation belts has already been developed and proved its worth. Here we present its adaptation to the case of proton radiation belts at solar cycle time-scale. Many deficiencies of AP8 models can be overcome thanks to direct data assimilation. An anticorrelation between the <10 MeV protons radiation belts and solar activity is p...Show More
Impact of magnetic storms on the dark current of the space infrared camera ISO/ISOCAM
A. Claret;D. Boscher;O. Boulade;S. Bourdarie;P. Gallais;P. Laurent;G. Rolland
2007 9th European Conference on Radiation and Its Effects on Components and Systems
Year: 2007 | Conference Paper |
Cited by: Papers (2)
The two detectors of the ISOCAM camera on board the ISO spacecraft have performed nominally for the entire duration of the mission. Their main properties (dark current level, noise and responsivity) have been monitored on a daily basis in order to perform their trend analysis. The dark current level averaged over the whole detectors sometimes significantly increased during one or several days befo...Show More
A Model for the Geostationary Electron Environment: POLE, From 30 keV to 5.2 MeV
In 2003, a model for the geostationary electron environment: POLE (Particle ONERA-LANL Environment) has been developed at ONERA/DESP. This model is based on the full complement of Los Alamos National Laboratory geostationary satellites, covers the period 1976–2001 and is valid from 30 keV up to 2.5 MeV and takes into account the solar cycle variation. Over the period 1976 to present, three differe...Show More
A model for the geostationary electron environment: POLE, from 30 keV to 5.2 MeV
2005 8th European Conference on Radiation and Its Effects on Components and Systems
Year: 2005 | Conference Paper |
In 2003, a model for the geostationary electron environment: POLE (particle ONERA-LANL environment) has been developed at ONERA/DESP. This model, based on the full range of Los Alamos National Laboratory geostationary satellites, covering the period 1976-2001, is valid from 30 KeV up to 2.5 MeV and takes into account the solar cycle variation. Over the period 1976 to present, three different detec...Show More
IEEE Account
Purchase Details
Profile Information
Need Help?
- US & Canada: +1 800 678 4333
- Worldwide: +1 732 981 0060
- Contact & Support
- About IEEE Xplore
- Contact Us
- Help
- Accessibility
- Terms of Use
- Nondiscrimination Policy
- Sitemap
- Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.
© Copyright 2025 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.