SESSION I Wednesday, 1 October
Radiation environments
Chairs: Hugh evans, Insoo Jun
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Queen Elisabeth Hall
I1 11:05 - 11:20
NORM on ASBM: Probing the High-Energy Radiation Environment from a Unique Orbit
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Authors: I. Sandberg(1)
1. Space Applications & Research Consultancy (SPARC), Greece
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Presenting author: Ingmar Sandberg
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ASBM/NORM provides high resolution measurements of electrons within 0.4–6 MeV and protons within 10-90 MeV along TAP HEO. We review data and show that NORM is an invaluable asset for updating/validating space radiation environment models.
I2 11:20 - 11:35
Probing In-Orbit Radiation Environment with Sentinel-1 A & B Single Event Effects on Payload Mass Memories​
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Authors: V. Pietrosanti(1), S. Francola(2), R. Mancini(2), G. Ferrari(2), A. Leo(2), R. Marec(3)
1. University of Rome Tor Vergata, Italy, 2. Thales Alenia Space Italy, Italy, 3. Thales Alenia Space, France
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Presenting author: Virginia Pietrosanti
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Sentinel-1A and 1B in-orbit SEE data from mass memory units are analyzed. Simulated SEE rates, derived from ground data and detailed CAD models, are used to assess space radiation models, space weather and shielding effects.
I3 11:35 - 11:50
Measurement of Protons and Heavier Ions With a Single Layer Timepix Detector in Space
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Authors: S. Gohl(1), B. Bergmann(2), H. Cintas(3), D. Garvey(1)
1. IEAP, CTU in Prague, Czech Republic, 2. Insitute of Experimental and Applied Physics, Czech Technical University in Prague, Czech Republic, 3. IEAP CTU, Czech Republic
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Presenting author: Stefan Gohl
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The Space Application of Timepix Radiation Monitor (SATRAM) measures radiation dose, stopping power spectrum, and has particle species separation capabilities. Bayesian unfolding is used to determine the proton spectrum from SATRAM’s single-layer sensor.
I4 11:50 - 12:05
Spatial Distribution of Terrestrial Neutron Flux in a Five-story Concrete Building​
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Authors: Y. Watanabe(1), H. Tanaka(1), Y. Horai(1), T. Kato(2)
1. Kyushu University, Japan, 2. Socionext Inc, Japan
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Presenting author: Yukinobu Watanabe
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The spatial and energy distributions of terrestrial neutron flux were measured inside a five-story concrete building. The results were well reproduced by PHITS simulations using the cosmic-ray model PARMA.
I5 12:05 - 12:20
Pulse Shape Identification of Neutron Reaction Products for in-situ Radiation Monitoring
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Authors: Q. Gibaru(1), P. Caron(1)
1. ONERA, France
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Presenting author: Quentin Gibaru
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Simulations and experimental measurements of transients generated in neutron irradiated SSDs are performed. Simulated results are used to identify neutron reaction products by pulse shape analysis and machine learning.
I6 12:20 - 12:35
Characterisation of the Radiation Field in LHC IR4 using a Timepix Radiation Monitor and FLUKA simulations
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Authors: D. Prelipcean(1), G. Lerner(1), R. Garcia(1))
1. CERN, Switzerland
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Presenting author: Daniel Prelipcean
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The Timepix3 Radiation Monitor measured ionising dose and charged particle fluence at LHC IR4; directionality and stopping power were also assessed and results compared with dedicated FLUKA simulations for validation.
POSTERS
PI-1
Safe Avionics Reuse Through Mission-Specific Radiation Modeling​
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Authors: E. Vacca(1), A. Cui(1), S. Azimi(1), L. Sterpone(1), M. Cardi(2), F. Parigi(2), M. Pavoni(2), D. Calvi(2), A. Zanotti(2), F. Corradino(2), E. Sanguineti(2), F. Nichele(3), F. Perez lissi(4), P. Martino(4), I. Carnelli(4)
1. Politecnico di Torino, Italy, 2. Tyvak International srl, Italy, 3. Tyvak International, Italy, 4. European Space Agency, Netherlands
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Presenting author: Eleonora Vacca
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We assess reusing HERA CubeSat avionics for the upcoming RAMSES mission to Apophis by simulating radiation exposure on the CubeSat structure with GEANT4, through a mission-specific radiation environment analysis.
PI-2
Potential Feasibility of Using Deposition Energy Spectra from In-Flight Single-Layer Silicon Detectors for SEE Rate Estimation
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Authors: J. Wang(1), X. Zhu(1), G. Shen(1), B. Yuan(1), C. Wang(1), X. Xu(1), L. Zhang(1), Y. Ma(1)
1. National Space Science Center, Chinese Academy of Sciences, China
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Presenting author: Jieyi Wang
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In-flight single-layer silicon detectors on M15 and M16 satellites recorded deposition energy spectra, where SEE-silicon spectrum differences arise from geometric chord-length effects, enabling single-area silicon detectors to estimate SEE rates.
PI-3
Particle Environment Measured On-Board SVOM during First Year at Low Earth Orbit​
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Authors: A. Claret(1), L. Bouchet(2), O. Godet(2), S. Schanne(1)
1. CEA, France, 2. IRAP, France
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Presenting author: Arnaud Claret
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This paper presents the in-flight feedback from the Sino-French SVOM (Space based Variable Object Monitor) space mission from the point of view of the South Atlantic Anomaly intercepted in LEO orbit at 625 km.
PI-4
Space Radiation Monitor Response Functions Construction: Satellite Geometry Guidelines
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Authors: R. Bocherens(1), P. Caron(1), S. Bourdarie(1), A. Woelffle(2)
1. Onera, France, 2. DGA, France
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Presenting author: Remi Bocherens
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IReconstructing particle fluxes in radiation belts requires in-flight measurements and the detector's response function. Since satellite geometries are often confidential, this study proposes guidelines for using degraded geometries to preserve the quality of reconstructed data.
PI-5
Monte Carlo Magneto-Atmospheric Package for SEP and GCR Atmospheric Showers
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Authors: L. Favier(1), F. Miller(2), P. Laurent(3)
11. AIM CEA-IRFU / Nucletudes, France, 2. Nucletudes, France, 3. AIM CEA-IRFU, France
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Presenting author: Leo Favier
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A Magneto-atmospheric Monte-Carlo simulation package is developed to simulate the propagation of Solar Energetic Particles and Galactic Cosmic Rays from the exosphere to the ground to calculate prompt and albedo particle fluxes, and energy spectra.