Mars neutron radiation environment from HEND/Odyssey and DAN/MSL observations
| Autor: | A.V. Nosov, M. L. Litvak, B. Bakhtin, Anton Sanin, I. G. Mitrofanov, L.M. Martinez-Sierra, A.S. Perkhov, Insoo Jun |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Equivalent dose Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Astronomy Astronomy and Astrophysics Cosmic ray Mars Exploration Program Albedo Neutron radiation 01 natural sciences Space and Planetary Science Physics::Space Physics 0103 physical sciences Dynamic Albedo of Neutrons Neutron detection Neutron Astrophysics::Earth and Planetary Astrophysics Nuclear Experiment 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Planetary and Space Science. 184:104866 |
| ISSN: | 0032-0633 |
| DOI: | 10.1016/j.pss.2020.104866 |
| Popis: | High Energy Neutron Detector (HEND) onboard the orbital Mars Odyssey mission and Dynamic Albedo of Neutrons (DAN) onboard the Curiosity rover are measuring neutron albedo of Mars produced by Galactic Cosmic Rays (GCR). The numerical simulations of HEND/Odyssey and DAN/MSL and comparison between model predictions and experimental data has been implemented to unfold Mars neutron spectra both on orbit and surface and evaluate biological impact contributed by neutrons. It was found that the maximum neuron equivalent dose rate by neutrons below 10 MeV could be as high as 45 ± 7 μSv per day, which is about 6–7% of the expected charged-particle dose equivalent rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect