Europlanet Science Congress 2020
Virtual meeting
21 September – 9 October 2020
Europlanet Science Congress 2020
Virtual meeting
21 September – 9 October 2020
EPSC Abstracts
Vol.14, EPSC2020-1053, 2020
https://doi.org/10.5194/epsc2020-1053
Europlanet Science Congress 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Experience of DAN investigation of subsurface water on Mars onboard the rover Curiosity for the future ADRON-RM experiment on the ExoMars rover

Sergei Nikiforov, Igor Mitrofanov, Maxim Litvak, Maya Djachkova, Dmitry Golovin, Denis Lisov, Alexey Malakhov, Maxim Mokrousov, Anton Sanin, and Vladislav Tretyakov
Sergei Nikiforov et al.
  • Space Research Institute (IKI), Department of Nuclear Planetology, Moscow, Russian Federation (nikiforov@np.cosmos.ru)

     Remote neutron sensing onboard martian rovers is an advanced technique in planetary science. Such measurements provide investigations on hydrogen abundances and elements with high thermal neutron absorption cross sections down to ~60 cm of subsurface [1]. The presence of hydrogen (mostly water/ice) in subsurface significantly influences the neutron leakage spectrum due moderation and thermalization through collisions with hydrogen nuclei. As a result, the variations of neutron flux detected onboard in different energy bands correlate with subsurface hydrogen/water abundance.

     Dynamic Albedo of Neutrons (DAN) is the first neutron spectrometer installed on the NASA’s rover [2]. More than 7 years, NASA rover is successfully traversing across Mars surface exploring Gale crater. Adron-RM is the next generation neutron spectrometer, which is a part of the ExoMars 2022 rover payload [3].

     This work will present scientific potential of remote neutron technique to distinguish local features in martian subsurface, based on DAN findings. In addition, we will provide Adron-RM measurement schematic and scientific potential on investigations in the area of the ExoMars 2022 landing site.

     References

[1] Nikiforov, S. Y., et al., (2020). Assessment of water content in martian subsurface along the traverse of the Curiosity rover based on passive measurements of the DAN instrument. Icarus, 346, 113818. https://doi.org/10.1016/j.icarus.2020.113818

[2] Mitrofanov, I. G., et al., (2012). Dynamic Albedo of Neutrons (DAN) experiment onboard NASA’s Mars Science Laboratory. Space Science Reviews, 170(1–4), 559–582. https://doi.org/10.1007/s11214-012-9924-y

[3] Mitrofanov, I. G., et al., (2017). The ADRON-RM Instrument Onboard the ExoMars Rover. Astrobiology, 17(6–7), 585–594. https://doi.org/10.1089/ast.2016.1566

How to cite: Nikiforov, S., Mitrofanov, I., Litvak, M., Djachkova, M., Golovin, D., Lisov, D., Malakhov, A., Mokrousov, M., Sanin, A., and Tretyakov, V.: Experience of DAN investigation of subsurface water on Mars onboard the rover Curiosity for the future ADRON-RM experiment on the ExoMars rover, Europlanet Science Congress 2020, online, 21 September–9 Oct 2020, EPSC2020-1053, https://doi.org/10.5194/epsc2020-1053, 2020