Dust plumes lofted by a lunar lander threaten operations and assets. To inform prediction and protection, we are developing a lander-mounted laser-based instrument to obtain empirical particle-size distributions in ejecta plumes. The particle size distribution is determined from laser propagation decay at multiple wavelengths. We present laboratory experiments on static particle suspensions of independently known particle-size distributions in liquid, and of dropped particle showers in an evacuable chamber, to confirm theoretical expectations for laser propagation decay constants. We predict the laser-propagation decay-constant spectrum for plumes of lunar simulant generated by tethered rocket tests. We describe progress on a prototype system for tethered rocket tests and some of the calibration issues.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Laser Particle Sizer for Lunar Lander Plumes


    Beteiligte:

    Kongress:

    19th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments ; 2024 ; Miami, Florida


    Erschienen in:

    Erscheinungsdatum :

    10.10.2024




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Particle Sizer

    NTRS | 1987



    The Behavior of High-Velocity Dust Generated by Lander Plumes in the Lunar Environment

    M M Wittal / J G Mantovani / J R Phillips III et al. | NTRS


    Lunar Lander

    Scholten, Jan | DataCite | 2024


    Lunar Lander Strategies

    Kennedy, Kriss J. | ASCE | 2008