Join a detailed webinar exploring radiation's impact on cosmic materials, where NASA Postdoctoral Fellow Dr. Micah Schaible delves into how ionizing radiation transforms dust, asteroids, and moons in space. Learn about the complex interactions between different radiation types and various space materials, from interstellar dust to planetary surfaces. Discover how laboratory methods and computational studies help explain observed phenomena in space and predict environmental conditions. Explore the implications for early Solar System formation and potential asteroid resource utilization. Gain insights into radiation chemistry, space weathering, and specific cases like Saturn's moon Mimas and the mysterious PacMan anomalies. Examine cutting-edge research on topics ranging from regolith grain sintering to the formation of pre-biotic molecules, including specialized studies on chiral-specific reactions and amino acid damage. Understand how these findings contribute to our knowledge of solar system evolution and support future space exploration efforts.
Radiation Processing of Dust, Asteroids and Moons - What Does It Do and What Can It Tell Us?
AVS Knights via YouTube
Overview
Syllabus
Intro
Organizers
Webinar Format
Today's Speaker
Stars interact with planetary materials
Definitions: ·lonizing Radiation: lons, electrons, and photons containing energy above the target ionization threshold
Radiation Chemistry & Space Weathering 101
Saturnian Magnetosphere Evironm
Electron environment at Mimas
The PacMan Anomalies
MeV Electron Energy Losses in H2O
Sintering of regolith grains
Radiation induced diffusion
Molecular Dynamics Simulation of Elect Excitation in Water Ice
Estimates of spherical grain sintering rat
ROUGH Approximations of Resurfacing
Sintering timescales (Myr) Comparisons with resurfacing rates can constrain surface properties
Determining the Origins of Phobos and Demos
Solar wind sputtering of small bod.
Sputtering and secondary ion detection
Monte Carlo Simulations
Sputtering Experiment
SIMS: Experimental Yields Secondary ion yields for lunar soil exposed to keV energy ions
Relative Secondary lon Yield
Simulated lon Trajectories and Densit
Small body classification
PRISM Mission so to Phobos and Deimos
Formation of pre-biotic molecules in spa
Chiral-specific reactions caused by sp polarized electrons
Spin-polarized LEE Damage of Chiral Molec
Argonne National Laboratory
Amino Acid Damage: Chirality and Magnetization
XPS Characterization of Deposited Film
Cross-section statistical testing
Taught by
AVS Knights
