Space radiation risk limits and Earth-Moon-Mars environmental models

Zircon from the Moon , Earth and Mars

\Hydrous-Carbonaceous" Micrometeorites on the Early Earth, Moon and Mars

Unmelted large micrometeorites with sizes of about 50-500 m were recovered from the Antarctica and Greenland ice sheets. Their capture in such \space collectors" made of very clean ices, where they got both shielded from most terrestrial contaminants and preserved by deep freeze, allowed for the rst time the investigation of their carbon chemistry. Mass ux measurements in both ice sheets indica...

Introduction to special section on the Earth-Moon-Mars Radiation Environment Module

[1] The United States is preparing to return humans to the Moon and is setting the stage for exploration to Mars and beyond. However, it is unclear if long missions outside of low-Earth orbit (LEO) can be accomplished with acceptable risk. The central objective of the NASA Living With a Star Earth-Moon-Mars Radiation Environment Module (EMMREM) is to develop and validate a numerical module for ...

Radiation Database for Earth and Mars Entry

This lecture presents the general guidelines we have followed to build up an exhaustive and accurate spectroscopic database for radiative transfer in air and CO2-N2 plasma applications, including atmospheric entries. This High Temperature Gas Radiation (HTGR) database includes bound-bound atomic, diatomic and polyatomic (in particular CO2) transitions, bound-free transitions resulting from vari...

Radiation Environment in Earth-moon Space: Results from Radom Experiment Onboard Chandrayaan-1

The Radiation Monitor (RADOM) payload is a miniature dosimeter-spectrometer onboard Chandrayaan-1 mission for monitoring the local radiation environment in nearEarth space and in lunar space. RADOM measured the total absorbed dose and spectrum of the deposited energy from high energy particles in near-Earth space, en-route and in lunar orbit. RADOM was the first experiment to be switched on soo...