Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.u21c..08k&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #U21C-08
Physics
[2114] Interplanetary Physics / Energetic Particles, [6250] Planetary Sciences: Solar System Objects / Moon, [7938] Space Weather / Impacts On Humans, [7984] Space Weather / Space Radiation Environment
Scientific paper
The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) is an ionizing radiation instrument on the Lunar Reconnaissance Orbiter spacecraft. The exploration-enabling objectives of CRaTER are to characterize the lunar radiation environment and to study how dose rates evolve as a function of shielding and depth in the human body. LRO is a three-axis stabilized lunar pointing spacecraft, and the two ends of the CRaTER telescope are continuously pointed with unobstructed fields of view of deep space and the lunar surface. We present observations with CRaTER from cruise to the moon through the first six months of operations with a focus on identifying how the moon affects the flux of galactic cosmic rays that reach the spacecraft. We examine event rates as a function of altitude above the moon and compare our results with a simple geometric model.
Bernard Blake J.
Case Anthony W.
Golightly Michael J.
Kasper Justin Christophe
Looper Mark Dixon
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