Related Experiment Video
Updated: Feb 17, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Isotopic variations of solar planetary materials caused by neutron capture reactions in space
1Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8601, Japan.
Abstract:
149Sm-150Sm and 157Gd-158Gd isotopic shifts of solar planetary materials caused by neutron capture reactions have been utilized to characterize the cosmic-ray exposure (CRE) conditions of the individual materials in space. This paper reviews the results of Sm and Gd isotopic shifts for four kinds of planetary materials: enstatite chondrites (aubrites), iron and iron meteorites, lunar soils, and lunar meteorites, and their application with a view to understanding the relationship between the CRE histories and the evolution processes for individual planetary materials as addressed in my previous studies.
Related Concept Videos
Isotopes
An element's atomic mass, or weight,...
Nuclear Transmutation
Nuclear Fission
Mass Spectrometry: Isotope Effect
Nuclear Stability
To hold positively charged protons together...
Isotopes and Radioisotopes
An isotope containing...

