Video Experimental Relacionado

Updated: Feb 17, 2026

Scattering And Absorption of Light in Planetary Regoliths

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Variaciones isotópicas de materiales planetarios solares causadas por reacciones de captura de neutrones en el

Hiroshi Hidaka¹

¹Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8601, Japan.

Radiation protection dosimetry

|February 16, 2026

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.

Palabras clave:

radiactividad astrofísica nuclear cosmoquímica ciencia planetaria

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