Experimental study on channeling condition of natural olivine

Abstract

The olivine is a main rock-forming mineral of the earth and the meteorite. In the present study, forsterite from Pakistan was used as sample.  For the purpose of an precise determination of the site occupancy of natural olivine with the ALCHEMI experiment,  an experimental study was performed to find a condition that the electron channeling has been produced most effectively. The incidence direction of electron beam was continually changed and the EDS spectrum was acquired. One of the characteristic results is that the intensity of Mn and Ni showed a irregular behavior in the EDS profile.