Author:
Namioka Yoji,Kurosaki Taisei,Kikuchi Takashi,Dung Do Thi Mai,Nakayama Tadachika,Suematsu Hisayuki,Thorogood Gordon J.
Abstract
Abstract
In order to reproduce the irradiation environment of Europa, NaCl-0-2mol%KCl crystals were grown and irradiated with pulsed intense relativistic electron beams at RT and 77 K in the optical absorbance spectra. The peak wavelength of the F-center was shortened by decreasing the measurement temperature and the KCl content. This phenomenon can be explained by the changes of the lattice constant and utilized to determine temperature and KCl content in the sea of Europa.
Subject
General Physics and Astronomy,Physics and Astronomy (miscellaneous),General Engineering