  Thermoluminescence (TL) research provides a powerful tool for characterizing
radiation-induced processes in extraterrestrial matter. One of the challenges
in studying the spectral features of the natural TL of stony meteorites is its
weak intensity. The present work showcases the capabilities of a high-sensitive
original module for measuring the spectrally resolved TL characteristics of the
Chelyabinsk and Tsarev chondrites. We have analyzed the emission spectra and
glow curves of natural and induced TL over the 300 - 650 nm and RT - 873 K
ranges. A quasi-continuous distribution of traps active within the 350 - 650 K
range was found in the silicate substructure of both meteorites under study.
Based on the general order kinetic formalism and using the natural TL data, we
also estimated the activation energies of 0.86 and 1.08 eV for the Chelyabinsk
and Tsarev chondrites, respectively.
