A peak-shaped LM-OSL signal is obtained by linearly increasing the stimulation power during measurement. Two different quartz samples, one originally zeroed by heating and the other originally bleached by exposure to light, were used. All LM-OSL signa...
A peak-shaped LM-OSL signal is obtained by linearly increasing the stimulation power during measurement. Two different quartz samples, one originally zeroed by heating and the other originally bleached by exposure to light, were used. All LM-OSL signals were deconvoluted to 4 components, fast, medium, slow 1, and slow 2, and the photoionization cross-sections were located between 10$^{-17}$cm$^{2}$ and 10$^{-21}$cm$^{2}$. From the thermal dependence of the photoionization cross-section, the thermal assistance energy of fast component revealed a relatively weak electron-phonon coupling, and except for the slow 2 component, assistance energies of the other comparents for the thermal optically bleached quartz were larger than those for thermally zeroed quartz. In addition, thermal quenching was observed from a decrease in each electron population with increasing measurement temperature. We expect the LM-OSL technique to be further applied to investigations of the physical characteristics of quartz and feldspars for luminescence dating.