Behavior of the electron trapping probability change in IRSL dating of K-feldspar: A dose recovery study

The electron trapping probability can be reset by solar bleaching. The modified SAR protocol with solar bleaching behind each cycle or the MAR protocol is recommended if the low-temperature IRSL signals are applied to obtain ages. Solar simulator with the xenon arc lamp is more efficient in reducing the electron trapping probability compared to the sunlight. Bleaching duration with the solar simulator should be chosen with caution.