Investigation of thermoluminescence properties of mobile phone screen displays as dosimeters for accidental dosimetry

• Application of acids mixture for more effective glass samples etching.
• Bleaching can be performed not only by blue but also by UV light.
• The readout with BG39 optical filter improves the TL signal intensity.
• The glass samples from touch mobile phones are worse emergency TL dosimeters.

The rapid assessment of the radiation dose after unexpected exposure is a task of accidental dosimetry. In case of a radiological accident glasses originating from mobile phone screens, placed usually near the human body, could be used as emergency thermoluminescent (TL) personal dosimeters. The time between irradiation and TL readout is crucial and therefore preparation of the mobile phone screens and their readout conditions should be optimized. The influence of the samples etching, bleaching and selection of the optical filters based on measurement of the emission spectrum of irradiated glass samples during heating for different types of mobile phones were the subjects of our investigation. Obtained results showed that glasses extracted from different brands of mobile phones have different dosimetric properties but all of them give a luminescent signal which can be used to calculate the dose.