[en] This work investigated the feasibility of using materials from personal electronic devices for optically stimulated luminescence (OSL) based retrospective dosimetry following a radiological accident or attack. The alumina porcelain substrates of surface-mount resistors were identified as the most sensitive and ubiquitous components for OSL analysis. Studies were conducted on resistor samples and cellular phone components in order to characterise the dose response and signal stability of the substrates. Anomalous signal fading was observed, and procedures were developed to correct for this. Dose reconstruction procedures were validated through trials in which cellular phones were affixed to an anthropomorphic phantom, irradiated with a gamma source, and analysed following delays of 4 to 21 days. Doses from 0.1-0.6 Gy were successfully reconstructed using the single aliquot regenerative-dose (SAR) protocol, incorporating a fading correction. It was concluded that resistors from cellular phones and other portable electronic devices should be considered for use as retrospective dosimeters in the case of unforeseen radiation exposures. (author)