Measurement of the temporal and spatial temperature distribution on the surface of PVCP tissue phantom illuminated by laser.

Application of laboratory set-up for characterisation of thermal properties of optical tissue phantoms during laser irradiation is presented. The produced system utilizes thermographic camera VIGOcam v50 and dermatological laser system with a 975 nm diode laser module. The set-up was used to perform measurements of the temporal and spatial temperature distribution on the phantoms surface. The VIGOcam v50 thermal imaging camera allows for measurement of temperature changes with a resolution of 70 mK. The study has demonstrated that this laboratory set-up can be successfully used for visualization of the spatial temperature distribution in the phantom and to evaluation of the phantom's response to laser irradiation. Spatial temperature distribution on the surface of tissue phantom is similar to Gaussian distribution, indicating a good fit of the theoretical model to the measured experimental data.