Demonstrating the importance of emissivity measurement in determining the doses of light sources on tissue mimicking materials such as Laser, IPL and LED

Abstract Currently, a wide variety of low-power light sources such as IPL, LED, and laser are frequently used in therapy applications. In this study, irradiance values were calculated for different emissivity values using the temperature measurement results made in the agar phantom using low-power light sources such as IPL, LED, and laser. Based on the irradiance data, energy densities (J/cm2) were calculated as per the different emissivity coefficients and time durations, and the results were evaluated in terms of dose quantities given in the literature. We also present both the acoustic and optical characterizations of the agar phantom in detail. In conclusion, we clearly demonstrated the importance of emissivity measurements in this study. Our findings explicitly suggest that emissivity measurement must be determined precisely to determine optical power density and/or energy density values; hence, doses can be applied based on these values.