The study revealed the most promising candidates for phantoms mimicking different biological tissues in the terahertz frequency range. Closest to biological tissues in terms of the refractive index appeared to be gelatin-based gels; in terms of the absorption coefficient they were agar-based gels. Gelatin is more stable in time, but requires special storage conditions to limit water evaporation. The dense structure of the agar-based phantom allows its use without mold and risk of damage. However, agar is a nutrient medium for bacteria and its parameters degrade even when the phantom form and water content are retained. Use of liquid suspensions of lecithin and milk powder are found to be extremely limited.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 30 Aug 2016|
|MoE publication type||A4 Article in a conference publication|
|Event||9th International Conference of Young Scientists and Specialists, Optics 2015 - St Petersburg, Russian Federation|
Duration: 12 Oct 2015 → 16 Oct 2015