Concept study on using fiber-optic sensors with nanocrystalline diamond sheet for tissue monitoring in radiotherapy

Ionizing radiation plays a crucial role in medical diagnostics and therapy, particularly in cancer treatment. This paper presents a novel concept for real-time tissue monitoring during radiotherapy using fiber-optic sensors integrated with a diamond nanosheet protection. The system could monitor tissue refractive index changes, enabling differentiation between healthy and cancerous tissues. Optical phantoms are used to simulate biological tissues, facilitating controlled experiments. The diamond coating ensures sensor biocompatibility, stability, and durability in medical environments. This technology promises enhanced treatment accuracy by providing real-time feedback on tissue changes during radiotherapy.