Abstract
The paper presents a design with an optimized tiny scattering element for a medical device. The device contains a red laser light delivery system for esophagus cancer treatment. The scattering element optimization calculations, using Mie theory, provide scattering and absorption efficiency factors for small particles. The paper also investigates the possibility of using dust with randomly deformed shape or composite particles instead of spheres. We extend the Mie theory to model these types of particles and to estimate influence of particle shapes on scattering and absorption efficiency factors and device performance.The paper presents a design with an optimized tiny scattering element for a medical device. The device contains a red laser light delivery system for esophagus cancer treatment. The scattering element optimization calculations, using Mie theory, provide scattering and absorption efficiency factors for small particles. The paper also investigates the possibility of using dust with randomly deformed shape or composite particles instead of spheres. We extend the Mie theory to model these types of particles and to estimate influence of particle shapes on scattering and absorption efficiency factors and device performance.
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