Abstract by Hannah Coons

Personal Infomation

Presenter's Name

Hannah Coons

Degree Level


Abstract Infomation


Physics and Astronomy

Faculty Advisor

Robert Davis


Monte Carlo Simulation of Light in the Wrist


The optical properties of blood, distinct from those of skin or interstitial tissue, allow for analysis of blood constitutents non-invasively using light in the near-infrared portion of the electromagnetic spectrum. The purpose of this project is to computationally model this phenomenon. This model, a Monte Carlo simulation in C++, uses established probability functions to determine how much light passes from an LED on the skin of the inner wrist, through the ulnar artery, to a detector placed on the skin a short distance away. By comparing the signal predicted by the Monte Carlo model with experimental data, we are able to determine not only the intensity and directionality of the detected light, but also predict where that light has traveled.