Steinbuch Centre for Computing (SCC)

Insights into our body through computer tomography

Everybody knows it: An acquaintance has had an accident and you go to the hospital for an X-ray or computer tomography to check whether bones or organs have been injured. The patient is irradiated with X-rays and the doctors receive an image of the cross-section of the examined body part. Different grey tones represent different materials, which attenuate the radiation to different degrees through absorption. But how does this actually work? How is it possible to obtain images of the inner structure of the radiographed body parts with the help of X-rays? It is precisely this question that high school students get to the bottom of with the help of mathematics close to school. They set up mathematical models and use computers to investigate for themselves how the necessary data is determined.

Duration: from 5 hours (incl. lunch break)
Contents: Inverse problems, parameter representation of straight lines and planes, matrices
Previous knowledge:  Straight lines in R2, intersection point calculation
Participants: Upper secondary mathematics courses
Created by: Kirsten Wohak
Registration: Appointments can be made individually by e-mail.