Development of an Imaging System for Patient Set-Up Monitoring During Radiotherapeutic Treatment with High Energy Photons

摘要

A prototype image detector has been designed and built for patient monitoring during radiotherapy treatment with high energy photon beams. A matrix of DC operated ionisation chambers was used to detect the transmitted radiation through a patient. The detector was developed in order to replace the current method, in which film radiography is used. Various detector configurations have been tested, and some results will be presented. Image enhancement was achieved by computer processing of the data. Theoretical possibilities of the detector system have been studied. (Atomindex citation 17:016904)