Proton Radiography Application to Medical Imaging

摘要

In order to demonstrate the potential advantages of proton radiography for medical imaging, a 205 MeV proton radiography beam was developed using the Argonne National Laboratory Booster I synchrotron. Data were taken using a narrow scanning beam and an electronic detector system. The proton radiographs presented here demonstrate a significant dose reduction and improved mass resolution over conventional x-ray techniques. The radiographs also show significant differences in the proton stopping power of biological tissues and, therefore, considerable potential in soft tissue imaging. Also presented is the motivation for the interest in developing a proton tomographic scan system. (ERA citation 04:055588)