The 4th International Conference on Matter and Radiation at Extremes (ICMRE 2019)

408 / 2019-02-28 19:43:33

PRIOR-II - Proton Radiography for FAIR

Proton Radiography,Detector Systems,Imaging,High Energy,shock wave

Plenary track > High Pressure Physics and Materials Science

High energy proton radiography is a diagnostics suitable for several applications in the field of high energy physics, materials science and in the medical sector. The use of a special imaging lens combined with a custom beam line configuration upstream of the experiment produces high quality images with the unique possibility of adjusting the image contrast according to the needs of the respective experiment.
Fully exploiting the capabilities of the SIS-18 synchrotron at the GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany, such a device — PRIOR-II — has been developed according to the requirements of several experiments. The setup is based on the experience acquired during the commissioning of the PRIOR-I prototype using permanent magnet quadrupoles. It is expected to show a spatial resolution performance in the order of 10 microns with 4 GeV protons, furthermore, it is possible to capture dynamic processes using the 0.3 Hz fast extraction mode of the synchrotron. The setup is foreseen for transfer to the future FAIR facility, where the spatial resolution performance is expected to increase due to a slightly higher proton energy of 5 GeV, also the temporal resolution capabilities will be enhanced due to the 0.1 Hz fast extraction mode from the SIS-100 synchrotron.
The magnets and power supplies are currently being manufactured, a commissioning of the facility is foreseen for late 2019. This includes static commissioning as well as dynamic commissioning with a pulsed power setup. Several experiments are being prepared regarding the propagation of shock waves in matter driven by a light gas accelerator or explosives or on biomedical imaging for heavy ion tumor therapy.