An On-line Monitor for Fluence Distributions and Imaging of Scanning Ion Beams
Abstract
Clinical applications of hadron beams have generated a wide development of radiobiology experiments, especially at GANIL (Grand Accélérateur National d'Ions Lourds), an ion accelerator in Caen. Biological samples are irradiated with ions in order to observe the induced biological effects. As these observations have to be related to the fluence distribution, an on-line beam monitor has been developed in order to measure and image fluence maps of each biological sample irradiation with a 1% uncertainty. This beam monitor has been tested with different types of ions at several energies and for intensities from 10$^{4}$ to 10$^{9}$ ions per second.