Imaging of heavy-ion beams on kapton film

摘要

Kapton film is used to image K~(+) ion beams in the 0.4 to 2 MeV energy range. Dose response is shown to be linear and to follow a simple model for a range of exposures. The measured profiles agree with profiles obtained with a slit scanner. Kapton has excellent spatial resolution, dynamic range, and discrimination against stray low energy and low mass particles.