Speaker
Description
The PEPITES profiler was originally designed for continuous operation on medium-energy (O(100 MeV)) charged particle accelerators. Its ultra-thin structure relies on secondary electron emission (SEE) to generate signals. It has successfully measured the positions and profiles of various hadron beams across a wide dynamic range.
This innovative device consists of 50 nm gold strips deposited on a radiation-resistant polyimide substrate. Secondary electrons emitted from the strips gold surface form the signal. Thanks to the high linearity of the SEE, the profiler enables accurate characterization of continuous beams as well as pulsed beams across a wide dynamic range, without the saturation effects commonly observed in other detectors. Additionally, the design minimizes beam perturbation while ensuring excellent durability, even under demanding operating conditions.
A first PEPITES prototype was installed and has been routinely used at ARRONAX to measure beam profiles of 70 MeV proton beams in both continuous and pulsed delivery modes. Furthermore, preliminary tests conducted at the CNAO** hadrontherapy center with therapeutic-energy protons and carbon ions have produced promising results, confirming the device’s compatibility with a broad range of beam types, energies and intensities.
These results position PEPITES as a promising and transformative solution for beam monitoring in both current and next-generation hadron beam facilities.
Footnotes
doi:10.18429/JACoW-IBIC2022-MOP21
GIP ARRONAX (Saint Herblain, France)
**Centro Nazionale di Adroterapia Oncologica (Pavia, Italy)
