Collecteurs Faraday

A Faraday cup is a conductive collector that physically captures a charged particle beam; the resulting current is directly proportional to the beam's intensity, giving a direct, absolute measurement rather than an inferred one.

It means the measurement stays accurate across a range of beam energies rather than needing separate calibration at each energy level, which is important for facilities that operate across varying beam conditions.

Yes. They're designed to directly measure proton beam intensity up to FLASH dose-rate levels and beyond.

Because they measure beam current through direct charge collection on a conductor rather than through gas ionization, their reading isn't influenced by the density changes that affect gas-filled detectors like ion chambers under varying temperature and pressure.