2D-Sensing Ionization Chambers

Ionization chambers with pixel electrode patterns provide true two-dimensional beam profiles. Strip electrode chambers assume that the beam can be characterized by two orthogonal one-dimensional projections. However some beam behaviors such as inclined elliptical beams are not well-represented by the projections - a true two-dimensional imager provides more information.

Pyramid has introduced 2D imaging chambers for particle therapy isocenter diagnostic purposes (the PX-2) and for in-situ beam profile monitoring (the PX-3). The PX-2 is available in a telescope configuration that measures the position, shape, trajectory and divergence of a beam. The PX-3 provides one of the lowest possible water-equivalent thickness beam position monitors for the particle therapy market. Go to the beamline diagnostics section of the Products page for more details.