The Large-Dynamical Range Diagnostics (LDRD) will be used to measure the transverse distribution of the beam with over a large dynamical range down to 10**-5 relative to the beam distribution's core. Such a capability will enable exploration of halo formation for various conditions and especially in presence of a magnetic field on the cathode (as required for the generation of magnetized beams). Understanding halo formation will be critical to the generation of high-current beams with minimal losses during acceleration and transport to high energies.

The LDLR is depicted below
close up image