It is used in the STAR neurosurgery beam at the Burr Center. To achieve the highest accuracy in depth, it uses the measured water equivalent of each slab in a final step. It designs absorber sequences for single scattering systems that use given lead and plastic slabs in binary sequence of thickness. Unlike NEU, LAMINATE is a prescription translation program. Anderson and IUCF and, most recently, proposed components for the compact proton system under development at Still River Systems. It was tested at HCL and used to design the standard IBA nozzle, components for M. NEU designs single- or double-scattering systems with an upstream modulator. We have written and distributed two such programs. Beam Line Design Programs A beam line design program uses given facility resources (incident energy and throw) and clinical requirements (dose uniformity, field size, depth and modulation) and attempts to design beam line elements (modulator and second scatterer) to meet the requirements.