Experimental data from an alternate topology HVCM for the Second Target Station (STS) at SNS

The proposed Second Target Station (STS) increases the beam energy at the SNS to 1.3 GeV by adding 7 additional cryomodules (28 cavities) to the end of the existing linear accelerator. To achieve the required gradients, these cavities will be powered with up to 700 kW peak power utilizing upgraded 550 kW klystrons. To meet the additional peak power needs, an enhancement to the present High Voltage Converter Modulator (HVCM) topology is being investigated. A discussion of the benefits derived from this alternate topology will be combined with experimental data from a prototype at SNS.