Abstract :
The ILC linac group at SLAC is actively pursuing a broad range of R&D to improve the reliability and reduce the cost of the L-band (1.3 GHz) rf system. Current activities include the development of a Marx-style modulator and a 10 MW sheet-beam klystron, construction of an rf distribution system with adjustable power tap- offs and custom hybrids, tests of cavity coupler components to understand rf processing limitations, simulations of multipacting in the couplers and optimization of the cavity fill parameters for operation with a large spread of sustainable cavity gradients. Also, a prototype positron capture cavity is being developed for the ILC injectors. This paper surveys the results from the past year and notes related L-band R&D at other labs, in particular, that at DESY for the XFEL project.
Keywords :
accelerator RF systems; accelerator cavities; linear accelerators; research and development; ILC RF system; L-band rf system; Marx-style modulator; R&D; cavity coupler components; prototype positron capture cavity; rf distribution system; Costs; Klystrons; L-band; Linear particle accelerator; Modular construction; Power system reliability; Prototypes; Radio frequency; Research and development; System testing;
