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Persistent URL http://purl.org/net/epubs/work/32235897
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Record Id 32235897
Title Lattice and Component Design for the Front End Test Stand MEBT at RAL
Abstract The Front End Test Stand (FETS) linear accelerator at Rutherford Appleton laboratory (RAL) will accelerate a 60 mA, 2 ms, 50 pps H− beam to 3MeV. The aim of FETS is to demonstrate perfect chopping using a novel 2 stage (fast / slow) chopper scheme. The beam chopper and associated beam dumps are located in the MEBT. Achieving a low emittance-growth under the influence of strong, non-linear space-charge forces in a lattice which has to accommodate the long chopping elements is challenging. The baseline FETS MEBT design is 4.3 m long and contains 7 quadrupoles, 3 rebunching cavities, a fast and slow chopper deflector and two beam dumps. In particle dynamics simulations using a distribution from an RFQ simulation as input, beam loss for the un-chopped beam is below 1% while the chopping efficiency is >99 % in both choppers. The final MEBT lattice chosen for FETS will be presented together with particle tracking results and design details of the beam line components.
Organisation ISIS , ISIS-ACCEL , STFC
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Language English (EN)
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Paper In Conference Proceedings In 5th International Particle Accelerator Conference (IPAC14), Dresden, Germany, 15-20 Jun 2014, (2014): 1205-1207. http://accelconf.…/papers/tupro072.pdf 2014