Speaker
Description
Diagnostics and control of beam halo along the beamline are of utmost importance for a high-intensity proton accelerator. To guide halo collimation and mitigate beam loss, halo diagnostics at different betatron phases have been proposed for the CSNS hydrogen linac accelerator. Instead of a scintillating detector, a wire scanner with a neutron-sensitive BF3 detector has been suggested, achieving a dynamic range of 1e+5. To further enhance the bottom limit of halo diagnotics, a novel wire scanner equipped with a fluorescence strip has been proposed and demonstrated at CSNS linac. This design has a high light yield and blooming-free design, enabling a dynamic range of over 1e+7 using a CMOS camera during the initial commissioning phase. This paper reports on the optimizations of the dynamic ranges of the aforementioned two schemes and the sequence observations of beam-halo dynamics.
| Region represented | Asia |
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| Paper preparation format | LaTeX |
