Speaker
Description
Accurate evaluation of the beam energy and energy spread plays a crucial role in the commissioning and operation of electron accelerators. The energy analysis (EA) system, consisting of a dipole with associated upstream and downstream drift sections, is widely applied in accelerator facilities due to its structural simplicity, large measurement range, and high resolution. However, assembly errors, leading to offsets or tilt angles between the input beam and the designed system axis, are inevitably introduced during engineering implementation. Such misalignment necessarily affect the accuracy of the measurement results of the EA system, and the impact may be even more significant for low-energy e-beams with the energy of a few MeV. In this context, based on the low-energy injector experimental platform currently under construction, the misalignment induced errors in the dipole-based EA systems are analyzed in depth, and potential compensation methods are explored. The study aims to provide both theoretical support and practical guidance for optimizing system alignment and improving measurement precision.
Funding Agency
Work supported by the National Natural Science Foundation of China (No.12575164 and No.12341501) and the National Key R & D Program of China (No.2024YFA1612200)
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