Speaker
Description
The High Energy Photon Source (HEPS) is a 6 GeV electron storage ring light source currently under beam commissioning. We have designed a beam diagnostics beamline that integrates both pinhole imaging and KB mirror imaging systems, enabling the measurement of beam profiles and the calculation of beam sizes and emittance. Both systems are designed to measure the same source point, with the capability to switch between them for beam imaging. Currently, the measured emittance values are 91.8 pm in the horizontal and 4.9 pm in the vertical. This paper provides a detailed account of the measurement results from both imaging systems. In the pinhole imaging system, we conducted a pinhole size calibration experiment by inserting aluminum attenuators of varying thicknesses and comparing the observed size changes with theoretical point spread function variations to determine the pinhole aperture. For the KB imaging system, detailed commissioning data will be presented.
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