MEDSI2025 - 13th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation

Beamline engineering progress and key equipment development at Hefei Advanced Light Facility (HALF)

TUP65

16 Sept 2025, 17:00

1h 15m

Poster Session Room (The Loop)

Poster Presentation Beamlines and Instruments Poster Session 1

Speaker

Xuewei Du (National Synchrotron Radiation Laboratory, University of Science and Technology of China)

Description

The Hefei Advanced Light Facility (HALF) is a diffraction-limited storage ring light source currently under construction. Its storage ring will operate at 2.2 GeV with a circumference of 479.86 m and a natural emittance of 86.3 pm·rad. Engineering design for the first phase, comprising 10 beamlines covering the vacuum ultraviolet (VUV) to medium-energy X-ray range, has been completed. Among these beamlines, eight utilize grating monochromators, one employs a double-crystal monochromator (DCM), and one incorporates both grating and crystal monochromators.
To address the unique advantages and challenges of diffraction-limited light sources—characterized by high coherence, high brightness, and high resolution—we have undertaken a series of key technology developments in beamline engineering. This paper presents the latest progress on beamline construction and the development of high-resolving-power plane grating monochromators (PGMs), DCMs, and mirror systems.