Multichannel data acquisition system using multirate signal processing

The Hefei Advanced Light Facility (HALF) is a fourth-generation vacuum ultraviolet and x-ray diffraction limit synchrotron radiation (DLSR) light source now under preliminary research. To achieve ultralow beam emittance and small beam size, the orbit of the beam in the DLSR storage ring should meet the stability requirement at submicrometer scale. The beam position monitor (BPM) electronics measures the orbit and is hence an essential part of the beam orbit control system. In this article, we design a BPM electronics based on the MicroTCA.4 (Micro Telecom Computing Architecture) standards platform, which consists of a MicroTCA.4 module (including a chassis, a power supply, and a digital board), a customized RF front end module, and a frequency synthesizer. In-phase and quadrature sampling and digital signal processing algorithms are implemented to obtain turn-by-turn data, fast acquisition data at a 10 kHz rate, and slow acquisition data at a 10 Hz rate. To evaluate the performance and function of BPM electronics, we conducted offline tests in the laboratory and beam tests based on the storage ring of Hefei Light Source II (HLS II), a light source similar to the HALF as an alternative. Test results indicate that the performance of MicroTCA.4-based BPM electronics can meet the requirements of the HALF storage ring.

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Micro telecom computing architecture.4-based beam position monitor electronics design for storage ring of Hefei advanced light facility

Liang

Tang

Xie

et al. 2021

Review of Scientific Instruments

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Multichannel data acquisition system using multirate signal processing

Cited by 1 publication

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Micro telecom computing architecture.4-based beam position monitor electronics design for storage ring of Hefei advanced light facility

Micro telecom computing architecture.4-based beam position monitor electronics design for storage ring of Hefei advanced light facility

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