Design of beam phase measurement electronics system based on sub-sampling technology
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摘要: 采用欠采样技术为中国散裂中子源（CSNS）直线加速器研制了全数字化束流相位测量电子学系统。介绍了该系统的测量原理、整体设计情况，并进行了实验测试。测试采用324 MHz,100 mVpp的正弦信号,测试结果显示相位分辨率优于0.1,通道间相位不一致性可控制在0.2以内,满足设计指标要求。Abstract: Sub-sampling technology has been adopted to realize fully-digitalized beam phase measurement electronics system for linac in China Spallation Neutron Source(CSNS). This paper introduces measurement principle and operation procedure of the system and describes analog signal processing, sampling and frequency module. It also presents the experimental results of measuring 324 MHz/100 mVpp sine wave, which achieves phase resolution less than 0.1 and non-uniformity between channels limited in 0.2, satisfying the requirements of system.
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Key words:
- beam phase measurement /
- sub-sampling /
- ADC /
- China Spallation Neutron Source(CSNS)
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