Speaker
Description
Traveling-wave accelerating structures have significant application value in scientific research, industry, and medical fields. X-band accelerators have attracted considerable attention due to their compact structure and high accelerating gradient. The accuracy of cavity resonant frequencies and inter-cavity phase shifts directly affects beam quality, making the tuning of accelerating structures essential. This work focuses on the automatic tuning requirements of X-band traveling-wave accelerating structures and develops an automatic tuning system composed of a motor controller, an environmental compensation module, a vector network analyzer, and upper-level control software. The system calibrates the motor trajectory and cavity positions to ensure that the probe reaches the designated locations accurately; it corrects the cavity resonant frequency based on ambient temperature and humidity; and it acquires cavity resonance and phase information. LabVIEW is used to achieve coordinated control of all components and to perform data processing. The proposed system enhances tuning speed and stability while effectively reducing human-induced errors.
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