Upgrade improves low-level RF system for radio-frequency quadrupole test stand in J-PARC, suggesting enhanced performance for accelerator components.
The Radio-Frequency Quadrupole Test Stand (RFQ-TS) was prepared for conditioning the spare RFQ in the Japan Proton Accelerator Research Complex (J-PARC) linac. Additionally, the RFQ-TS is used for the development of accelerator components and the acquisition of beam parameters. The digital feedback system of the Low-Level RF in the RFQ-TS previously used the discontinued cPCI system, which had been in use for 20 years since its development. In order to continue improvements of the RFQ-TS and to allow for future development, the system has been upgraded to use a micro telecommunications computing architecture.4 - based system, which can be developed further. This paper reports the details of the upgrade, along with the feedback and feedforward adjustments.
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Nakano et al. (2025) studied this question.
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