Digital Low-Level RF control system for Advanced Light Source Storage Ring

Autor:	Du, Qiang, Doolittle, Lawrence, Betz, Michael, Flugstad, Benjamin, Vinco, Massimiliano, Baptiste, Kenneth
Rok vydání:	2019
Předmět:	Physics - Accelerator Physics
Druh dokumentu:	Working Paper
Popis:	We have commissioned the digital Low Level RF (LLRF) system for storage ring RF at Advanced Light Source at Lawrence Berkeley National Lab (LBNL). The system is composed of 42 synchronous sampling channels for feedback control, diagnostics, and interlocks. The closed loop RF amplitude and phase stability is measured as < 0.1% and < 0.1 degree respectively, and the real-time machine protection interlock latency is measured < 2.5 microsecond. We have also developed PLC-FPGA-EPICS interfaces to support system configurations between hybrid operation modes using two klystrons driving two RF cavities at 500MHz resonance frequency. The deployed LLRF system has been operating since March 2017. Comment: Talk presented at LLRF Workshop 2019 (LLRF2019, arXiv:1909.06754)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1910.07175 Zobrazit plný text záznamu View this record from Arxiv