3 papers
physics.acc-ph2025
Obvious and non-obvious aspects of digital Self-Excited-Loops for SRF cavity control
Larry Doolittle, Shreeharshini Murthy, Matei Guran +3
In 1978, Delayen showed how Self-Excited Loops (SEL) can be used to great advantage for controlling narrow-band SRF cavities. Its key capability is establishing closed-loop amplitu…
physics.acc-ph2025
Digital Low-Level RF system for the Linac Electronics Modernization Plan at LCLS
Nashat Sawai, Jorge Diaz Cruz, Andy Benwell +4
The LCLS began operations in 2009, utilizing SLAC's normal-conducting (NC) LINAC, which features control equipment dating back to the 1960s and 1980s. The Linac Electronics Moderni…
cs.AR2023
Newad: A register map automation tool for Verilog
Vamsi K Vytla, Larry Doolittle
Large scale scientific instrumentation-and-control FPGA gateware designs have numerous run-time settable parameters. These can be used either for user-level control or by automated…