Speaker
Description
The China Spallation Neutron Source (CSNS) is a major facility for neutron science in China, currently operating at an average beam power of 170 kW, with a beam energy of 1.6 GeV and a repetition rate of 25 Hz. In 2024, the CSNS Upgrade Project (CSNS-II) was launched, introducing new instrumentation for the superconducting linac, RCS, and additional beamlines. In 2025, we have upgraded the instrumentations in the RCS injection area featured with the SEM grids with d100μm CNT fibers, and a rectangular linear-cut BPM. This presentation provides an overview of the new diagnostics systems and their associated challenges, such as the non-intercept beam profile monitors at the superconducting linac and RCS, the wide-dynamic range BPM system for the RCS, and the beam-loss monitors for the fast machine protection system. It also reviews recent R&D efforts on advanced technologies, including laser-wire monitors, ionization profile monitors, fast Faraday cup/EO modulation, BPM electronics, PXIe digitizer board, and innovative materials such as carbon nanotube (CNT) wires, fluorescent wires.
