Speaker
Description
We report on the activities of the University of California-funded Advanced Accelerator Diagnostics (AAD) Collaboration to develop ultra-fast diamond-sensor-based detection systems. Results are presented on the performance properties of monocrystalline diamond, including charge collection efficiency and time, and radiation tolerance. We follow with presentations of diagnostic-system prototypes completed or under development by the collaboration that pushes the state-of-the-art in terms of radiation tolerance, position sensitivity, and detector system bandwidth. These include a pass-through quadrant monitor with a resolution of 1% of beam width aimed at cavity-based FELs such as CBXFEL with pulse rates of 50 MHz. A different prototype is being developed for a wire-free monitor for real-time profiling of intense proton beams, geared towards improving the efficiency and yield of isotope-production facilities. Progress is also being made on next-generation XFEL detectors with multi-bunch operation requiring 5-10 GHz measurement rates. Above 1-2 GHz, detection systems enter the “RF region” for which challenges arise in all four areas of charge collection speed, signal path integrity, high-bandwidth signal transport, and amplification and digitization. Progress on all these fronts, and remaining challenges, will be presented.
Funding Agency
Funded by the University of California Office of the President and the US Department of Energy.
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