NSLS-II Friday Lunchtime Seminar

"In Situ & ACERT - The LANL-BNL Cathode Collaboration"

Presented by John Smedley, Los Alamos National Laboratory

Friday, November 22, 2019, 12:00 pm — NSLS-II Bldg. 743 Room 156

The Applied Cathode Enhancement and Robustness Technologies (ACERT) capability at LANL and the in-situ x-ray analysis growth chamber at BNL are two of the premier tools available for development of photocathode technologies. We are following a model of innovation and collaboration to move cathodes from lab to application, guided by theory, modeling, and experimental validation. This presentation will focus on two recent technology advances – cathodes with "atomic armor", single monolayers of coatings to the cathode surface and/or substrate to improve lifetime and enable operating in inferior vacuum, and highly crystalline CsTe, providing evidence that better crystallinity can improve QE while supporting an ultra-smooth surface. We hope to engender both technical discussion in these areas and open the door to future collaborations. LA-UR-19-28272

Hosted by: Ignace Jarrige

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