Development and Testing of a Demountable Sheet Electron Beam Analyzer with Fluorescent Screen

75527S The sheet-beam klystron holds great promise for providing high RF power for modern linear colliders. However, sheet beam generation is not readily amenable to computer simulation; therefore, experimental validation of the design is sorely needed. This project will develop a demountable sheet beam analyzer with a fluorescent screen for direct observation of the electron beam cross section. In Phase I, an analyzer with a fluorescent screen was designed, fabricated, and tested with a new kind of sheet-beam gun, which morphs a round beam into an elliptical beam. Two versions of the analyzer were fabricated and succussfully tested: one version was used to test the fluorescent screen, the second to provide direct viewing of the elliptical beam cross section. In Phase II, two 500-kV beam analyzers will be designed, fabricated, and tested at high voltage at the Standford Linear Accelerator Center. Commercial Applications and Other Benefits as described by the awardee: The demountable beam analyzer should provide significant value for the design of future sheet-beam klystrons. The technology also offers the potential for providing RF power from light-weight, affordable generators for use with portable X-ray scanners of thousands of shipping containers.