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| MOPIK018 |
Micro-Scale Electron Beam Generation Using Pyroelectric Crystals |
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- R.B. Yoder, Z. Kabilova
Goucher College, Baltimore, Maryland, USA
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Novel laser-powered acceleration structures currently under development, which have dimensions comparable to optical wavelengths and can be constructed on a silicon wafer, require injection of a sub-micron-scale electron bunch to achieve high-quality, monoenergetic output beams. A potential injection mechanism for such micro-scale beams relies on field emission from a nanotip array, followed by acceleration to near-relativistic energies. We demonstrate field emission of electrons from a lithium niobate crystal during heating and cooling, and describe the production of electrons within a hollow channel along the axis of a lithium niobate crystal. Measurements of emitted beam properties are compared with direct measurements of crystal fields under comparable conditions and modeled mathematically.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-MOPIK018
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