التفاصيل البيبلوغرافية
| العنوان: |
Demonstration of transport of a patterned electron beam produced by diamond pyramid cathode in an rf gun. |
| المؤلفون: |
Nichols, K. E., Andrews, H. L., Kim, D., Simakov, E. I., Conde, M., Doran, D. S., Ha, G., Liu, W., Power, J. F., Shao, J., Whiteford, C., Wisniewski, E. E., Antipov, S. P., Chen, G. |
| المصدر: |
Applied Physics Letters; 1/13/2020, Vol. 116 Issue 2, p1-5, 5p, 2 Color Photographs, 1 Diagram, 4 Graphs |
| مصطلحات موضوعية: |
ELECTRON transport, CATHODES, ELECTRON beams, RADIO frequency, DIAMONDS, FIREARMS |
| مستخلص: |
We have demonstrated generation and transport of a patterned electron beam from a Diamond Field-Emitter Array (DFEA) cathode in a radio frequency (rf) gun. DFEAs are arrays of micrometer-scale pyramids with nanometer-scale tips. They can be fabricated with base widths ranging from 3 μm to 25 μm and pitches as small as 5 μm. They have an inherent 1:0.7 base to height ratio. DFEAs operate as field-emitter cathodes and potentially produce intrinsically shaped electron beams, which are of interest for a number of accelerator applications. We report on the results of a recent experiment in which a beam, consisting of several beamlets, was produced from a DFEA cathode in an rf gun and transported 2.54 m along a beam line. A macrobunch charge of 60 pC was measured at a cathode field gradient of 15.1 MV/m. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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