Demonstration of transport of a patterned electron beam produced by diamond pyramid cathode in an rf gun

被引：11

作者：

Nichols, K. E. ^{[1
]}

Andrews, H. L. ^{[1
]}

Kim, D. ^{[1
]}

Simakov, E. I. ^{[1
]}

Conde, M. ^{[2
]}

Doran, D. S. ^{[2
]}

Ha, G. ^{[2
]}

Liu, W. ^{[2
]}

Power, J. F. ^{[2
]}

Shao, J. ^{[2
]}

Whiteford, C. ^{[2
]}

Wisniewski, E. E. ^{[2
]}

Antipov, S. P. ^{[3
]}

Chen, G. ^{[4
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87544 USA

[2] Argonne Natl Lab, Lemont, IL 60439 USA

[3] Euclid Beamlabs LLC, Bolingbrook, IL 60440 USA

[4] IIT, Chicago, IL 60616 USA

来源：

APPLIED PHYSICS LETTERS | 2020年 / 116卷 / 02期

关键词：

WAKE-FIELD; DESIGN;

D O I：

10.1063/1.5128109

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 mu m to 25 mu m and pitches as small as 5 mu m. 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.

引用

页数：5

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