@article{76e2869eb147455f99bc79c968379742,
title = "Electron gun using carbon-nanofiber field emitter",
abstract = "An electron gun constructed using carbon-nanofiber (CNF) emitters and an electrostatic Einzel lens system has been characterized for the development of a high-resolution x-ray source. The CNFs used were grown on tungsten and palladium tips by plasma-enhanced chemical-vapor deposition. Electron beams with the energies of 10<E<20 keV were focused by the electrostatic lens and impinged on a W target for x-ray radiography. Analyzing the recorded x-ray radiographs, the focal spot size of the electron beam extracted from the CNFs was estimated to be D<50 μm in diameter. Superior performance was realized by using CNFs with larger fiber radii (100-500 nm) grown sparsely on the metal tips, which were installed in a holder at the short length L=0.5 mm.",
author = "Y. Sakai and A. Haga and S. Sugita and S. Kita and Tanaka, {S. I.} and F. Okuyama and N. Kobayashi",
note = "Funding Information: The authors gratefully acknowledge Dr. Y. Okazaki, Y. Matsumoto, R. Kubota, and Y. Oga (Nagoya Institute of Technology, Nagoya, Japan) for their considerable contributions to this work. They are also greatly indebted to Professor O. Eryu (Nagoya Institute of Technology, Nagoya, Japan) for preparation of the W film target in XR. They would also like to thank Dr. S. Senda (Nagoya Institute of Technology, Nagoya, Japan), Dr. A. Yamaguchi, Dr. N. Aoki (Toshiba Corporation, Yokohama, Japan), and Professor M. Miyoshi (The University of Tokyo, Tokyo, Japan) for their valuable discussions. This study was financially supported by SENTAN, JST.",
year = "2007",
doi = "10.1063/1.2430650",
language = "English",
volume = "78",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
publisher = "American Institute of Physics Publising LLC",
number = "1",
}