Cold cathodes for sealed-off CO2lasers
نویسندگان
چکیده
منابع مشابه
Miniature X-ray Tubes Utilizing Carbon-nanotube-based Cold Cathodes
The electron field-emission properties of carbon nanotubes enable the fabrication of cold cathodes for a variety of vacuum device applications. The utilization of these cathodes is an attractive alternative for the replacement of thermionic or hot cathodes for generating X-rays. Miniature X-ray tubes have been fabricated using triode-style carbon nanotubebased cathodes. In this paper we report ...
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Gigahertz to terahertz radiation sources based on cold-cathode vacuum electron technology are pursued, because its unique characteristics of instant switch-on and power saving are important to military and space applications. Gigahertz gyrotron was reported using carbon nanotube (CNT) cold-cathode. It is reported here in first time that a fully-sealed CNT cold-cathode 0.22 THz-gyrotron is reali...
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There is an increasing need for broadband tunable lasers, with a narrow line-width, in the near-infrared region. Especially spectroscopists are interested in the region around 5/am, but also for laser-induced chemistry and air-pollution monitoring there are interesting applications for lasers in this wavelength region. A tunable cw CO laser will be a very attractive candidate because of its hig...
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Low current x-ray tubes operating at 25–40 kV have been developed using monolithic carbon nanotube CNT cold cathodes as electron sources. The authors have tested CNT cathodes from various sources. They were systematically evaluated and conditioned in a vacuum chamber and then went through high temperature baking and high voltage processing of standard tube production processes. Acceptance crite...
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ژورنال
عنوان ژورنال: IEEE Journal of Quantum Electronics
سال: 1973
ISSN: 0018-9197,1558-1713
DOI: 10.1109/jqe.1973.1077662