Results 51 to 60 of about 11,554 (146)

A Carbon-Nanotube Cold-Cathode Reflex Klystron Oscillator: Fabrication @ X-Band and Returning Electron Beam Realization

open access: yes, 2022
This paper presents the design and fabrication of a reflex klystron oscillator based on a carbon nanotube (CNT) cold-cathode. An X-band klystron oscillator structure is assembled with a CNT cold-cathode electron gun with an electrostatic focusing, a re ...
Yanlin Ke   +4 more
core   +1 more source

Nanotubes as Cold Cathode Elements

open access: yesAdvances in Electrical and Electronic Engineering, 2005
Several materials have been developed, investigated and have exhibited various emission properties following the intent to use them as cold cathodes. The most significant steps in the development of such materials were probably diamon/DLC thin films and ...
Jan Janik, Peter Vinduska, Marian Marton
doaj  

ZnO Nanowire Cold Cathode Hemispherical X‐Ray Sources

open access: yesAdvanced Electronic Materials
Curved or spherical X‐ray sources are significant for use in intraoperative radiotherapy, adaptive static medical imaging, and high‐throughput industrial inspection, but they are hard to achieve using traditional thermionic cathode point electron sources.
Zhipeng Zhang   +6 more
doaj   +1 more source

Cathode design for a low-velocity metastable neon cold cathode discharge source

open access: yes, 2001
We present new measurements on the characteristics of a cold cathode, low velocity metastable neon discharge atomic beam source. We have measured both the relative metastable flux and the most probable velocity as a function of the discharge current for ...
Ashmore, Jonathan   +3 more
core   +1 more source

Cold cathode rf guns based study on field emission

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
Recently cold cathodes based on field emission have drawn attention and been considered to drive accelerators and free electron lasers, due to the progress in field emitter arrays and planar emitters like diamond films.
Xiangkun Li   +4 more
doaj   +1 more source

Commentaire: Pourquoi les Expériences de «Fusion Froide» de Deutérium Sont-elles Si Difficiles à Reproduire?

open access: yesCHIMIA, 1989
The particular conditions of the experiments described by Fleischmann and Pons, relative to “cold nuclear fusion” are examined. The possible role played by the platinum anode and the alkaline LiOD solution is discussed.
Jan Augustynski
doaj   +1 more source

Field emission enhancement by the quantum structure in an ultrathin multilayer planar cold cathode

open access: yes, 2008
Field electron emission (FE) from an ultrathin multilayer planar cold cathode (UMPC) including a quantum well structure has been both experimentally and theoretically investigated.
hyan@bjut.edu.cn   +6 more
core  

CO2 laser cold cathode study

open access: yes, 1972
The procedure for evaluating reliable sputter-free cold cathodes for carbon dioxide lasers is discussed. The purpose of the development is to obtain cold cathodes with service life in excess of 10,000 hours.
Hochuli, U.
core  

Characteristics of Creeping Discharge on a Dielectric-Covered Cathode

open access: yesApplied Sciences
This study investigates the creepage discharge method applied to a cold cathode to enhance discharge performance. Creepage discharge refers to the movement of electrical discharges along an insulating surface, increasing electron emission from dielectric
Isak Lineekela Shawapala   +4 more
doaj   +1 more source

Methods of triggering for the cold-cathode thyratrons with a trigger system based on an auxiliary glow discharge

open access: yesAIP Advances, 2019
The paper deals with the investigations of the modernized version of the cold-cathode thyratron TPI1-10k/50 as applied to the problem of nanosecond triggering.
Y. D. Korolev   +5 more
doaj   +1 more source

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