A truncated-cone carbon nanotube cold-cathode electron gun

Xuesong Yuan; Yu Zhang; Matthew Cole; Yang Yan; Xiaoyun Li; Richard Parmee; Jianqiang Wu; Ningsheng Xu; William I. Milne; Shaozhi Deng

doi:10.1016/j.carbon.2017.03.046

A truncated-cone carbon nanotube cold-cathode electron gun

Xuesong Yuan, Yu Zhang, Matthew Cole, Yang Yan, Xiaoyun Li, Richard Parmee, Jianqiang Wu, Ningsheng Xu, William I. Milne, Shaozhi Deng

Research output: Contribution to journal › Article › peer-review

28 Citations (SciVal)

Abstract

A concurrently high beam current and high current density carbon nanotube (CNT) cold cathode electron gun is herein developed. A radial electron source has been realized, formed from CNTs synthesized directly on the side walls of a stainless steel truncated-cone electron gun. Experimental results evidenced a 35 kV/50 mA electron beam can achieve a beam transparency of nearly 100% through the use of double anodes and crossed electric and magnetic fields. A maximum beam current density of 3.5 A/cm² was achieved. These results demonstrate the potential impact of coupling novel cold cathode gun architectures and emerging nanomaterials and their collective role in augmenting the performance of incumbent electron gun technologies, alongside allowing for the realization new types of field emission vacuum electron radiation sources.

Original language	English
Pages (from-to)	374-379
Number of pages	6
Journal	Carbon
Volume	120
DOIs	https://doi.org/10.1016/j.carbon.2017.03.046
Publication status	Published - 1 Aug 2017

ASJC Scopus subject areas

General Chemistry

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10.1016/j.carbon.2017.03.046

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title = "A truncated-cone carbon nanotube cold-cathode electron gun",

abstract = "A concurrently high beam current and high current density carbon nanotube (CNT) cold cathode electron gun is herein developed. A radial electron source has been realized, formed from CNTs synthesized directly on the side walls of a stainless steel truncated-cone electron gun. Experimental results evidenced a 35 kV/50 mA electron beam can achieve a beam transparency of nearly 100% through the use of double anodes and crossed electric and magnetic fields. A maximum beam current density of 3.5 A/cm2 was achieved. These results demonstrate the potential impact of coupling novel cold cathode gun architectures and emerging nanomaterials and their collective role in augmenting the performance of incumbent electron gun technologies, alongside allowing for the realization new types of field emission vacuum electron radiation sources.",

author = "Xuesong Yuan and Yu Zhang and Matthew Cole and Yang Yan and Xiaoyun Li and Richard Parmee and Jianqiang Wu and Ningsheng Xu and Milne, {William I.} and Shaozhi Deng",

year = "2017",

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doi = "10.1016/j.carbon.2017.03.046",

language = "English",

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T1 - A truncated-cone carbon nanotube cold-cathode electron gun

AU - Yuan, Xuesong

AU - Zhang, Yu

AU - Cole, Matthew

AU - Yan, Yang

AU - Li, Xiaoyun

AU - Parmee, Richard

AU - Wu, Jianqiang

AU - Xu, Ningsheng

AU - Milne, William I.

AU - Deng, Shaozhi

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A concurrently high beam current and high current density carbon nanotube (CNT) cold cathode electron gun is herein developed. A radial electron source has been realized, formed from CNTs synthesized directly on the side walls of a stainless steel truncated-cone electron gun. Experimental results evidenced a 35 kV/50 mA electron beam can achieve a beam transparency of nearly 100% through the use of double anodes and crossed electric and magnetic fields. A maximum beam current density of 3.5 A/cm2 was achieved. These results demonstrate the potential impact of coupling novel cold cathode gun architectures and emerging nanomaterials and their collective role in augmenting the performance of incumbent electron gun technologies, alongside allowing for the realization new types of field emission vacuum electron radiation sources.

AB - A concurrently high beam current and high current density carbon nanotube (CNT) cold cathode electron gun is herein developed. A radial electron source has been realized, formed from CNTs synthesized directly on the side walls of a stainless steel truncated-cone electron gun. Experimental results evidenced a 35 kV/50 mA electron beam can achieve a beam transparency of nearly 100% through the use of double anodes and crossed electric and magnetic fields. A maximum beam current density of 3.5 A/cm2 was achieved. These results demonstrate the potential impact of coupling novel cold cathode gun architectures and emerging nanomaterials and their collective role in augmenting the performance of incumbent electron gun technologies, alongside allowing for the realization new types of field emission vacuum electron radiation sources.

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JO - Carbon

JF - Carbon

ER -

A truncated-cone carbon nanotube cold-cathode electron gun

Abstract

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