Advanced nano-scandate cathode

Daniel E. Bugaris; Claudia Goggin; Kerry Baker; John Balk; Daniel Busbaher; Jack Tucek

doi:10.1109/IVEC45766.2020.9520534

Advanced nano-scandate cathode

Daniel E. Bugaris, Claudia Goggin, Kerry Baker, John Balk, Daniel Busbaher, Jack Tucek

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Scandate cathodes have the potential to replace conventional cathodes because of their improved emission characteristics. Nevertheless, it remains a challenge in this field to produce scandate cathodes with uniform surface emission in a reproducible manner. In this study, we report on scandate cathode emitters prepared from a novel nano-scandia/tungsten composite powder. Processing improvements have been developed to yield high-quality emitter surfaces. Emission testing demonstrates a greater than 200°C decrease (improvement) in knee temperature versus the standard M-type cathode. There is an on-going effort to quantify the work function of the cathode surface prior to and following activation.

Original language	English
Title of host publication	2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020
Pages	79-80
Number of pages	2
ISBN (Electronic)	9781538682883
DOIs	https://doi.org/10.1109/IVEC45766.2020.9520534
State	Published - Oct 19 2020
Event	21st IEEE International Conference on Vacuum Electronics, IVEC 2020 - Monterey, United States Duration: Oct 19 2020 → Oct 22 2020

Publication series

Name	2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020

Conference

Conference	21st IEEE International Conference on Vacuum Electronics, IVEC 2020
Country/Territory	United States
City	Monterey
Period	10/19/20 → 10/22/20

Bibliographical note

Funding Information:
This work was financially supported by Engi-Mat Co. (formerly nGimat LLC) through U.S. Navy STTR contract N00253-17-C-0014.

Publisher Copyright:
© 2020 IEEE.

Keywords

Knee temperature
Scandate cathode
Scandia nanopowder
Tungsten
Work function

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

Access to Document

10.1109/IVEC45766.2020.9520534

Cite this

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title = "Advanced nano-scandate cathode",

abstract = "Scandate cathodes have the potential to replace conventional cathodes because of their improved emission characteristics. Nevertheless, it remains a challenge in this field to produce scandate cathodes with uniform surface emission in a reproducible manner. In this study, we report on scandate cathode emitters prepared from a novel nano-scandia/tungsten composite powder. Processing improvements have been developed to yield high-quality emitter surfaces. Emission testing demonstrates a greater than 200°C decrease (improvement) in knee temperature versus the standard M-type cathode. There is an on-going effort to quantify the work function of the cathode surface prior to and following activation.",

keywords = "Knee temperature, Scandate cathode, Scandia nanopowder, Tungsten, Work function",

author = "Bugaris, {Daniel E.} and Claudia Goggin and Kerry Baker and John Balk and Daniel Busbaher and Jack Tucek",

note = "Funding Information: This work was financially supported by Engi-Mat Co. (formerly nGimat LLC) through U.S. Navy STTR contract N00253-17-C-0014. Publisher Copyright: {\textcopyright} 2020 IEEE.; 21st IEEE International Conference on Vacuum Electronics, IVEC 2020 ; Conference date: 19-10-2020 Through 22-10-2020",

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doi = "10.1109/IVEC45766.2020.9520534",

language = "English",

series = "2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020",

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Bugaris, DE, Goggin, C, Baker, K, Balk, J, Busbaher, D & Tucek, J 2020, Advanced nano-scandate cathode. in 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020. 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020, pp. 79-80, 21st IEEE International Conference on Vacuum Electronics, IVEC 2020, Monterey, United States, 10/19/20. https://doi.org/10.1109/IVEC45766.2020.9520534

TY - GEN

T1 - Advanced nano-scandate cathode

AU - Bugaris, Daniel E.

AU - Goggin, Claudia

AU - Baker, Kerry

AU - Balk, John

AU - Busbaher, Daniel

AU - Tucek, Jack

PY - 2020/10/19

Y1 - 2020/10/19

N2 - Scandate cathodes have the potential to replace conventional cathodes because of their improved emission characteristics. Nevertheless, it remains a challenge in this field to produce scandate cathodes with uniform surface emission in a reproducible manner. In this study, we report on scandate cathode emitters prepared from a novel nano-scandia/tungsten composite powder. Processing improvements have been developed to yield high-quality emitter surfaces. Emission testing demonstrates a greater than 200°C decrease (improvement) in knee temperature versus the standard M-type cathode. There is an on-going effort to quantify the work function of the cathode surface prior to and following activation.

AB - Scandate cathodes have the potential to replace conventional cathodes because of their improved emission characteristics. Nevertheless, it remains a challenge in this field to produce scandate cathodes with uniform surface emission in a reproducible manner. In this study, we report on scandate cathode emitters prepared from a novel nano-scandia/tungsten composite powder. Processing improvements have been developed to yield high-quality emitter surfaces. Emission testing demonstrates a greater than 200°C decrease (improvement) in knee temperature versus the standard M-type cathode. There is an on-going effort to quantify the work function of the cathode surface prior to and following activation.

KW - Knee temperature

KW - Scandate cathode

KW - Scandia nanopowder

KW - Tungsten

KW - Work function

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DO - 10.1109/IVEC45766.2020.9520534

M3 - Conference contribution

AN - SCOPUS:85115290616

T3 - 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020

SP - 79

EP - 80

BT - 2020 IEEE 21st International Conference on Vacuum Electronics, IVEC 2020

T2 - 21st IEEE International Conference on Vacuum Electronics, IVEC 2020

Y2 - 19 October 2020 through 22 October 2020

ER -

Advanced nano-scandate cathode

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this