Direct work function measurement of activated M-type dispenser cathodes

Phillip Swartzentruber; T. John Balk; James O. Tarter; Daniel Busbaher

doi:10.1109/IVEC.2014.6857526

Direct work function measurement of activated M-type dispenser cathodes

Phillip Swartzentruber, T. John Balk, James O. Tarter, Daniel Busbaher

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

4 Scopus citations

Abstract

M-type dispenser cathodes were activated in a vacuum chamber and the absolute work function determined from the contact potential difference between the cathode and a precisely calibrated probe tip. The experimental test setup allowed for cathodes to be activated and the work function measured without breaking vacuum. In addition to the commercially available Os-Ru coating from Ceradyne, Inc., a 3M Company, the work functions of Os-Ru coatings with engineered microstructures were measured to quantify microstructural influences. The work functions of both pre- and post-activation cathodes are presented and discussed in light of the microstructure of their Os-Ru coatings.

Original language	English
Title of host publication	IEEE International Vacuum Electronics Conference, IVEC 2014
Pages	135-136
Number of pages	2
DOIs	https://doi.org/10.1109/IVEC.2014.6857526
State	Published - 2014
Event	15th IEEE International Vacuum Electronics Conference, IVEC 2014 - Monterey, CA, United States Duration: Apr 22 2014 → Apr 24 2014

Publication series

Name	IEEE International Vacuum Electronics Conference, IVEC 2014

Conference

Conference	15th IEEE International Vacuum Electronics Conference, IVEC 2014
Country/Territory	United States
City	Monterey, CA
Period	4/22/14 → 4/24/14

Keywords

M-type
Os-Ru
microstructure
work function

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/IVEC.2014.6857526

Cite this

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title = "Direct work function measurement of activated M-type dispenser cathodes",

abstract = "M-type dispenser cathodes were activated in a vacuum chamber and the absolute work function determined from the contact potential difference between the cathode and a precisely calibrated probe tip. The experimental test setup allowed for cathodes to be activated and the work function measured without breaking vacuum. In addition to the commercially available Os-Ru coating from Ceradyne, Inc., a 3M Company, the work functions of Os-Ru coatings with engineered microstructures were measured to quantify microstructural influences. The work functions of both pre- and post-activation cathodes are presented and discussed in light of the microstructure of their Os-Ru coatings.",

keywords = "M-type, Os-Ru, microstructure, work function",

author = "Phillip Swartzentruber and Balk, {T. John} and Tarter, {James O.} and Daniel Busbaher",

year = "2014",

doi = "10.1109/IVEC.2014.6857526",

language = "English",

isbn = "9781467301879",

series = "IEEE International Vacuum Electronics Conference, IVEC 2014",

pages = "135--136",

booktitle = "IEEE International Vacuum Electronics Conference, IVEC 2014",

note = "15th IEEE International Vacuum Electronics Conference, IVEC 2014 ; Conference date: 22-04-2014 Through 24-04-2014",

}

Swartzentruber, P, Balk, TJ, Tarter, JO & Busbaher, D 2014, Direct work function measurement of activated M-type dispenser cathodes. in IEEE International Vacuum Electronics Conference, IVEC 2014., 6857526, IEEE International Vacuum Electronics Conference, IVEC 2014, pp. 135-136, 15th IEEE International Vacuum Electronics Conference, IVEC 2014, Monterey, CA, United States, 4/22/14. https://doi.org/10.1109/IVEC.2014.6857526

Direct work function measurement of activated M-type dispenser cathodes. / Swartzentruber, Phillip; Balk, T. John; Tarter, James O. et al.
IEEE International Vacuum Electronics Conference, IVEC 2014. 2014. p. 135-136 6857526 (IEEE International Vacuum Electronics Conference, IVEC 2014).

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

TY - GEN

T1 - Direct work function measurement of activated M-type dispenser cathodes

AU - Swartzentruber, Phillip

AU - Balk, T. John

AU - Tarter, James O.

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AB - M-type dispenser cathodes were activated in a vacuum chamber and the absolute work function determined from the contact potential difference between the cathode and a precisely calibrated probe tip. The experimental test setup allowed for cathodes to be activated and the work function measured without breaking vacuum. In addition to the commercially available Os-Ru coating from Ceradyne, Inc., a 3M Company, the work functions of Os-Ru coatings with engineered microstructures were measured to quantify microstructural influences. The work functions of both pre- and post-activation cathodes are presented and discussed in light of the microstructure of their Os-Ru coatings.

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BT - IEEE International Vacuum Electronics Conference, IVEC 2014

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Direct work function measurement of activated M-type dispenser cathodes

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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