Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same
Abstract
A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first cold-weld ring disposed between the cathode element and the annular insulating spacer and a second cold-weld ring disposed between the annular insulating spacer and the diamond window element. The cathode capsule is formed by a vacuum cold-weld process such that the first cold-weld ring forms a hermetical seal between the cathode element and the annular insulating spacer and the second cold-weld ring forms a hermetical seal between the annular spacer and the diamond window element whereby a vacuum encapsulated chamber is formed within the capsule.
- Inventors:
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1166751
- Patent Number(s):
- 8,922,107
- Application Number:
- 14/115,534
- Assignee:
- Brookhaven Science Associates, LLC (Upton, NY)
- DOE Contract Number:
- AC02-98CH10886
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 May 09
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 30 DIRECT ENERGY CONVERSION
Citation Formats
Rao, Triveni, Walsh, John, and Gangone, Elizabeth. Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same. United States: N. p., 2014.
Web.
Rao, Triveni, Walsh, John, & Gangone, Elizabeth. Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same. United States.
Rao, Triveni, Walsh, John, and Gangone, Elizabeth. 2014.
"Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same". United States. https://www.osti.gov/servlets/purl/1166751.
@article{osti_1166751,
title = {Vacuum encapsulated hermetically sealed diamond amplified cathode capsule and method for making same},
author = {Rao, Triveni and Walsh, John and Gangone, Elizabeth},
abstractNote = {A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first cold-weld ring disposed between the cathode element and the annular insulating spacer and a second cold-weld ring disposed between the annular insulating spacer and the diamond window element. The cathode capsule is formed by a vacuum cold-weld process such that the first cold-weld ring forms a hermetical seal between the cathode element and the annular insulating spacer and the second cold-weld ring forms a hermetical seal between the annular spacer and the diamond window element whereby a vacuum encapsulated chamber is formed within the capsule.},
doi = {},
url = {https://www.osti.gov/biblio/1166751},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 30 00:00:00 EST 2014},
month = {Tue Dec 30 00:00:00 EST 2014}
}
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Vacuum Encapsulated, High Temperature Diamond Amplified Cathode Capsule and Method for Making Same
patent-application, December 2013
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Works referencing / citing this record:
Vacuum encapsulated, high temperature diamond amplified cathode capsule and method for making same
patent, December 2015
- Rao, Triveni; Walsh, John; Gangone, Elizabeth
- US Patent Document 9,224,570