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:
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1166751
- Patent Number(s):
- 8922107
- Application Number:
- 14/115,534
- Assignee:
- Brookhaven Science Associates, LLC (Upton, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- 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. Tue .
"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 = {},
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
- Rao, Triveni; Walsh, John; Gangone, Elizabeth
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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