Sintered wire cesium dispenser photocathode
Abstract
A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.
- Inventors:
- Issue Date:
- Research Org.:
- Calabazas Creek Research, Inc., San Mateo, CA, USA
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1126914
- Patent Number(s):
- 8664853
- Application Number:
- 13/587,200
- Assignee:
- Calabazas Creek Research, Inc. (San Mateo, CA); University of Maryland (College Park, MD)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- SC0006208
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Montgomery, Eric J, Ives, R. Lawrence, and Falce, Louis R. Sintered wire cesium dispenser photocathode. United States: N. p., 2014.
Web.
Montgomery, Eric J, Ives, R. Lawrence, & Falce, Louis R. Sintered wire cesium dispenser photocathode. United States.
Montgomery, Eric J, Ives, R. Lawrence, and Falce, Louis R. Tue .
"Sintered wire cesium dispenser photocathode". United States. https://www.osti.gov/servlets/purl/1126914.
@article{osti_1126914,
title = {Sintered wire cesium dispenser photocathode},
author = {Montgomery, Eric J and Ives, R. Lawrence and Falce, Louis R},
abstractNote = {A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 04 00:00:00 EST 2014},
month = {Tue Mar 04 00:00:00 EST 2014}
}
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Works referencing / citing this record:
Sintered wire cesium dispenser photocathode
patent, March 2014
- Montgomery, Eric John; Ives, R. Lawrence; Falce, Louis R.
- US Patent Document 8,664,853