Magnetron cathodes in plasma electrode Pockels cells
Abstract
Magnetron cathodes, which produce high current discharges, form greatly improved plasma electrodes on each side of an electro-optic crystal. The plasma electrode has a low pressure gas region on both sides of the crystal. When the gas is ionized, e.g., by a glow discharge in the low pressure gas, the plasma formed is a good conductor. The gas electrode acts as a highly uniform conducting electrode. Since the plasma is transparent to a high energy laser beam passing through the crystal, the plasma is transparent. A crystal exposed from two sides to such a plasma can be charged up uniformly to any desired voltage. A typical configuration utilizes helium at 50 millitorr operating pressure and 2 kA discharge current. The magnetron cathode produces a more uniform plasma and allows a reduced operating pressure which leads to lower plasma resistivity and a more uniform charge on the crystal. 5 figs.
- Inventors:
- Issue Date:
- Research Org.:
- University of California
- OSTI Identifier:
- 46316
- Patent Number(s):
- 5,410,425
- Application Number:
- PAN: 8-058,844
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 25 Apr 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; POCKELS CELL; CATHODES; IONIZATION; PLASMA PRODUCTION; ELECTRIC CONDUCTIVITY; LASER RADIATION; LIGHT TRANSMISSION
Citation Formats
Rhodes, M A. Magnetron cathodes in plasma electrode Pockels cells. United States: N. p., 1995.
Web.
Rhodes, M A. Magnetron cathodes in plasma electrode Pockels cells. United States.
Rhodes, M A. Tue .
"Magnetron cathodes in plasma electrode Pockels cells". United States.
@article{osti_46316,
title = {Magnetron cathodes in plasma electrode Pockels cells},
author = {Rhodes, M A},
abstractNote = {Magnetron cathodes, which produce high current discharges, form greatly improved plasma electrodes on each side of an electro-optic crystal. The plasma electrode has a low pressure gas region on both sides of the crystal. When the gas is ionized, e.g., by a glow discharge in the low pressure gas, the plasma formed is a good conductor. The gas electrode acts as a highly uniform conducting electrode. Since the plasma is transparent to a high energy laser beam passing through the crystal, the plasma is transparent. A crystal exposed from two sides to such a plasma can be charged up uniformly to any desired voltage. A typical configuration utilizes helium at 50 millitorr operating pressure and 2 kA discharge current. The magnetron cathode produces a more uniform plasma and allows a reduced operating pressure which leads to lower plasma resistivity and a more uniform charge on the crystal. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {4}
}