Linear beam raster magnet driver based on H-bridge technique
Abstract
An improved raster magnet driver for a linear particle beam is based on an H-bridge technique. Four branches of power HEXFETs form a two-by-two switch. Switching the HEXFETs in a predetermined order and at the right frequency produces a triangular current waveform. An H-bridge controller controls switching sequence and timing. The magnetic field of the coil follows the shape of the waveform and thus steers the beam using a triangular rather than a sinusoidal waveform. The system produces a raster pattern having a highly uniform raster density distribution, eliminates target heating from non-uniform raster density distributions, and produces higher levels of beam current.
- Inventors:
- Issue Date:
- Research Org.:
- Southeastern Universities Research Association, Inc.,Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175781
- Patent Number(s):
- 7057390
- Application Number:
- 10/945,408
- Assignee:
- Southeastern Universities Research Association, Inc.
- Patent Classifications (CPCs):
-
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
- DOE Contract Number:
- AC05-84ER40150
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Sinkine, Nikolai I., Yan, Chen, Apeldoorn, Cornelis, Dail, Jeffrey Glenn, Wojcik, Randolph Frank, and Gunning, William. Linear beam raster magnet driver based on H-bridge technique. United States: N. p., 2006.
Web.
Sinkine, Nikolai I., Yan, Chen, Apeldoorn, Cornelis, Dail, Jeffrey Glenn, Wojcik, Randolph Frank, & Gunning, William. Linear beam raster magnet driver based on H-bridge technique. United States.
Sinkine, Nikolai I., Yan, Chen, Apeldoorn, Cornelis, Dail, Jeffrey Glenn, Wojcik, Randolph Frank, and Gunning, William. Tue .
"Linear beam raster magnet driver based on H-bridge technique". United States. https://www.osti.gov/servlets/purl/1175781.
@article{osti_1175781,
title = {Linear beam raster magnet driver based on H-bridge technique},
author = {Sinkine, Nikolai I. and Yan, Chen and Apeldoorn, Cornelis and Dail, Jeffrey Glenn and Wojcik, Randolph Frank and Gunning, William},
abstractNote = {An improved raster magnet driver for a linear particle beam is based on an H-bridge technique. Four branches of power HEXFETs form a two-by-two switch. Switching the HEXFETs in a predetermined order and at the right frequency produces a triangular current waveform. An H-bridge controller controls switching sequence and timing. The magnetic field of the coil follows the shape of the waveform and thus steers the beam using a triangular rather than a sinusoidal waveform. The system produces a raster pattern having a highly uniform raster density distribution, eliminates target heating from non-uniform raster density distributions, and produces higher levels of beam current.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {6}
}
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