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Title: Neutral particle beam intensity controller

Abstract

The neutral beam intensity controller is based on selected magnetic defocusing of the ion beam prior to neutralization. The defocused portion of the beam is dumped onto a beam dump disposed perpendicular to the beam axis. Selective defocusing is accomplished by means of a magnetic field generator disposed about the neutralizer so that the field is transverse to the beam axis. The magnetic field intensity is varied to provide the selected partial beam defocusing of the ions prior to neutralization. The desired focused neutral beam portion passes along the beam path through a defining aperture in the beam dump, thereby controlling the desired fraction of neutral particles transmitted to a utilization device without altering the kinetic energy level of the desired neutral particle fraction. By proper selection of the magnetic field intensity, virtually zero through 100% intensity control of the neutral beam is achieved.

Inventors:
Issue Date:
OSTI Identifier:
6101890
Application Number:
ON: TI85006411
Assignee:
Dept. of Energy EDB-85-042045
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NEUTRAL BEAM SOURCES; CONTROL SYSTEMS; MAGNETIC FIELDS; NEUTRAL ATOM BEAM INJECTION; RELIABILITY; SPECIFICATIONS; BEAM INJECTION; 700205* - Fusion Power Plant Technology- Fuel, Heating, & Injection Systems

Citation Formats

Dagenhart, W.K. Neutral particle beam intensity controller. United States: N. p., 1984. Web.
Dagenhart, W.K. Neutral particle beam intensity controller. United States.
Dagenhart, W.K. Tue . "Neutral particle beam intensity controller". United States.
@article{osti_6101890,
title = {Neutral particle beam intensity controller},
author = {Dagenhart, W.K.},
abstractNote = {The neutral beam intensity controller is based on selected magnetic defocusing of the ion beam prior to neutralization. The defocused portion of the beam is dumped onto a beam dump disposed perpendicular to the beam axis. Selective defocusing is accomplished by means of a magnetic field generator disposed about the neutralizer so that the field is transverse to the beam axis. The magnetic field intensity is varied to provide the selected partial beam defocusing of the ions prior to neutralization. The desired focused neutral beam portion passes along the beam path through a defining aperture in the beam dump, thereby controlling the desired fraction of neutral particles transmitted to a utilization device without altering the kinetic energy level of the desired neutral particle fraction. By proper selection of the magnetic field intensity, virtually zero through 100% intensity control of the neutral beam is achieved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {5}
}