Neutral beamline with improved ion energy recovery
A neutral beamline generator with unneutralized ion energy recovery is provided which enhances the energy recovery of the full energy ion component of the beam exiting the neutralizer cell of the beamline. The unneutralized full energy ions exiting the neutralizer are deflected from the beam path and the electrons in the cell are blocked by a magnetic field applied transverse to the beamline in the cell exit region. The ions, which are generated at essentially ground potential and accelerated through the neutralizer cell by a negative acceleration voltage, are collected at ground potential. A neutralizer cell exit end region is provided which allows the magnetic and electric fields acting on the exiting ions to be closely coupled. As a result, the fractional energy ions exiting the cell with the full energy ions are reflected back into the gas cell. Thus, the fractional energy ions do not detract from the energy recovery efficiency of full energy ions exiting the cell which can reach the ground potential interior surfaces of the beamline housing.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4434131
- OSTI ID:
- 6731203
- Resource Relation:
- Patent File Date: Filed date 13 Apr 1981; Other Information: PAT-APPL-253641
- Country of Publication:
- United States
- Language:
- English
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Neutral beamline with improved ion energy recovery
Neutral beamline with improved ion energy recovery
Related Subjects
NEUTRAL BEAM SOURCES
DESIGN
THERMONUCLEAR DEVICES
NEUTRAL ATOM BEAM INJECTION
ACCELERATION
BEAM NEUTRALIZATION
COUPLING
EFFICIENCY
ELECTRIC FIELDS
ENERGY RECOVERY
MAGNETIC FIELDS
BEAM INJECTION
RECOVERY
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems