Technique for measuring the fast /sub 3/He/sup + +/ distribution during /sub 3/He/sup + +/ minority ICRF heating

Technical Report · Mon Nov 30 23:00:00 EST 1981

DOI:https://doi.org/10.2172/5259454· OSTI ID:5259454

Post, D E; Grisham, L R; Medley, S S

A technique for measuring the fast /sub 3/He/sup + +/ distribution during /sub 3/He/sup + +/ minority ICRF heating is discussed. The technique involves the use of 10 to 100 keV neutral helium beams to neutralize the fast /sub 3/He/sup + +/ ions by double charge exchange (/sub 3/He/sup + +/ + /sub 4/He/sup 0/ ..-->.. /sub 3/He/sup 0/ + /sub 4/He/sup + +/). The neutralized fast /sub 3/He atoms then escape from the plasma and are detected by conventional neutral particle analyzing apparatus. By the use of such a technique, the effectiveness of the coupling of the ion cyclotron waves to the /sub 3/He/sup + +/ minority could be measured.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5259454
• Report Number(s): PPPL-1864; ON: DE82005729
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ATOMIC BEAMS
BEAMS
CHARGED PARTICLES
CLOSED PLASMA DEVICES
COUPLING
EFFICIENCY
ENERGY TRANSFER
HEATING
HELIUM IONS
HIGH-FREQUENCY HEATING
ICR HEATING
IONS
MEASURING METHODS
PLASMA HEATING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES