A new asymmetric Abel-inversion method for plasma interferometry in tokamaks

Technical Report · Wed Feb 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/6526209· OSTI ID:6526209

Park, H K

In order to get precise local electron density information from chordal interferometric measurement of a tokamak plasma, a self- consistent and reliable inversion method is necessary. In this paper, a new asymmetric Abel-inversion method is introduced. This method includes flexible boundary conditions, application to a non-circular geometry, and estimation of the plasma in the scrape-off layer. The advantages of this method are demonstrated by comparison with other methods. This new inversion method is applied to a parametric study which includes dependence on the Shafranov shift and elongation of the profile. The inverted results are integrated along different views and compared with other density measurements. This new method can also be applied to plasma spectroscopy. 6 refs., 6 figs.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6526209
• Report Number(s): PPPL-2592; ON: DE89006868; TRN: 89-005678
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK DEVICES
PLASMA DIAGNOSTICS
ASYMMETRY
BEAM INJECTION HEATING
ELECTRON DENSITY
ELECTRON TEMPERATURE
INTERFEROMETRY
MEASURING METHODS
PLASMA SCRAPE-OFF LAYER
BOUNDARY LAYERS
CLOSED PLASMA DEVICES
HEATING
LAYERS
PLASMA HEATING
THERMONUCLEAR DEVICES
700102* - Fusion Energy- Plasma Research- Diagnostics