Measurement of neutral beam profiles on DIII-D inner wall armor tiles using scanning infrared optics

Author

Lee, R. ; Colleraine, A.P. ; Hong, R. ; Kim, J. ; Phillips, J. ; Wight, J.

Author_Institution

Gen. Atom., San Diego, CA, USA

fYear

1989

fDate

2-6 Oct 1989

Firstpage

156

Abstract

Characteristic thermal footprints made by energetic neutral beams on the inner-wall graphite tiles of the DIII-D tokamak have been examined using infrared scanning optical detectors. Horizontal and vertical neutral-beam widths are measured from the IR scanner images, and the corresponding divergence angles are estimated and compared to those obtained from calorimetry techniques. Neutral-beam injected power is estimated using a one-dimensional heat flow model and temperature data from an IR scanner

Keywords

calorimetry; fusion reactor ignition; fusion reactor instrumentation; fusion reactor operation; fusion reactor theory and design; plasma diagnostics; C; DIII-D inner wall armor tiles; DIII-D tokamak; IR scanner images; calorimetry techniques; divergence angles; infrared scanning optical detectors; injected power; inner-wall graphite tiles; neutral beam profiles; neutral-beam widths; one-dimensional heat flow model; scanning infrared optics; temperature data; thermal footprints; Atom optics; Infrared detectors; Lenses; Mirrors; Monitoring; Optical devices; Particle beam injection; Plasma measurements; Tiles; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102195

Filename

102195