Ion-temperature and rotation-velocity profile measurements from a spatially resolving x-ray crystal spectrometer on the alcator C-Mod tokamak

Author

Hill, K.W. ; Bitter, M. ; Scott, S.D. ; Ince-Cushman, A. ; Rice, J.E. ; Reinke, M. ; Beiersdorfer, P. ; Gu, Ming-Feng ; Lee, S.G. ; Broennimann, Ch ; Eikenberry, E.F.

Author_Institution

Princeton Univ., Princeton, NJ

fYear

2008

fDate

15-19 June 2008

Firstpage

1

Lastpage

1

Abstract

In this paper, a new spatially resolving X-ray crystal spectrometer (XCS) capable of measuring continuous spatial profiles of high resolution spectra (lambda/dlambda > 6000) of He-like and H-like Ar Kalpha lines has been installed on the Alcator C-Mod tokamak. The spectrometer has an improved measurements on ion temperature (T_i), intrinsic rotation-velocity profiles (v_phi) with excellent spatial (~1 cm) and temporal resolution, and on the atomic physics of highly charged ions.The data analysis techniques, (T_i) and (v_phi) profile results, analysis of background resulting from fusion neutrons, and predictions of performance on the international tokamak ITER and other tokamaks is presented.

Keywords

Tokamak devices; X-ray spectrometers; plasma diagnostics; H-like Ar Kalpha line; He-like Ar Kalpha line; X-ray crystal spectrometer; alcator C-Mod tokamak; fusion neutrons; highly charged ions; international tokamak ITER; intrinsic rotation-velocity profiles; ion temperature; Argon; Atomic measurements; Current measurement; Data analysis; Physics; Rotation measurement; Spatial resolution; Spectroscopy; Temperature measurement; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Conference_Location

Karlsruhe

ISSN

0730-9244

Print_ISBN

978-1-4244-1929-6

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2008.4591121

Filename

4591121