| Autor: |
Bergerson WF; University of California-Los Angeles, Los Angeles, California 90095, USA. wfbergerson@ucla.edu, Xu P, Irby JH, Brower DL, Ding WX, Marmar ES |
| Jazyk: |
angličtina |
| Zdroj: |
The Review of scientific instruments [Rev Sci Instrum] 2012 Oct; Vol. 83 (10), pp. 10E316. |
| DOI: |
10.1063/1.4731757 |
| Abstrakt: |
A laser-based (2.55 THz) mulitchord polarimeter is now operational on Alcator C-Mod and is used to make measurements of the internal magnetic field structure as well as plasma fluctuations. The polarimeter is designed to measure the Faraday effect for high-field (up to 8.3 T) and high-density (up to 5 × 10(20) m(-3)) ITER relevant plasma conditions. Initial 3 chord tests are consistent with magnetic equilibrium reconstructions and indicate no measurable contamination from the toroidal magnetic field due to the Cotton-Mouton effect or misalignment. Time response of <1 μs enables the measurement of fast equilibrium temporal dynamics as well as high-frequency fluctuations. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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