An Analytical Method for the Abel Inversion of Asymmetrical Gaussian Profiles |
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Authors: | XU Guosheng WAN Baonian |
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Affiliation: | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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Abstract: | An analytical algorithm for fast calculation of the Abel inversion for density profile measurement in tokamak is developed. Based upon the assumptions that the particle source is negligibly small in the plasma core region, density profiles can be approximated by an asymmetrical Gaussian distribution controlled only by one parameter VoID and VoID is constant along the radial direction, the analytical algorithm is presented and examined against a testing profile. The validity is confirmed by benchmark with the standard Abel inversion method and the theoretical profile. The scope of application as well as the error analysis is also discussed in detail. |
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Keywords: | tokamak Abel inversion particle transport anomalous pinch |
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