An Analytical Method for the Abel Inversion of Asymmetrical Gaussian Profiles  

作　　者：徐国盛 万宝年 

机构地区：[1]Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Plasma Science and Technology》2007年第1期15-18,共4页等离子体科学和技术（英文版）

基　　金：supported by the National Natural Science Foundation of China （No. 10235010）; the special fund for scientific research startup to the winner of the Chinese Academy of Sciences President Award. As well as in part by JSPS-CAS Core-University Program on Plasma and Nuclear Fusion

摘　　要：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.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.

关 键 词：TOKAMAK Abel inversion particle transport anomalous pinch 

分 类 号：TL631.24[核科学技术—核技术及应用]