Online equilibrium reconstruction for EAST plasma discharge

Author

Luo, Z.P. ; Xiao, B.J. ; Zhu, Y.F. ; Yang, F.

Author_Institution

Inst. of Plasma Phys., Chinese Acad. of Sci., Hefei, China

fYear

2009

fDate

10-15 May 2009

Firstpage

102

Lastpage

105

Abstract

The online equilibrium reconstruction, based on the offline version of the EFIT code and MPI library, can finish the calculation between two pulses. It combined the online data acquisition, parallel calculation, and data storing together. The program on the master node of the cluster detect the end of the shot actively, read diagnostic data from EAST mdsplus server once the data storing ends, and write the results to EFIT mdsplus server. These process runs automatically on IBM blade center with 9 nodes. The total time is about 1 seconds to server minutes, which depends on the length of the plasma discharge. With the results stored in mdsplus server, it is convenient for operator and physicist to analyze the status of plasma discharge using visualization tools.

Keywords

Tokamak devices; data acquisition; file servers; information storage; plasma diagnostics; signal reconstruction; EAST mdsplus server; EAST plasma discharge; EFIT code; EFIT mdsplus server; IBM blade center; MPI library; data storing; online data acquisition; online equilibrium reconstruction; parallel calculation; plasma diagnostics; plasma discharge visualization; Current density; Data acquisition; Data analysis; Gunshot detection systems; Libraries; Plasma density; Plasma diagnostics; Plasma measurements; Reconstruction algorithms; Tokamaks; EAST; Online; Reconstruction; Tokamak;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 2009. RT '09. 16th IEEE-NPSS

Conference_Location

Beijing

Print_ISBN

978-1-4244-4454-0

Type

conf

DOI

10.1109/RTC.2009.5322087

Filename

5322087