The heavy ion beam diagnostic for the tokamak ISTTOK

Author

Cabral, J.A.C. ; Malaquias, A. ; Praxedes, A. ; van Toledo, W. ; Varandas, C.A.F.

Author_Institution

Inst. Superior Tecnico, Centro de Fusao Nucl., Lisboa, Portugal

Volume

22

Issue

4

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

350

Lastpage

358

Abstract

In this paper we describe the heavy ion beam diagnostic for the tokamak ISTTOK, which has been designed to determine the temporal evolution of the plasma density, poloidal magnetic field and plasma potential profiles. This diagnostic makes use of a new type of high density caesium plasma source, a multiple cell detector and a fast data acquisition system. We describe the numerical code for trajectory and beam attenuation simulations, a method for the experimental determination of the poloidal field profile, the ion gun and the detection, control and data acquisition systems. Calibration tests and the first experimental results are presented

Keywords

caesium; calibration; data acquisition; digital simulation; ion beam applications; ion beam effects; ion sources; physics computing; plasma density; plasma diagnostic techniques; plasma simulation; plasma-beam interactions; ISTTOK; beam attenuation simulation; calibration tests; control system; data acquisition system; detection system; fast data acquisition system; heavy ion beam diagnostic; high density Cs plasma source; ion gun; multiple cell detector; numerical code; plasma density; plasma potential profiles; poloidal field profile; poloidal magnetic field; temporal evolution; tokamak; trajectory simulation; Attenuation; Data acquisition; Detectors; Ion beams; Magnetic fields; Plasma density; Plasma diagnostics; Plasma simulation; Plasma sources; Tokamaks;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.310640

Filename

310640