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Measurements of the runaway electron energy during disruptions in the tokamak TEXTOR
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Calorimetric measurements of the total runaway electron energy are carried out using a reciprocating probe during induced TEXTOR disruptions. A comparison with the energy inferred from runaway energy spectra, which are measured with a scintillator probe, is used as an independent check of the results. A typical runaway current of 100 kA at TEXTOR contains 30 to 35 kJ of runaway energy. The dependencies of the runaway energy on the runaway current, the radial probe position, the toroidal magnetic field and the predisruptive plasma current are studied. The conversion efficiency of the magnetic plasma energy into runaway energy is calculated to be up to 26%.
Title: Measurements of the runaway electron energy during disruptions in the tokamak TEXTOR
Description:
Calorimetric measurements of the total runaway electron energy are carried out using a reciprocating probe during induced TEXTOR disruptions.
A comparison with the energy inferred from runaway energy spectra, which are measured with a scintillator probe, is used as an independent check of the results.
A typical runaway current of 100 kA at TEXTOR contains 30 to 35 kJ of runaway energy.
The dependencies of the runaway energy on the runaway current, the radial probe position, the toroidal magnetic field and the predisruptive plasma current are studied.
The conversion efficiency of the magnetic plasma energy into runaway energy is calculated to be up to 26%.
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