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Your search keyword '"Vallone, F."' showing total 4 results
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4 results on '"Vallone, F."'

1. Dynamo and superthermal electrons in RFX

Author

Murari, A., Martin, Piero, Antoni, V., Desideri, Daniele, Franz, P., Marrelli, L., Martin, P., Serianni, G., Spizzo, G., Tramontin, L., Vallone, F., Murari, A, Martines, E, Antoni, V, Desideri, D, Franz, P, Marrelli, L, Martin, P, Serianni, G, Spizzo, G, Tramontin, L, and Vallone, F

Subjects
MHD dinamo, RFP, reversed field pinch, superthermal electrons, RFX
Published
1997

2. An electron energy analyser in magnetised plasmas

Author

Antoni, V, Bagatin, M, Desideri, D, Martines, E, Serianni, G, Vallone, F, Yagi, Y, Antoni, V, Bagatin, M, Desideri, D, Martines, E, Serianni, G, Vallone, F, and Yagi, Y

Subjects
electron energy analyzer, RFP
Published
1997

3. First measurements of electron energy distribution in RFX edge plasma

Author

Yagi Y, Antoni V, Bagatin M, Desideri D, Martines E, Serianni G, Vallone F, Yagi, Y, Antoni, V, Bagatin, M, Desideri, D, Martines, E, Serianni, G, and Vallone, F

Subjects
electron energy analyzer, RFP, superthermal electron, reversed field pinch, RFX
Published
1996

4. Measurement of superthermal electron flow and temperature in a reversed-field pinch experiment by an electrostatic electron energy analyser

Author

Mario Bagatin, Emilio Martines, V. Antoni, Daniele Desideri, Yasuyuki Yagi, F. Vallone, G. Serianni, Yagi, Y, Antoni, V, Bagatin, M, Desideri, D, Martines, E, Serianni, G, and Vallone, F

Subjects
electron energy analyzer, Physics, Reversed field pinch, Plasma parameters, superthermal electron, reversed field pinch, Electron, Condensed Matter Physics, Magnetic field, Nuclear Energy and Engineering, Physics::Plasma Physics, Electric field, RFP, Pinch, Electron temperature, Atomic physics, electron distribution function, Current density, RFX
Abstract

An electrostatic electron energy analyser has been inserted for the first time in the outer region of the RFX reversed-field pinch experiment, in order to investigate and characterize the presence of a superthermal electron population. It has been found that these electrons carry most of the current density parallel to the magnetic field. The time evolution during a single discharge of the superthermal electrons current density and parallel temperature indicates that the distortion of the electron distribution function is stationary during the plasma current flat-top phase. The dependence of the superthermal temperature on the plasma parameters has been investigated by varying the plasma density, and a relationship with the ratio of the on-axis applied electric field to the critical electric field for runaway generation has been identified.

Published
1997

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