Abstract
In this work we analyze the spikes in the H-alpha emission, and density turbulence in runaway discharges in the TCABR tokamak. For the plasma edge density fluctuations, we find a symmetric-recurrent-type turbulence, with the same statistics found in measures of low-dimensional recurrent chaotic systems. For the plasma core fluctuations, we note that the line density oscillations axe synchronized to the H-alpha oscillations. In addition, we suggest that both the onset of the H-alpha spikes and the line density oscillations axe triggered by a process similar to the bifurcation responsible for the firing of neurons.
| Original language | English |
|---|---|
| Pages (from-to) | 95-99 |
| Number of pages | 5 |
| Journal | Brazilian Journal of Physics |
| Volume | 32 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 2002 |
Keywords
- disruptions
- JET
Cite this
Statistics of plasma fluctuations in runaway discharges in TCABR tokamak. / Baptista, M S ; Caldas, I L ; de Sa, W P ; Elizondo, J I .
In: Brazilian Journal of Physics, Vol. 32, No. 1, 03.2002, p. 95-99.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Statistics of plasma fluctuations in runaway discharges in TCABR tokamak
AU - Baptista, M S
AU - Caldas, I L
AU - de Sa, W P
AU - Elizondo, J I
PY - 2002/3
Y1 - 2002/3
N2 - In this work we analyze the spikes in the H-alpha emission, and density turbulence in runaway discharges in the TCABR tokamak. For the plasma edge density fluctuations, we find a symmetric-recurrent-type turbulence, with the same statistics found in measures of low-dimensional recurrent chaotic systems. For the plasma core fluctuations, we note that the line density oscillations axe synchronized to the H-alpha oscillations. In addition, we suggest that both the onset of the H-alpha spikes and the line density oscillations axe triggered by a process similar to the bifurcation responsible for the firing of neurons.
AB - In this work we analyze the spikes in the H-alpha emission, and density turbulence in runaway discharges in the TCABR tokamak. For the plasma edge density fluctuations, we find a symmetric-recurrent-type turbulence, with the same statistics found in measures of low-dimensional recurrent chaotic systems. For the plasma core fluctuations, we note that the line density oscillations axe synchronized to the H-alpha oscillations. In addition, we suggest that both the onset of the H-alpha spikes and the line density oscillations axe triggered by a process similar to the bifurcation responsible for the firing of neurons.
KW - disruptions
KW - JET
U2 - 10.1590/S0103-97332002000100018
DO - 10.1590/S0103-97332002000100018
M3 - Article
VL - 32
SP - 95
EP - 99
JO - Brazilian Journal of Physics
JF - Brazilian Journal of Physics
SN - 0103-9733
IS - 1
ER -