scholarly journals Fast scanning heterodyne receiver for the measurement of the time evolution of the electron temperature profile on TFTR

1984 ◽  
Author(s):  
G. Taylor ◽  
P. Efthimion ◽  
M. McCarthy ◽  
V. Arunasalam ◽  
R. Bitzer ◽  
...  
1984 ◽  
Vol 55 (11) ◽  
pp. 1739-1743 ◽  
Author(s):  
G. Taylor ◽  
P. Efthimion ◽  
M. McCarthy ◽  
V. Arunasalam ◽  
R. Bitzer ◽  
...  

1985 ◽  
Vol 56 (5) ◽  
pp. 928-930 ◽  
Author(s):  
G. Taylor ◽  
P. C. Efthimion ◽  
M. McCarthy ◽  
E. Fredd ◽  
M. A. Goldman ◽  
...  

2009 ◽  
Vol 27 (2) ◽  
pp. 321-326 ◽  
Author(s):  
K.I. Popov ◽  
V.Yu. Bychenkov ◽  
W. Rozmus ◽  
V.F. Kovalev ◽  
R.D. Sydora

AbstractKinetic collisionless expansion of a spherical cluster composed of light and heavy cold ions and hot electrons is studied for arbitrary electron temperature. A wide set of regimes of plasma expansion, from nearly quasi-neutral to Coulomb explosion, is described from a unified description. The time evolution of the velocity, density, and energy spectra for accelerated ions is studied. The study demonstrates that an optimum light ion concentration from few percent to few tens percent, depending on the electron temperature, leads to a quasi-monoenergetic spectra with numbers as high as 70–80% of the total number of light ions.


2018 ◽  
Vol 16 (6) ◽  
pp. 385-390
Author(s):  
Shikha BINWAL ◽  
Jay K JOSHI ◽  
Shantanu Kumar KARKARI ◽  
Predhiman Krishan KAW ◽  
Lekha NAIR ◽  
...  

A floating emissive probe has been used to obtain the spatial electron temperature (Te) profile in a 13.56 MHz parallel plate capacitive coupled plasma. The effect of an external transverse magnetic field and pressure on the electron temperature profile has been discussed. In the un-magnetised case, the bulk region of the plasma has a uniform Te. Upon application of the magnetic field, the Te profile becomes non-uniform and skewed.  With increase in pressure, there is an overall reduction in electron temperature. The regions adjacent to the electrodes witnessed a higher temperature than the bulk for both cases. The emissive probe results have also been compared with particle-in-cell simulation results for the un-magnetised case.


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