Paper | Title | Page |
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TUXZO02 |
Experimental Evidence of E.M. trapped E.M. waves in a Simple Mirror Magnetic-Trap | |
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This work presents the first experimental characterization of cavity modes trapped within a plasma column in an axis-symmetric magnetic trap. Trapped wave has been characterized by means of a movable antenna as a function of the Bmin/BECR ratio and plasma parameters. The study demonstrates that E.M waves can be enclosed two R-cutoff layers, close to the B minimum position. Results suggest that the trapped waves consist of waves propagating across the magnetic field and storing large part of the E.M. power. If R-cut-off is removed by increasing the density, trapped waves are not detected longer. A typical Electron Energy Distribution Function composed by two different electron populations is measured in the layer where trapped waves are revealed, suggesting that additional heating is occurring. | ||
Slides TUXZO02 [6.058 MB] | ||
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