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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-27 9:24 |
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Conference: Bucharest University Faculty of Physics 2014 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
Possible applications of the reverse bremsstrahlung phenomenon in high-power laser technology and the achievement of controlled nuclear fusion
Authors:
L.S. COZMA
Affiliation:
1) Faculty of Physics- Măgurele
E-mail
lucian.stefan@yahoo.fr
Keywords:
thermonuclear fusion, brehmsstrahlung
Abstract:
The achievement of the laser at the onset of 60s in the last century, opened a number of perspectives not even presumed until that moment. Among other things, the russian researchers L.I. Gudzenko and L.A. Shelepin, envisaged in the mid 60s the achievement at some point of a new type of laser that can operate at a very high specific frequency and the value of this frequency will be varied and controlled as desired by the users. Unfortunately, the moment when at last it was realized a type of laser able to approach this performance, came much later: the free electron laser (FEL) imagined since 1976. Studying the phenomenon of the reversed-brehmsstrahlung, Gudzenko and Shelepin realized that the braking radiation within a thermonuclear plasma could be collected by a laser beam capable of penetrating the thermonuclear environment. Although their theoretical prediction was correct, in 1965 they were not able to provide a laser with a specific frequency being much higher than the frequency of the thermonuclear plasma, in that case the plasma does act as an impenetrable environment for the laser, reflecting it. If, however, the laser beam could penetrate and run axially through the thermonuclear plasma, by applying the reverse-brehmsstrahlung effect, the laser fascicle would collect the braking radiation preventing it to expand into the reactor walls. It should open the way for achieving the controlled nuclear fusion, knowing that one of the major impediments to achieving this goal is the braking radiation effect, overheating the walls of the thermonuclear installation, releasing a tremendous energy from the thermonuclear environment. Rediscovering now that original idea of Shelepin and Gudzenko, and adapting it to the modern technology- could bring us the required technological solution to achieve the controlled thermonuclear fusion.
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