The OXB double mode conversion process in over dense plasma

2^nd International Conference on Atomic and Nuclear Physics

November 08-09, 2017 | Las Vegas, USA

S Adlparvar, S Mirabootalebi, S M Sadat Kiai and L Rajaee

Islamic Azad University North Tehran Branch, Iran
Nuclear Science and Technology Research Institute (NSTR), Iran
University of Qom, Iran

Posters & Accepted Abstracts: J Astrophys Aerospace Technol

Abstract :

Electron cyclotron resonance heating (ECRH) in nuclear fusion devices such as tokomaks and stellarators, owing to overdense plasma is inefficient. This inefficiency is due to reflections of the waves at the so-called wave cut-offs. A two-step linear conversion process from ordinary mode (O mode) into extraordinary mode (X mode) and finally to slow electrostatic electron Bernstein wave (EBW), (OXB), can overcome this inefficiency and eliminate any density limits. In this article, we examine the transmission coefficient of O-X mode conversion for the optimal and density fluctuated launch conditions with parameters corresponding to the Wendelstein 7-X (W7-X) stellarators.

Biography :

S Adlparvar is a PhD candidate in Atomic Physics in Azad University. She has research experience on nuclear fusion with dense plasma focus device and Paul ion trap. She is also involved in teaching physics to under graduate students.