Document Type
Article
Publication Date
2004
DOI
10,1063/1.1783601
Publication Title
Review of Scientific Instruments
Volume
75
Issue
10
Pages
3804-3806
Abstract
The effect of the direction of the detected beam on the intensity of ECE is studied. It is found that the combined effects of the strong dependence of the conversion efficiencey of O mode at the plasma resonance on the direction of the incident wave and the partial screening of the beam waist by the MAST vessel wall, can be responsible for the weakening of ECE emission for some frequencies. The theoretical model for ECE data interpretation on MAST has been significantly improved. New features of the model are as follows: the quasioptical treatment of the receiving antenna, interference, polarization and screening effects of the vacuum window and collisional damping of EBWs in the peripheral plasma.
Original Publication Citation
Preinhaelter, J., Urban, J., Pavlo, P., Shevchenko, V., Valovic, M., Vahala, L., & Vahala, G. (2004). Influence of antenna aiming on ECE in MAST. Review of Scientific Instruments, 75(10), 3804-3806. doi: 10.1063/1.1783601
Repository Citation
Preinhaelter, Josef; Urban, Jakub; Pavlo, Pavol; Shevchenko, Vladimir; Valovič, Martin; Vahala, Linda L.; and Vahala, George, "Influence of Antenna Aiming on ECE in MAST" (2004). Electrical & Computer Engineering Faculty Publications. 30.
https://digitalcommons.odu.edu/ece_fac_pubs/30