1.
Rev Sci Instrum
; 92(3): 033539, 2021 Mar 01.
Article
in English
| MEDLINE
| ID: mdl-33820088
ABSTRACT
This article considers a four-frequency microwave Doppler backscattering (DBS) system in the compact spherical tokamak Globus-M. The hardware was adequate for the purposes of studying the peripheral plasma in the tokamak. The multichannel DBS system is based on duplication of a dual homodyne detection circuit for four incident Ka-band frequencies. The ray tracing results for a spherical torus are described, and specific requirements for the antenna tilt adjustment are defined. Some new experimental results are given for using DBS diagnostics on the Globus-M tokamak in order to illustrate its efficiency.
2.
Vestn Khir Im I I Grek
; 144(3): 44-5, 1990 Mar.
Article
in Russian
| MEDLINE
| ID: mdl-2169116