DESIGN OF SUPERHETERODYNE RADIOMETER AS ECE DIAGNOSTIC FOR ELECTRON-TEMPERATURE PROFILE MEASUREMENT IN SST-1

Authors
PANDYA HKB ATREY PK GOVINDARAJAN J MATTOO SK
Citation
Hkb. Pandya et al., DESIGN OF SUPERHETERODYNE RADIOMETER AS ECE DIAGNOSTIC FOR ELECTRON-TEMPERATURE PROFILE MEASUREMENT IN SST-1, Fusion engineering and design, 34-5, 1997, pp. 469-472
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Fusion engineering and design → ACNP
ISSN journal
09203796
Volume
34-5
Year of publication
1997
Pages
469 - 472
Database
ISI
SICI code
0920-3796(1997)34-5:<469:DOSRAE>2.0.ZU;2-H
Abstract
This paper presents the design of an eight-channel W band radiometer a s an electron cyclotron resonance (ECE) diagnostic to measure the elec tron temperature for phase I (B-tO = 1.5 T) operation of SST-1. A doub le-sideband (DSB) mixer cum power divider method is used to cover the full range of ECE frequencies. The noise figure, sensitivity and expec ted output signal of the radiometer are estimated and a calibration te chnique is discussed. A time resolution of 5 mu s and a spatial resolu tion of 0.6 cm for 2f(ce) = 70 GHz are achieved by this radiometer. (C ) 1997 Elsevier Science S.A.