MULTICHANNEL FAR-INFRARED POLARIMETER SYSTEM ON TEXT-UPGRADE

Citation
Dl. Brower et al., MULTICHANNEL FAR-INFRARED POLARIMETER SYSTEM ON TEXT-UPGRADE, Review of scientific instruments, 68(1), 1997, pp. 419-421
Citations number
6
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
ISSN journal
00346748
Volume
68
Issue
1
Year of publication
1997
Part
2
Pages
419 - 421
Database
ISI
SICI code
0034-6748(1997)68:1<419:MFPSOT>2.0.ZU;2-O
Abstract
A far-infrared polarimeter diagnostic has been added to the UCLA multi chord heterodyne interferometer system on TEXT-Upgrade. The polarimete r utilizes the phase technique of Rice [Rev. Sci. Instrum. 63, 5002 (1 992)] in order to measure the Faraday rotation angle of the incident l aser beam upon transmission through the plasma. From these data one de rives information on the poloidal magnetic field, current density, and safety factor profiles. Due to the excellent port access and the pola rimeter/interferometer scanning capability, the Faraday rotation profi le can be measured across the entire plasma cross section. (C) 1997 Am erican Institute of Physics.