Effects of Relativistic Frequency Down-Shift and Optical Thickness on Measurements of Electron Temperature Profile from Electron Cyclotron Emission in Medium Temperature Tokamak Plasmas

1998 ◽  
Vol 67 (9) ◽  
pp. 3090-3099 ◽  
Author(s):  
Masayasu Sato ◽  
Nobuaki Isei ◽  
Shinichi Ishida ◽  
Akihiko Isayama
Keyword(s):  
Electron Temperature ◽  
Temperature Profile ◽  
Optical Thickness ◽  
Electron Cyclotron ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Emission ◽  
Medium Temperature ◽  
Cyclotron Emission

Optical thickness corrections to ECE measurement of electron temperature in IR-T1 tokamak

2012 ◽  
Vol 79 (3) ◽  
pp. 311-314
Author(s):  
MONA AHMADI ◽  
PEJMAN KHORSHID ◽  
OMID JALILI
Keyword(s):  
Electron Temperature ◽  
Temperature Profile ◽  
Optical Thickness ◽  
Plasma Column ◽  
Second Harmonic ◽  
Radiation Temperature ◽  
Electron Cyclotron Emission ◽  
Absorption Effect ◽  
The Core ◽  
Cyclotron Emission

AbstractThe Electron Cyclotron Emission (ECE) radiation has been investigated, passing through plasma column with concerning absorption effect on the IR-T1 tokamak. The intensity of second harmonic X-mode is used to investigate changes in electron temperature profile. The results show that radiation temperature (Trad) detected outside the plasma column is less than the electron temperature (Te) in the core. The radiation temperature can be directly interpreted as Te to about 3–10% reduction. This implies that optical thickness and electron density effects are more considerable at lower temperatures.

Electron cyclotron emission imaging in tokamak plasmas

2010 ◽  
Vol 49 (19) ◽  
pp. E20 ◽  
Author(s):  
Tobin Munsat ◽  
Calvin W. Domier ◽  
Xiangyu Kong ◽  
Tianran Liang ◽  
Neville C. Luhmann, Jr. ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Emission ◽  
Cyclotron Emission ◽  
Electron Cyclotron Emission Imaging
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