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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Radiation transport modeling for the interpretation of electron cy
 clotron emission at ASDEX Upgrade
DTSTART:20170327T103000
DTEND:20170327T113000
DTSTAMP:20260509T054142Z
UID:f42a33d7fbf2efafe82b73dc6cad3471d76501f06841b71b58a010dd
CATEGORIES:Conferences - Seminars
DESCRIPTION:S. Denk\, Max Planck Institute for Plasma Physics\, Garching &
  Physiks Dept. Univ. Münich\, D\nThe electron cyclotron emission (ECE) di
 agnostic is a well established and robust instrument for the localized mea
 surement of the electron temperature Te. Because of the relativistic massi
 ncrease and the Doppler-shift\, identifying the measured radiation tempera
 ture (Trad) with Te at the cold resonance position is not always appropria
 te. This applies for example to measurements with low optical depth\, weak
  absorption near the cold resonance position\, or oblique viewing angles. 
 In such cases an electron cyclotron radiation transport forward model (ECF
 M) is required for the interpretation of the measurements. At ASDEX Upgrad
 e an ECFM is employed in the routine analysis of the profile radiometer me
 asurements.\n \nIn this talk the radiation transport model will be introd
 uced and several applications of the model will be demonstrated: (i) Infer
 ring Te from Trad measurements with weak absorption near the cold resonanc
 e in the presence of large Te gradients (plasma edge and core). (ii) Cross
  calibration of ECE diagnostics. (iii) Determination of the measurement po
 sition of oblique ECE diagnostics. (iv) Validation of Fokker-Planck calcul
 ated distribution functions via the comparison of synthetic ECE spectra wi
 th experimental observations.\n 
LOCATION:PPB019
STATUS:CONFIRMED
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