2019
DOI: 10.3390/atoms7030087
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Spatial Profile of Neutral Temperature Measurement in Aditya-U Tokamak Plasmas

Abstract: The spatial profile of neutral hydrogen temperatures in Aditya-U tokamak plasma has been estimated from the spatial profile of the Hα spectral emissions measured using a high-resolution multi-track spectrometer, having a spectral resolution of 0.023 nm at a 50 μm entrance slit width. The neutral temperature estimation from the Doppler broadened spectral line was carried out after considering the Zeeman effect due to the magnetic field present in the tokamak. To accurately obtain the temperature of the neutral … Show more

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Cited by 1 publication
(2 citation statements)
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“…A high-resolution space resolved spectroscopic diagnostic [22] has been developed and installed earlier on the ADITYA and later on ADITYA-U tokamak to monitor the temporal and spatial evolution of different spectral lines for estimating ion and neutral temperatures [31,32], plasma rotation [33] and studying impurity transport [25,26]. The system consists of 1 m, f /8.7 spectrometer (AM510, Acton, USA).…”
Section: Visible Spectrometers Based Diagnostic Systemsmentioning
confidence: 99%
See 1 more Smart Citation
“…A high-resolution space resolved spectroscopic diagnostic [22] has been developed and installed earlier on the ADITYA and later on ADITYA-U tokamak to monitor the temporal and spatial evolution of different spectral lines for estimating ion and neutral temperatures [31,32], plasma rotation [33] and studying impurity transport [25,26]. The system consists of 1 m, f /8.7 spectrometer (AM510, Acton, USA).…”
Section: Visible Spectrometers Based Diagnostic Systemsmentioning
confidence: 99%
“…Neutral temperature was estimated by employing fitting technique and the spatial profile of hot components of the neutral hydrogen has been plotted in figure 9. It varies within 15 to 28 eV [31]. The charge exchange process mainly produces the hot component, which comes from the plasma core.…”
Section: Poloidal Asymmetry In Neutral Temperature Of Thementioning
confidence: 99%