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22-27 October 2018
Mahatma Mandir Conference Centre
Asia/Kolkata timezone
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Observations of Intrinsic Toroidal Rotation using X-Ray Crystal Spectrometer in ADITYA-U Tokamak

24 Oct 2018, 14:00
4h 45m
Mahatma Mandir Conference Centre

Mahatma Mandir Conference Centre

Gandhinagar (nearest Airport: Ahmedabad), India
Poster P4 Posters

Speaker

Ms KAJAL SHAH (PANDIT DEENDAYAL PETROLEUM UNIVERSITY)

Description

A soft X-ray Crystal spectrometer has been developed to measure toroidal rotation velocity and ion temperature in the core of ADITYA-U Tokamak [1, 2] using Doppler shift and Doppler broadening of helium like argon emission in the x-ray region respectively. The spectrometer uses cylindrically bent Si (111) crystal and two dimension CCD detector to measure resonance spectral line of Ar XVII (1S2 1S0 – 1S 2P 1P1) and satellite lines in the wavelength region of 3.94 Å-4.0 Å, viewing the plasma tangentially at an angle of 26˚ with respect to the toroidal direction in the magnetic axis. Central electron temperature is measured through line ratios and compared with other diagnostics. Neoclassical toroidal rotation has been calculated using theory and compared with observations from the experiment. The effect of variation in edge plasma parameters on the core plasma rotation has also been studied. Detailed discussion on the first results is presented in the paper.
Country or International Organization India
Paper Number EX/P4-9

Primary author

Ms KAJAL SHAH (PANDIT DEENDAYAL PETROLEUM UNIVERSITY)

Co-authors

Mr Gaurav Shukla (Pandit Deendayal Petroleum University) Ms Harshita Raj (Institute for Plasma Research) Dr Joydeep Ghosh (Institute for Plasma Research) Dr KBK Mayya (Pandit Deendayal Petroleum University) Mr Kaushal Patel (Institute for Plasma Research) Mr Kumarpalsinh Jadeja (Institute for plasma Research) Dr Malay Bikas Chowdhuri (Institute for Plasma Research) Mrs RANJANA MANCHANDA (INSTITUTE FOR PLASMA RESEARCH) Mr Rakesh Tanna (Institute For Plasma Research)

Presentation Materials

Paper