A fast-time-response extreme ultraviolet spectrometer for measurement of impurity line emissions in the Experimental Advanced Superconducting Tokamak

L Zhang, S Morita, Z Xu, Z Wu, P Zhang… - Review of Scientific …, 2015 - pubs.aip.org
A flat-field extreme ultraviolet (EUV) spectrometer working in the 20-500 Å wavelength range
with fast time response has been newly developed to measure line emissions from highly …

Edge impurity transport study in the stochastic layer of LHD and the scrape-off layer of HL-2A

M Kobayashi, S Morita, CF Dong, ZY Cui… - Nuclear …, 2013 - iopscience.iop.org
Edge impurity transport has been investigated in the stochastic layer of the Large Helical
Device (LHD) and the scrape-off layer (SOL) of the Huan Liuqi-2A (HL-2A) tokamak, as a …

Optical emission spectroscopy and collisional-radiative modeling for low temperature Ar plasmas

KB Chai, DH Kwon - Journal of Quantitative Spectroscopy and Radiative …, 2019 - Elsevier
Reliability of electron temperature and density diagnostics by an optical emission
spectroscopy and a collisional radiative modeling is investigated by being compared with a …

High spatial and temporal resolution charge exchange recombination spectroscopy on the HL-2A tokamak

YL Wei, DL Yu, L Liu, K Ida… - Review of Scientific …, 2014 - pubs.aip.org
A 32/64-channel charge exchange recombination spectroscopy (CXRS) diagnostic system
is developed on the HL-2A tokamak (R= 1.65 m, a= 0.4 m), monitoring plasma ion …

Space-resolved extreme ultraviolet spectroscopy free of high-energy neutral particle noise in wavelength range of 10–130 Å on the large helical device

X Huang, S Morita, T Oishi, M Goto… - Review of Scientific …, 2014 - pubs.aip.org
A flat-field space-resolved extreme ultraviolet (EUV) spectrometer system working in
wavelength range of 10–130 Å has been constructed in the Large Helical Device (LHD) for …

Enhancement of edge impurity transport with ECRH in the HL-2A tokamak

ZY Cui, S Morita, HY Zhou, XT Ding, P Sun… - Nuclear …, 2013 - iopscience.iop.org
Edge impurity transport is studied in electron cyclotron resonance heating (ECRH) L-mode
plasmas of the HL-2A tokamak based on space-resolved vacuum ultraviolet spectroscopy …

Gas-puff induced cold pulse propagation in ADITYA-U tokamak

T Macwan, H Raj, K Singh, S Dolui, S Patel… - Nuclear …, 2021 - iopscience.iop.org
Short bursts (∼ 1 ms) of gas, injecting∼ 10 17–10 18 molecules of hydrogen and/or
deuterium, lead to the observation of cold pulse propagation phenomenon in hydrogen …

Observation of W IV–W VII line emissions in wavelength range of 495–1475 Å in the large helical device

T Oishi, S Morita, X Huang, H Zhang, M Goto… - Physica …, 2016 - iopscience.iop.org
Vacuum ultraviolet spectra of line emissions from tungsten ions at lower ionization stages
have been measured in the large helical device (LHD) using a high-resolution 3 m normal …

Space-resolved extreme ultraviolet spectrometer system for impurity behavior research on experimental advanced superconducting Tokamak

Y Shen, X Du, W Zhang, Q Wang, Y Li, J Fu… - Nuclear Instruments and …, 2013 - Elsevier
A flat-field extreme ultraviolet (EUV) spectrometer, which covers a wavelength range of 5–
50nm, has been developed for the experimental advanced superconducting tokamak …

Study of carbon transport in the scrape-off layer of HL-2A with impurity sources located at limiter, dome, and divertor

ZY Cui, S Morita, M Kobayashi, XT Ding, XQ Ji… - Nuclear …, 2015 - iopscience.iop.org
Impurity transport in the scrape-off layer (SOL) has been studied in ohmically heated
discharges of the HL-2A tokamak based on space-resolved vacuum ultraviolet …