scholarly journals Ion temperature measurement techniques using fast sweeping retarding field analyzer (RFA) in strongly intermittent ASDEX Upgrade tokamak plasmas

2020 ◽  
Vol 91 (6) ◽  
pp. 063506
Author(s):  
R. Ochoukov ◽  
M. Dreval ◽  
V. Bobkov ◽  
H. Faugel ◽  
A. Herrmann ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Measurement Techniques ◽  
Tokamak Plasmas ◽  
Ion Temperature ◽  
Fast Sweeping

Ion temperature measurement of tokamak plasmas by collective Thomson scattering ofD2O laser radiation

1989 ◽  
Vol 62 (24) ◽  
pp. 2833-2836 ◽  
Author(s):  
R. Behn ◽  
D. Dicken ◽  
J. Hackmann ◽  
S. A. Salito ◽  
M. R. Siegrist ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Temperature Measurement ◽  
Thomson Scattering ◽  
Tokamak Plasmas ◽  
Ion Temperature ◽  
Collective Thomson Scattering

scholarly journals Effect on Deuteron Temperature on Iron Forbidden Line Intensities in RF-Heated Tokamak Plasmas

1988 ◽  
Vol 102 ◽  
pp. 199-202
Author(s):  
K. Sato ◽  
S. Suckewer ◽  
A. Wouters
Keyword(s):  
Temperature Measurement ◽  
Temperature Sensitive ◽  
Tokamak Plasmas ◽  
Rf Heating ◽  
Collisional Excitation ◽  
Ion Temperature ◽  
Noticeable Effect ◽  
Line Intensities ◽  
Proton Temperature ◽  
Sensitive Line

AbstractTwo line ratios, the forbidden line at 845.5 Å to the allowed line at 135.7 Å in Fe XXII and the forbidden line at 592.1 Å to the forbidden line at 1118.2 Å in Fe XIX, have been measured as ion temperature-sensitive line ratios during rf heating in the Princeton Large Torus. The results indicate that deuteron collisions in plasmas of high deuteron temperature have a noticeable effect on the intensity of the forbidden lines. Measured relative intensities are compared with values from level population calculations which include deuteron collisional excitation between the levels of the ground configuration. The agreement between the observed and calculated ratios is within 30%. A method for deuteron (or proton) temperature measurement in tokamak plasmas is discussed.1More details about this experiment can be found in Ref. 2.

Optimum pulse length of a high-power SMM laser for Tokamak ion temperature measurement

1982 ◽  
Vol 24 (10) ◽  
pp. 1325-1329 ◽  
Author(s):  
T Okada ◽  
K Kato ◽  
R Noudomi ◽  
M Muraoka ◽  
M Akazaki
Keyword(s):  
Temperature Measurement ◽  
High Power ◽  
Pulse Length ◽  
Ion Temperature

Adhesion of Rhodococcus ruber IEGM 342 to polystyrene studied using contact and non-contact temperature measurement techniques

2018 ◽  
Vol 102 (19) ◽  
pp. 8525-8536 ◽  
Author(s):  
Anastasiia V. Krivoruchko ◽  
Anastasia Yu Iziumova ◽  
Maria S. Kuyukina ◽  
Oleg A. Plekhov ◽  
Oleg B. Naimark ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Measurement Techniques ◽  
Contact Temperature ◽  
Rhodococcus Ruber

Spectroscopic system using image magnifying optics for plasma velocity and ion temperature measurement

2003 ◽  
Vol 74 (3) ◽  
pp. 2111-2114 ◽  
Author(s):  
H. Sakakita ◽  
S. Kiyama ◽  
Y. Hirano ◽  
Y. Yagi ◽  
H. Koguchi ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Plasma Velocity ◽  
Ion Temperature

Simulation of a magnetic field and ion temperature measurement in a Tokamak by Thomson scattering

1982 ◽  
Vol 24 (11) ◽  
pp. 1449-1463 ◽  
Author(s):  
M R Siegrist ◽  
M A Dupertuis ◽  
R Behn ◽  
P D Morgan
Keyword(s):  
Magnetic Field ◽  
Temperature Measurement ◽  
Thomson Scattering ◽  
Ion Temperature

Tungsten measurement on Alcator C-Mod and EBIT for future fusion reactors1This article is part of a Special Issue on the 10th International Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas.

2011 ◽  
Vol 89 (5) ◽  
pp. 591-597 ◽  
Author(s):  
Y.A. Podpaly ◽  
J.E. Rice ◽  
P. Beiersdorfer ◽  
M.L. Reinke ◽  
J. Clementson ◽  
...  
Keyword(s):  
Ion Trap ◽  
Oscillator Strengths ◽  
Continuum Emission ◽  
Tokamak Plasmas ◽  
Ion Temperature ◽  
International Colloquium ◽  
Plasma Facing Components ◽  
Laboratory Plasmas ◽  
Electron Beam Ion Trap ◽  
Theoretical Predictions

Tungsten will be an important element in nearly all future fusion reactors because of its presence in plasma facing components. This makes tungsten a good candidate for a diagnostic element for ion temperature and toroidal velocity measurement, and it makes understanding tungsten emissions important for tokamak power balance. The effect of tungsten on tokamak plasmas is investigated at the Alcator C-Mod tokamak using VUV, bolometry, and soft X-ray spectroscopy. Tungsten was present in Alcator C-Mod as a plasma facing component and through laser blow-off impurity injection. Quasi-continuum emission previously seen at other tokamaks has been identified. Theoretical predictions are presented of tungsten emission that could be expected in future Alcator C-Mod measurements. Furthermore, spectra of highly charged tungsten ions have been studied at the SuperEBIT electron beam ion trap. This emission could prove useful for spectroscopic diagnostics of future high-temperature fusion reactor plasmas.

Sign in / Sign up

Export Citation Format

Share Document