TITLE

Method for neutral spectra analysis taking ripple-trapped particle losses into account

AUTHOR(S)
Dnestrovskij, A.Yu.; Bengtson, Roger D.; Ouroua, A.; Karzhavin, Yuri
PUB. DATE
January 1995
SOURCE
Review of Scientific Instruments;Jan1995, Vol. 66 Issue 1, p363
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Proposes an analysis technique of charge exchange neutral spectra to obtain ion temperatures of a tokamak plasma. Modeling of the deviation of ion distribution; Analysis code used to analyze active charge exchange data.
ACCESSION #
4341682

 

Related Articles

  • Extraction of poloidal velocity from charge exchange recombination spectroscopy measurements. Solomon, W. M.; Burrell, K. H.; Gohil, P.; Groebner, R. J.; Baylor, L. R. // Review of Scientific Instruments;Oct2004 Part I & II, Vol. 75 Issue 10, p3481 

    An approach has been implemented on the DIII-D tokamak to allow the correct determination of the plasma poloidal velocity from charge exchange spectroscopy measurements. Unlike usual techniques, the need for detailed atomic physics calculations to properly interpret the results is alleviated....

  • Neutral beam diagnostics for the HT-7 tokamak. Hu, L. Q.; Wan, B. N.; Hu, C. D.; Liu, B. H.; Wu, Z. W.; Huang, J.; Rowan, William L.; Huang, H.; Gentle, K. // Review of Scientific Instruments;Oct2004 Part I & II, Vol. 75 Issue 10, p3496 

    A diagnostic neutral beam will be added to the diagnostic set so that charge-exchange recombination spectroscopy (CXRS) can be used to acquire ion temperature and rotation, and to study the role of the ion thermal transport, the radial electric field, and turbulence in the high performance HT-7...

  • New understanding of poloidal rotation measurements in a Tokamak plasma. Bell, R. E.; Synakowski, E. J. // AIP Conference Proceedings;2000, Vol. 547 Issue 1, p39 

    Significant atomic physics corrections to the measured poloidal velocity using charge exchange spectroscopy have been neglected when interpreting impurity poloidal velocity. In the presence of a magnetic field, the gyro motion of the impurity ion along with the finite lifetime of the observed...

  • The NSTX fast-ion D-alpha diagnostic. Podestà, M.; Heidbrink, W. W.; Bell, R. E.; Feder, R. // Review of Scientific Instruments;Oct2008, Vol. 79 Issue 10, p10E521 

    A new diagnostic, aimed at energy-resolved measurements of the spatial and temporal dynamics of fast ions in NSTX plasmas, is described. It is based on active charge-exchange recombination spectroscopy. The fast-ion signal is inferred from light emitted in the wavelength range of the Dα line...

  • On comparison of spectroscopically deduced central ion temperatures and plasma rotation at JET. Danielsson, M.; von Hellermann, M. G.; Källne, E.; Mandl, W.; Morsi, H. W.; Summers, H. P.; Zastrow, K.-D. // Review of Scientific Instruments;Apr92, Vol. 63 Issue 4, p2241 

    It is shown that a significant increase in the consistency of charge exchange spectroscopy and xray spectroscopy data for central ion temperature and plasma rotation is obtained when allowance is made for the following: (i) The charge exchange cross-section dependence on the impact energy of the...

  • Wide-view charge exchange recombination spectroscopy diagnostic for Alcator C-Mod. Rowan, W. L.; Bespamyatnov, I. O.; Granetz, R. S. // Review of Scientific Instruments;Oct2008, Vol. 79 Issue 10, p10F529 

    This diagnostic measures temperature, density, and rotation for the fully stripped boron ion between the pedestal top and the plasma core with resolution consistent with the profile gradients. The diagnostic neutral beam used for the measurements generates a 50 keV, 6 A hydrogen beam. The...

  • Modeling of passive charge exchange emission in The Joint European Torus (abstract). Tunklev, M.; Breger, P.; Hellermann, M.v.; Konig, R. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p933 

    Investigates passive charge exchange between neutral deuterium entering the plasma from the walls and ionized light impurities in a Tokamak Fusion Plasma. Comparison between the synthetic spectra and experimental data; Detection of core light impurities; Detection of signal from active charge...

  • Wavelength calibration of the charge exchange recombination spectroscopy system on the DIII-D... Gohil, P.; Burrell, K.H.; Groebner, R.J.; Holtrop, K.; Kaplan, D.H.; Monier-Garbet, P. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p878 

    Conducts a wavelength calibration of all the detectors on the charge exchange recombination (CER) spectroscopy system after every plasma discharge on the DIII-D tokamak. Assembly of the CER system; Control logic; Calibration spectra; Wavelength analysis; Examination of...

  • Interaction of impurity ions with a weakly non-Maxwellian simple hydrogenic plasma. Terry, William K. // Physics of Fluids B: Plasma Physics;Aug90, Vol. 2 Issue 8, p1944 

    The average acceleration of an ensemble of ‘‘test particles’’ in a plasma is called the ‘‘dynamical friction’’; the average rate at which their velocity vectors spread out in velocity space is expressed in a velocity-space diffusion-rate...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics