Array of neutral particle analyzers at DIII-D

Carolipio, E. M.; Heidbrink, W. W.
January 1997
Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p304
Academic Journal
Describes the installation of four compact, energy-resolving analyzers on the DIII-D tokamak. Description of the instrument; Ability of the analyzers to make passive measurements; Charge-exchange measurements.


Related Articles

  • Design and calibration of a fast-time resolution charge exchange analyzer. Scime, Earl; Hokin, Samuel // Review of Scientific Instruments;Oct92, Vol. 63 Issue 10, p4527 

    A five channel, fast time resolution, scanning charge exchange analyzer has been developed for the Madison Symmetric Torus (MST). The analyzer consists of an iron vacuum vessel, a gas stripping cell, an electrostatic bending field, and five continuous electron multiplier detectors. The incident...

  • The DIII-D E||B charge exchange diagnostic. Heidbrink, W. W. // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1679 

    One of the neutral-particle spectrometers used on the Doublet III tokamak has been improved and modified for use as an active charge exchange diagnostic on the DIII-D tokamak. The spectrometer employs a He stripping cell, parallel E and B analyzer fields, and a microchannelplate detector with 60...

  • Iron concentration measurements on TFTR using charge exchange excited lines of helium-like iron in the 200–700 Ã… region. Stratton, B. C.; Fonck, R. J.; Johnson, D. W.; Park, H.; Ramsey, A. T.; Synakowski, E. J.; Timberlake, J. // Review of Scientific Instruments;Oct90, Vol. 61 Issue 10, p3113 

    Charge exchange excited lines of Fe[sup 23+] in the EUV region have been observed on the TFTR tokamak. These lines are emitted by Δn = l transitions between levels with n = 6-10 following charge exchange recombination of He-like iron ions (Fe[sup 24+]) with deuterium atoms injected by...

  • The unfolding of multichord Doppler spectrometry. Conway, N.J.; Carolan, P.G.; Tournianski, M.R. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p934 

    Describes the uses of a 20-chord Doppler spectrometer on the START spherical tokamak to record charge-exchange recombination spectra. Presence of 'passive' radiation mostly from near the plasma edge; Difficult unfolding problems presented by wide neutral beam together with the blending of the...

  • Initial results from a charge exchange q diagnostic on TEXT-U. Valanju, P.M.; Duraiappah, L.; Bengtson, Roger D.; Karzhavin, Y.; Nikitin, A. // Review of Scientific Instruments;Jan1995, Vol. 66 Issue 1, p369 

    Presents initial results from a new q diagnostic for charge exchange reaction in the Texas Experimental Tokamak Upgrade (TEXT-U) project. Basis of the method on using a torroidal array of detectors to determine the plane in which beam-injected neutrals are emitted after two charge exchange...

  • Atomic physics effects on tokamak edge drift-tearing modes. Hahm, T. S. // Physics of Fluids B: Plasma Physics;Sep93, Vol. 5 Issue 9, p3246 

    The effects of ionization and charge exchange on the linear stability of drift-tearing modes are analytically investigated. In particular, the linear instability threshold ΔTh, produced by ion sound wave coupling [Phys. Rev. Lett. 40, 1500 (1978)] is modified. In the strongly collisional...

  • Charge exchange recombination spectroscopy on the JFT-2M tokamak. Ogawa, Hiroaki; Miura, Yukitoshi; Kasai, Satoshi // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1506 

    Charge exchange recombination spectroscopy (CXRS) was used to measure the ion temperature, the toroidal rotation velocity, and the time evolution of fully stripped carbon ions during neutral beam heating in JFT-2M. The ion temperature measured by the CXRS was in good agreement with that measured...

  • Neutral probe beam q-profile measurements in PDX and PBX-M. Kugel, H. W.; Gammel, G. M.; Kaita, R.; Reusch, M. F.; Roberts, D. W. // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1635 

    Using the fast ion diagnostic experiment technique, a neutral probe beam (NPB) can be aimed to inject tangent to a magnetic surface. The resultant ion orbit shifts, due to conservation of canonical toroidal angular momentum, can be measured with a multi-sight-line charge exchange analyzer to...

  • Measurements of NBI and ion cyclotron range of frequency power deposition profiles using charge exchange spectroscopy. Ozaki, T.; Kadota, K.; Ogawa, Y.; Fujita, J. // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1503 

    Power deposition profiles of a heating neutral beam and/or an ion cyclotron range of frequency (ICRF) heating have been measured on the JIPP T-IIU tokamak. The deposition is obtained from the rise time of the ion temperature, which is measured from the Doppler broadening of C VI emission...


Read the Article


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

Try another library?
Sign out of this library

Other Topics