Energy resolved soft x-ray imaging using a charge coupled device camera for long pulse discharges in the Large Helical Device | Zendy

C. Suzuki | Zendy; K. Ida | Zendy; T. Kobuchi | Zendy; M. Yoshinuma | Zendy

Open Access

Energy resolved soft x-ray imaging using a charge coupled device camera for long pulse discharges in the Large Helical Device

Author(s) -

C. Suzuki,

K. Ida,

T. Kobuchi,

M. Yoshinuma

Publication year - 2008

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.2953676

Subject(s) - photon energy , large helical device , photon , optics , range (aeronautics) , physics , materials science , atomic physics , beryllium , pulse (music) , electron , charge coupled device , plasma , detector , nuclear physics , composite material , quantum mechanics

Energy resolved soft x-ray imaging system using a charge coupled device camera and a multifilter disk has recently been installed to the Large Helical Device for the measurements in the long pulse discharges. Eight images with different cutoff energies are measured sequentially during a single discharge by rotating a filter disk mounting eight beryllium filters with different thicknesses. A tangential line-integrated profile for a specific photon energy range can be obtained by taking intensity difference between two images measured with a filter pair of adjacent thicknesses. The typical photon energy corresponding to each difference ranges from 1.9 to 4.8 keV with the bandwidth of 2?3 keV. In the initial results, the difference in the line-integrated soft x-ray profile by the energy range has been clearly observed. This diagnostic method can possibly be applied to the observation of the dependence of two dimensional soft x-ray profile on photon energy range especially if local non-Maxwellian component appears in electron energy distribution function

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research