Author/Authors :
Kubo، نويسنده , , H. and Sasaki، نويسنده , , A. and Moribayashi، نويسنده , , K. and Higashijima، نويسنده , , S. and Takenaga، نويسنده , , H. and Shimizu، نويسنده , , K. and Nakano، نويسنده , , T. and Whiteford، نويسنده , , A. and Sugie، نويسنده , , T.، نويسنده ,
Abstract :
In JT-60U, Xe gas has been injected into reversed shear plasmas with internal transport barriers. During these discharges, spectra from highly ionized Xe atoms have been observed in a wavelength range of 4–16 nm. The observed spectra have been analyzed by calculating theoretical spectra for Xe XXXVII–XLV 3s–3p and 3p–3d transitions with relativistic atomic structure codes, a collisional radiative model, and an impurity transport code. Several lines for Xe XLI and XLII have been newly identified. Soft X-ray emission profiles have also been analyzed, and the results showed that the Xe ions accumulated inside the internal transport barrier.
Keywords :
Spectroscopy , impurity , JT-60U , Impurity transport
