@techreport{oai:nifs-repository.repo.nii.ac.jp:00009943,
 author = {"Minami,  T. and Fujisawa,  A. and Iguchi,  H. and Yokoyama,  M. and Murakami,  S. and Liang,  Y. and Ida,  K. and Toi,  K. and Yoshimura,  Y. and Isobe,  M. and Suzuki,  C. and Nishimura,  S. and Nomura,  I. and Yoshinuma,  M. and Shimizu,  A. and Takahashi,  C. and Okamura,  S. and Matsuoka,  K. and CHS, Group"},
 month = {Oct},
 note = {"We report the recent progress of the study on neoclassical internal transport barrier (N-ITB) on Compact Helical System experiment.  N-ITB has been observed for EC heated NBI plasma.  The improved confinement region for electrons is expanded compared to that of the previous N-ITB plasma heated by only ECH.  Moreover, the ion temperature is found to be increased simultaneously by about two to three times (T_i(0)~400-500eV) with steep gradient region at rho~0.6.  From the measurement of the averaged peak energy intensity using the soft X-ray CCD camera it is confirmed that the impurity confinement is also improved with N-ITB.  The radial electric field is observed to bifurcate into electron root (E_r~15kV/m) and rather large electric field shear (dE_r/dr~300kV/m^2) is produced in the layer between ion and electron root."},
 title = {Increased Understanding of Neoclassical Internal Transport Barrier on CHS},
 year = {2002}
}