@article{7436, author = {D. Moseev and F. Meo and S. B. Korsholm and T. Koskela and M. Albergante and O. Asunta and H. Bindslev and A. Burger and V. Furtula and M. Y. Kantor and F. Leipold and P. K. Michelsen and S.K. Nielsen and M. Salewski and O. Schmitz and M. Stejner and E. Westerhof}, title = {Comparison of measured and simulated fast ion velocity distributions in the TEXTOR tokamak}, abstract = {Here we demonstrate a comprehensive comparison of collective Thomson scattering (CTS) measurements with steady-state Monte Carlo simulations performed with the ASCOT and VENUS codes. The measurements were taken at a location on the magnetic axis as well as at an off-axis location, using two projection directions at each location. The simulations agree with the measurements on-axis, but for the off-axis geometries discrepancies are observed for both projection directions. For the near perpendicular projection direction with respect to the magnetic field, the discrepancies between measurement and simulations can be explained by uncertainty in plasma parameters. However, the discrepancies between measurement and simulations for the more parallel projection direction cannot be explained solely by uncertainties in plasma parameters. Here anomalous fast ion transport is a possible explanation for the discrepancy. }, year = {2011}, journal = {Plasma Physics and Controlled Fusion}, volume = {53}, number = {10}, pages = {105004}, month = {Oct}, isbn = {0741-3335}, doi = {10.1088/0741-3335/53/10/105004}, note = {ISI Document Delivery No.: 823VVTimes Cited: 0Cited Reference Count: 40}, language = {English}, }