Franzen, P., Falter, H.-D., Speth, E., Kraus, W., Bandyopadhyay, M., Encheva, A., et al. (2005). Status and plans for the development of a RF negative ion source for ITER NBI. Fusion Engineering and Design, 74, 351-357. Retrieved from http://dx.doi.org/10.1016/j.fusengdes.2005.06.178.