Effect of electron magnetic trapping in a plasma immersion ion implantation system K. G. Kostov, M. A. Algatti, E. J.D.M. Pillaca, M. E. Kayama, R. P. Mota and R. Y. Honda Eur. Phys. J. D, 54 2 (2009) 205-209 Published online: 06 February 2009 DOI: 10.1140/epjd/e2009-00036-6