Ion beam transport limits

E. P. Lee, T. J. Fessenden, and L. J. Laslett, “Transportable Charge in a Periodic Alternating Gradient System,” IEEE Transactions on Nuclear Science NS-32 No. 5, (1998) 2489

S. M Lund and S. R. Chawla, “Space-charge transport limits of ion beams in periodic quadrupole focusing channels” Nucl. Inst. & Meth. A, 561 (2006) 203