Figure 1. The ContorPlot for Eq.(2) and HamiltonianFieldPlot also GradientFieldPlot show in Figure for defocusing quadrupole with a2 = 0 also a = 500 µm, b = 700 µm and n0;b = 1011 particles

From

Effect of Space Charge Rotation with Kapchinskiy-Vladimirskiy Distribution Function in Quadrapole

N. Morshedian, A. Aminzadeh, N. Abtahi, S. Atashbar Tehrani

International Journal of Physics. 2014, 2(2), 37-40 doi:10.12691/ijp-2-2-3