Consider a system of two coaxial magnetic mirrors whose axis coincides with the z axis, being symmetrical about the plane z = 0, as shown schematically in Fig. 20. Describe semiquantitatively the motion of a charged particle in this magnetic mirror system considering that at z = 0 the particle has v_∥ = v⁰_∥ and v_⊥ = v_⊥⁰. What relation must exist between

(particle pitch angle at z = 0) for the particle to be reflected at z_m?

Figure 20

Transcribed Image Text:

Bo = B(z = 0)2, Bm = B(z 2 = ±2m)2 and ao