Neutral Atom Imaging Using a Pulsed Electromagnetic Lens by Jamie Ryan Gardner

Author:Jamie Ryan Gardner
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

(6.11)

Fig. 6.8Magnetic field strength along x and y for the hexapole shown in Fig. 6.6. This is calculated for R = 2 mm and I = 1000 A. For a large region inside the hexapole, the quadratic approximation (dotted line) given by Eq. (6.10) is valid

It is worth noting that this focal length is a linear function of v ∥. This differs from the steady-state lens case, in which τ ∝ v∥−1, yielding f ∝ v∥2. A diagram depicting the focusing of a collimated disk is shown in Fig. 6.11.

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