Fast switching magnet for heavy ion beam separation

Abstract

This paper presents the design for a switching magnet capable of deflecting 6.5 MeV/u heavy-ion beams with mass-to-charge ratio of 7 by 10 degrees. This magnet can produce variable flat-top pulses from 1 to 30 ms with rise and fall times of less than 0.5 ms at a variable duty cycle of 3–91% into a heavily inductive load. The magnet has a laminated, iron dominated, H-shaped core. Directly-cooled copper pancake coils energize the magnet. We present the magnet design considerations, including the results of extensive computer modeling. We also present the conceptual engineering design and the studies of magnet yoke fabrication.

Interposed pulsed power system for fast separation of radioactive beams

“…Responding to this problem, RadiaBeam Technologies, LLC has developed a fast switching magnet [7,8], shown in figure 2, with the parameters, provided in table 1. This design was optimized to minimize the transient time of the magnet, and to bring the requirements for the power system to the practical level while preserving the fundamental magnetic field specifications.…”