A planar electromagnet microwiggler for free electron lasers |
| |
Authors: | Stoner R Chen SC Bekefi G |
| |
Institution: | Dept. of Phys., MIT, Cambridge, MA; |
| |
Abstract: | The authors have designed and tested an electromagnet planar microwiggler for use in free electron lasers (FELs), constructed of current conductors wound on ferromagnetic cores. A prototype with a period of 1 cm and a gap of 0.5 cm produced a peak field on axis in excess of 4.6 kG, with a linear B/H characteristic to about 3.2 kG. The field of each half-period of the wiggler is independently tunable by adjusting the current delivered to each, thus allowing for precision tuning and/or wiggler tapering. General scaling laws are employed to predict the performance of a geometrically similar design with a period of 5 mm |
| |
Keywords: | |
|
|