Shown in cross-section:
- 12.8 cm period
- 500-3000 eV output
- circular polarization, both left and right
- linear polarization, both vertical and horizontal
- switchable polarization
- compatible with standard ID vacuum chamber, so it can share a straight section
- open along one side for access by magnetic measurement probes
- upgraded in Fall 2009 with vanadium permendur poles for horizontal field
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