THE SNAKE RING A Feasibility Study
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چکیده
In order to reduce the large transverse emittances of the positron beam, as well as the large energy spread, a radiation damping time of the order of 10 msec is required. By use of a specially designed " SNAKE "-wiggler with a field of 2 Tesla one can obta.in this short damping time at a beam energy of 100 MeV. Because of the strong bending field of the wiggler, the optics of the small model predamping ring presented here, in particular the chromaticity, is mainly determined by the edge focusing at the entrance and exit of each wiggler section. In order to get a uniform damping partition the dispersion function has to have a particular shape which defines the most important optical constraint.
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تاریخ انتشار 1984