Various optical solutions with differing momentum compactions can be utilized in this design. In the following, we discuss the "nominal" operating configuration with an energy recovery arc M₅₆ of 0.19 cm. The first figure below presents beam envelopes and dispersions through the transport system, from injection through the cryomodule during energy recovery. The next figure presents rms beam sizes for the design beam emittance (13 mm-mrad, rms normalized) and an rms momentum spread of 1% (corresponding to a large momentum spread "spent" beam) from wiggler through energy recovery transport. Beam envelopes, dispersion, and beam sizes are everywhere well behaved, implying that loss rates will be low and error sensitivities reasonable.

Last modified: 10 March 1997

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