  Nonlinear optics is a promising idea potentially opening the path towards
achieving super high beam intensities in circular accelerators. Creation of a
tune spread reaching 50% of the betatron tune would provide strong Landau
damping and make the beam immune to instabilities. Recent theoretical work has
identified a possible way to implement stable nonlinear optics by incorporating
nonlinear focusing elements into a specially designed machine lattice. In this
report we propose the design of a test accelerator for a proof-of-principle
experiment. We discuss possible studies at the machine, requirements on the
optics stability and sensitivity to imperfections.
