Tune scans on new sextupole distribution developed by Weiming Guo for cta_2085mev_20081107.lat.
First consider a tune scan of the lattice with standard sextupole distribution:
Introduce sextupole errors at sigma = 0.01*1.2, the same amplitude as in other sextupole error simulations.
Now look at Weiming's sextupole distribution via tune scan:
Again introduce sextupole errors at 0.01*1.2: