2010.06.07 - Quad Tilt Errors

As of the latest survey measurements, the quad tilts in the actual machine have a sigma of ~220 micro-radians. Introduce quad tilts with this sigma for both 2fam and optimized sextupole distributions, and run tune scans over the half- to 2/3-integer domain.

2fam Distribution

Quad values after errors added
Raw data from tune scan

Compare to tune scans from ideal lattice with 2fam sextupoles.

Optimized Distribution

Quad values after errors added
Raw data from tune scan

Compare to tune scans from ideal lattice with optimized sextupoles. Note that the tune scans performed during machine studies covered the region ~[0.538,0.565]x[0.577,0.655]. See elog entry here.



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