Damping Rings Lattice Evaluation Mark Palmer Cornell University January 19, 2011

Proposed Steps – Now to ALCPG11 Today: –Establish final design criteria –Verify lattice contributors Tuesday, February 8 th –Design Status WebEx –Review status of designs –Evaluate any final adjustments to design criteria Tuesday, March 8 th –Design Review WebEx –Circulate Design Summaries to full DR mailing list January 19, 2011 Damping Rings Lattice Meeting 2

ACLPG11 Lattice evaluation session as part of DR parallel sessions (March 20 or 21?) Present recommendation to ILC GDE on March 23 rd January 19, 2011 Damping Rings Lattice Meeting 3

Evaluation Criteria At TILC08, the previous lattice evaluation, we compared 4 lattices on the basis of 8 criteria: –Lattice Design and Dynamical Properties –Conventional Facilities and Layout –Magnets, Supports and Power Supplies –Vacuum System and Radiation Handling –RF System –Injection and Extraction Systems –Instrumentation and Diagnostics –Control System, Availability and Reliability Rankings of 1-5 (5 is best) for each criterion were used January 19, 2011 Damping Rings Lattice Meeting 4

ACLPG11 Evaluation for ALCPG11 should be simpler –Many items for the previous evaluation have now been locked in for both possibilities –Still have several comparisons to make: Proposed evaluation criteria: –Lattice Design and Dynamical Properties –Magnet and Power Supply Requirements –Vacuum System and Radiation Handling –RF System –Space for instrumentation and Diagnostics January 19, 2011 Damping Rings Lattice Meeting 5