Summary:

Andy Ringwall: A first look at the 2m L* CD1 style FF final quadrupole doublet for the "Large Detector"

• The basic choices of magnet technology for the small detector work for the large detector with the exception of Q2A.  Its location in the return flux may require it to be a permanent magnet, which might limit the energy range over which the doublet could operate without needing to replace magnets.
• This is the doublet design for a 2m L* in the CD1 FF; translating this magnet group to larger z is no problem.  The new "Panta" final focus design, which involves different gradients, apertures, and sextupoles, needs to be examined.

Yuri Nosochkov: Modifications to the Skew Correction System Lattice

• By running the currently envisaged magnets more strongly, a 65 m shorter system delivers the same performance oas that used for the CD1 design
• A lattice (suggested by Panteleo Raimondi) based on a 90 degree per cell phase advance results in a system of roughly similar length.

Andrei Seryi: A first look at the Dynamic Aperture of the "Panta" Final Focus

• Andrei took a first stab at comparing the dynamic aperture of the Panta FF and the Helm (CD1) FF
• The analysis showed that Panta's system was about 200 times "better" in 5-dimensional phase space volume, but the audience cautioned that the analysis needed to be better developed because the result was dominated by particles in the "IP phase" (x and y).  The particles in the "doublet phase" (x', y') seemed to have less aperture.  Andrei will refine his analysis and speak again soon.

Tom Markiewicz, 08/14/00