1. M. Biagini, S. Guiducci ECLOUD WG webex meeting December 15, 2009
SB2009 lattice update
M. Biagini, S. Guiducci
ECLOUD WG webex meeting
December 15, 2009
12/15/09 ECLOUD WG
Global Design Effort

2. DSB3 Lattice
The lattice presented at LCWS09, Albuquerque, has been posted on the Cornell wiki site: - Damping_Rings_Parameters_and_Lat
With respect to the LCWS09 version the tunes have been changed to improve the dynamic aperture.
The lattice is still in a preliminary stage of development and requires further work on dynamic aperture optimization
Based on previous experience, we are confident that by proper tuning of phase advances and the sextupole distribution, an adequate dynamic aperture for the positron injected emittance can be achieved.
12/15/09 ECLOUD WG

3. DSB Lattice 3.2 Km
12/15/09 ECLOUD WG

4. RF and Wiggler straight section
12/15/09 ECLOUD WG

5. Injection Extraction straight section
12/15/09 ECLOUD WG

6. DR Parameters
12/15/09 ECLOUD WG

7. Magnet counts DSB3 (3.2km) Arc dipole length 2.7 m
Arc dipole field (2 types)
0.26/0.36 T
Number of arc dipoles
128
Chicane dipole field
0.27 T
Number of 1 m dipoles (in chicanes) 48
Total number of quadrupoles
494
Quadrupole length m
Maximum quadrupole gradient
17 T/m
Total number of sextupoles
192
Maximum sextupole gradient
150 T/m2
12/15/09 ECLOUD WG