SLS storage ring optics

• ISO9B
  Low-alpha optics for production of short bunches. Used for a couple of shifts in 2009 and 2010.
• F6C
  Femto optics including chicane and modulator closed to its minimum gap. In operation since April 2006.
• F6CWO
  Femto optics including chicane and radiator with open modulator. In operation since April 2006. Since 2010 ocasionally also operated at 1.57 GeV.
• F6T
  Femto triplet quads and QLH-05 shifted 10 cm downstream. New quadrupole calibration based on effective field length instead of iron length. Operational January-April 2006.
• F4T
  Femto optics including triplet and radiator but not yet the chicane. Operational April 2004 - end 2005.
• F40
  Preliminary mode similar to D2R55 and with same tunes, but with broken lattice symmetry due to modifications on quad QLH-05. Operational during the first month of 2004.
• D2R55
  D2R reoptimized for chromaticities of +5, operational Feb.2003 - end 2004.
• D2R
  User optics for the early years providing 5nm emittance and dispersion free straights. Operated mid 2001 - Feb.2003.
• GS2
  Alternative optics based on D2R with higher vertical tune, developed by Gurnam Singh, tested July 2001 and worked quite well.
• D1
  Distributed dispersion optics for 4nm emittance, was tested in Feb.2001 and worked well, but never used again.
• D2E: precedessor of D2R, early production optics, March 2001.
• D4B
  Relaxed optics used for early commissioning, gave the first stored beam on Dec.15,2000.
• D0
  Original design optics from the SLS handbook, never worked...

Magnet calibrations

A.Streun, 16.12.2010