24/10/12  ( Revised on June 2013)
 L.I.Malysheva Version of the ILC BDS for low energy (125 GeV)


1)Original lattice L*=3.51m  (D0 = 3.51m  D1B = 3.04m) is rematched to the new IP parameters.
Higher order  aberrations tuning was performed by R. Thomas MAPCLASS code.  
It gives roughly up to 11% of Sigma_y growth for non-monochromatic beam.
 Use 
    ffs_351LD0_304D1B_newIP.madx and
    file k_ffs_351_bx13_by41_newIP.madx
 
 2) Bends are decimated for the low energy options:only one 2.4m bending magnet for the 12m sections
 Use 
    ffs_351LD0_304D1B_HB.madx
    and k_ffs_351_bx13_by41_newIP.madx. Corrected up to 5th order.

3) Final doublet is replaced by half-length QDO and QF1.
Rematched to new IP parameters. Higher order effects are corrected up to  4th order.
(19% of sigma_y growth)

 Use 
    ffs_351LD0_304D1B_HalfQ.madx and
     kff_4st-order_halfQ.madx"

4)The bends are replaced by drifts and bends as in version2,
 final doublet is replaced by half-length QD0/QF1 as in version3.
 Use 
    LM_half_bend_HalfQ.madx and 
    kff_4st-order_HD+HQ.madx   !Good for up to 4th order correction