bmad_fixq0_asol_4pair_v7.lat

September 16, 2005 Lattice: /nfs/cesr/user/dlr/lat/bmad_fixq0_asol_4pair_v7.lat

CLEO solenoid is compensated with sc_sk_q01, sc_sk_q02, anti-solenoid and sk_q02 so that all 4 cbar at IP are zero. (4 pair). Q00 is fixed at 4.5. Beam energy=1.885

• linear lattice constraints
• non linear lattice constraints

• lattice file
• Optical parameters and orbits
  • table
  • Lattice gif

  • Parasitic crossing parameters
    • Luminosity pretzel - pc parameters , b_param

  • Dynamic aperture
    082905 and initialization energies 0.0 0.003 0.006, Qx=0.518,Qy=0.584, Qz=-0.089. Lattice is bmad_fixq0_asol_4pair.lat, different sextupoles?

  • Parameters for beam-beam simulation including radiation integrals, damping decrement, etc.
  • Closed orbit output
  • c12_c22 in IR
  • Single beam size (tracking 500k Turns last 50k turns)

  Single particle scans

  • 090705 and initialization , fs=-0.089, positrons, nolrbbi, no beambeam_ip, lat_and_layout (including apertures), bmad_fixq0_asol_4pair_v6.lat (v6 instead of v7)

  Luminosity vs current

  • 091505 and initialization qx=0.531, 0.588, qz=-0.089
  • 092205 and initialization qx=0.523, 0.584, qz=-0.089, which give best luminosity according to tune scan, 091705

  Luminosity tune scan

  • 091705 and initialization qz=-0.089

  Energy dependence of beta

  • dbeta/d delta E positrons , electrons

  Energy dependence of coupling