low_emitt_20040212_v2.lat

February 17, 2004 Lattice: ~dlr/bmad_allocate2/bmad/lat/low_emitt_20040212_v2.lat

12 wigglers all 2.1T. Optics and orbits based on third order symp taylor map for wigglers, pretzel on. 2 7pole and 10 8pole wigglers. Symmetric quads, seps, sexts

• lattice constraints

• lattice file
• Optical parameters and orbits
  • table
  • Lattice gif
  • Dynamic aperture gif and initialization energies 0.0 0.003 0.006, v2
  • Dynamic aperture gif and initialization energies 0.0 0.006 0.008, v2
  • Dynamic aperture gif and initialization energies 0.0 0.006 0.008, v7

• Parameters for beam-beam simulation including radiation integrals, damping decrement, etc.
• Beambeam scan and initialization 3mA/bunch, scan Qy from 0.57 to 0.61 and Qx from 0.515 to 0.57
• Beambeam scan and initialization 2mA/bunch, scan Qy from 0.57 to 0.61, and Qx from 0.515 to 0.555
• Beambeam scan and initialization 1mA/bunch, scan Qy from 0.585 to 0.64, and Qx from 0.522 to 0.572

Single beam scans

• 210304 and initialization , low_emitt_20040212_v2.lat_and_layout_symp_map, A=2.e-8, fs=-0.089
• 210304-1 and initialization , low_emitt_20040212_v3.lat_and_layout_symp_map, fs=-0.089
• 220304 and initialization , low_emitt_20040212_v4.lat_and_layout_symp_map, fs=-0.089
• 220304-1 and initialization , low_emitt_20040212_v4.lat_symp_map, fs=-0.089
• 220304-2 and initialization , low_emitt_20040212_v2.lat_symp_map, fs=-0.089
• 260304 and initialization , low_emitt_20040212_v5.lat_symp_map, fs=-0.089
• 290304 and initialization , low_emitt_20040212_v6.lat_smyp_map, fs=-0.089, Qx=0.51->0.58, Qy=0.58->0.64
• 290304-1 and initialization , low_emitt_20040212_v6.lat_smyp_map, fs=-0.089, Qx=0.51->0.58, Qy=0.53->0.61
• 310304 and initialization , low_emitt_20040212_v7.lat_smyp_map, fs=-0.089, Qx=0.51->0.58, Qy=0.53->0.61
• 310304-1 and initialization , low_emitt_20040212_v7.lat_smyp_map, A=-6e-9, fs=-0.089, Qx=0.51->0.58, Qy=0.58->0.64
• 130404 and initialization , low_emitt_20040212_v11.lat_smyp_map, fs=-0.089, Qx=0.51->0.58, Qy=0.58->0.64
• 300404 and initialization , low_emitt_20040212_v11.lat_smyp_map, optimized with synchro-beta constraint. A=(sqrt(a1)-sqrt(a0))/Volts(MeV) = 1.e-9, fs=-0.089, Qx=0.51->0.58, Qy=0.58->0.64

Luminosity vs current

• 030404 and initialization , low_emitt_20040212_v7.lat_and_layout_symp_map, fs=-0.089, 9X4
• 020404 and initialization , low_emitt_20040212_v7.lat_and_layout_symp_map, fs=-0.089, pretz, nolrbbi
• 210204-5 and initialization , low_emitt_20040212_v2.lat_and_layout_symp_map, fs=-0.05, 9X4
• 180204 and initialization , low_emitt_20040212_v2_o1.lat_and_layout_symp_map, fs=-0.089, nolrbbi, taylor_order 1
• 160204-s and initialization , low_emitt_20040212_v2.lat_and_layout_symp_map, fs=-0.089,nolrbbi
• 160204 and initialization , low_emitt_20040212_v2.lat_and_layout_symp_map, fs=-0.089, 9X4

Energy dependence of beta

• positrons v7(green) v2(white)
• pretz off v7(green) v2(white)
• electron v7(green) v2(white)

Energy dependence of coupling

• nopretz v7(green) v2(white)

Single particle scans

• 070404 and initialization , low_emitt_20040212_v7.lat_and_layout_symp_map, fs=-0.089, pretz, beambeam, 2.5mA, nolrbbi, What resonance is responsible for beam blowup at >2.25mA?, log of amplitude
• 120404-1 and initialization , low_emitt_20040212_v7.lat_and_layout_symp_map, fs=-0.089, pretz, beambeam, 2.5mA, nolrbbi, 10,000 turns, 0.5mm, 5um, 0.001