Beambeam Tune scans
Lattice
~dlr/bmad/lat/hibetainj_20040628_v01.lat_layout_symp_map
(details)
Scan 11-23-04, Qx = 0.515->0.533, Qy = 0.57 -> 0.61, Qz=-0.089
Equilibrate strong beam, pretzel on, lrbbi off, 1.5mA
Lattice
~dlr/bmad/lat/hibetavert_20040702.lat_layout_symp_map
(details)
Scan 02-07-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.62, Qz=-0.057
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, 9X4, 2.5ma.
Lattice
~dlr/bmad/lat/HEP_20040623_v01.lat_layout_symp_map
(details)
Scan 26-06-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.62, Qz=-0.089
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, 9X4, 2ma.
Lattice
~dlr/bmad_allocate2/bmad/lat/low_emitt_ew_sym_20040503.lat_layout_symp_map
(details)
Scan 21-06-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.61, Qz=-0.05
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 2.5ma.
Lattice
~dlr/bmad_allocate2/bmad/lat/low_emitt_ew_sym_20040503_o2.lat_layout_symp_map
(details)
Scan 14-06-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.61, Qz=-0.089
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 2ma. Second order wigglers.
Lattice
~dlr/bmad_allocate2/bmad/lat/low_emitt_20040212_v7.lat_layout_symp_map
(details)
Scan 31-03-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.61, Qz=-0.089
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 2ma
Lattice
~dlr/bmad_allocate2/bmad/lat/low_emitt_20040212_v2.lat_layout_symp_map
(details)
Scan 23-02-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.61, Qz=-0.05
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 3ma
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_12wig_20040202.lat_and_layout_symp_map
(details)
Scan 26-03-04, Qx = 0.515->0.555, Qy = 0.61 -> 0.65, Qz=-0.05
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 2ma
Scan 10-02-04, Qx = 0.515->0.555, Qy = 0.57 -> 0.61, Qz=-0.05
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, 2ma
Scan 06-02-04, Qx = 0.52->0.54, Qy = 0.57 -> 0.6
Quadrupoles and bends symplectic, coupling_sb=1%, wb=1%, pretzel, nolrbbi, Qz=-0.089, 2ma
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_6wig_lum_20030915_v7.lat_and_layout_symp_map
(details)
Scan 04-02-04, Qx = 0.52->0.54, Qy = 0.57 -> 0.6
Quadrupoles and bends symplectic
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_6wig_lum_20030915_v4.lat_and_layout_symp_map
(details)
Scan 31-1-04, Qx = 0.52->0.54, Qy = 0.57 -> 0.6
Quadrupoles and bends symplectic, beta*v=18mm, beta*x=1m theta*=2.8
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_6wig_lum_20030915_v7.lat_and_layout_symp_map
(details)
Scan 17-1-04, Qx = 0.515->0.535, Qy=0.57 ->0.61
Scan 15-1-04, Qx = 0.51->0.53, Qy=0.57 ->0.59
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_6wig_lum_20030915_v4.lat_and_layout_symp_map
(details)
Scan 21-12-03, Qx = 0.526->0.546, Qy=0.57 ->0.61
Scan 18-12-03, Qx = 0.51 ->0.54, Qy=0.57->0.62
---------------------------------------------------------------------------
Lattice
~dlr/bmad_allocate2/bmad/lat/bmad_6wig_lum_20030915_v3.lat_and_layout (details)
Scan initialization
- Lrbbi turned off. The tunes are set after pretzel and vert are closed with
beambeam at IP off and
then closure is checked. Also, a bug that displaced beams at the IP is fixed.
_and_layout - includes real physical apertures. Except for lowest band at
lowest horizontal tune, no particles are lost.
| | Horizontal | Vertical |
|---|
| Tune lower left | 0.51 | 0.57 |
| Tune upper right | 0.58 | 0.63 |
| Tune step | 0.002 | 0.002 |
| Synchrotron tune | -0.091515 |
| Number of particles | 200 |
| Number of turns | 10000 |
| Particle | positrons |
| Train | 1 |
| Car | 1 |
| Number of trains | 9 |
| Number of cars | 4 |
| Bunch current | 3mA |
| Lrbbi | true |
| Beambeam | true |
| Slices | 5 |
| Wiggler | 3rd order taylor |
|
|
Lattice
~dlr/bmad_devel/6wigs/bmad_6wig_lum_20030915_v1.lat (details)
Scan initialization
Same as previous scan with lrbbi turned off. But the tunes
are computed:
- after pretzel and vert are closed
- beambeam at ip is turned off
| | Horizontal | Vertical |
|---|
| Tune lower left | 0.52 | 0.58 |
| Tune upper right | 0.57 | 0.64 |
| Tune step | 0.002 | 0.002 |
| Synchrotron tune | -0.091515 |
| Number of particles | 200 |
| Number of turns | 5000 |
| Particle | positrons |
| Train | 1 |
| Car | 1 |
| Number of trains | 9 |
| Number of cars | 4 |
| Bunch current | 1mA |
| Lrbbi | false |
| Beambeam | true |
| Slices | 5 |
| Wiggler | bmad_standard |
|
|
Lattice
~dlr/bmad_devel/6wigs/bmad_6wig_lum_20030915_v1.lat (details)
Scan initialization
| | Horizontal | Vertical |
|---|
| Tune lower left | 0.52 | 0.58 |
| Tune upper right | 0.57 | 0.64 |
| Tune step | 0.002 | 0.002 |
| Synchrotron tune | -0.091515 |
| Number of particles | 200 |
| Number of turns | 5000 |
| Particle | positrons |
| Train | 1 |
| Car | 1 |
| Number of trains | 9 |
| Number of cars | 4 |
| Bunch current | 1mA |
| Lrbbi | false |
| Beambeam | true |
| Slices | 5 |
| Wiggler | bmad_standard |
|
|
Lattice
~dlr/bmad_devel/6wigs/bmad_6wig_lum_20030915_v1.lat (details)
Scan initialization
| | Horizontal | Vertical |
|---|
| Tune lower left | 0.51 | 0.64 |
| Tune upper right | 0.55 | 0.70 |
| Tune step | 0.002 | 0.002 |
| Synchrotron tune | -0.1 |
| Number of particles | 200 |
| Number of turns | 5000 |
| Particle | positrons |
| Train | 1 |
| Car | 1 |
| Number of trains | 9 |
| Number of cars | 4 |
| Bunch current | 1mA |
| Lrbbi | false |
| Beambeam | true |
| Slices | 5 |
| Wiggler | bmad_standard |
|
|
Lattice
~dlr/bmad_devel/6wigs/bmad_6wig_lum_20030915_v1.lat (details)
Scan initialization
| | Horizontal | Vertical |
|---|
| Tune lower left | 0.52 | 0.58 |
| Tune upper right | 0.57 | 0.64 |
| Tune step | 0.002 | 0.002 |
| Synchrotron tune | -0.1 |
| Number of particles | 200 |
| Number of turns | 5000 |
| Particle | positrons |
| Train | 1 |
| Car | 1 |
| Number of trains | 9 |
| Number of cars | 4 |
| Bunch current | 1mA |
| Lrbbi | true |
| Beambeam | true |
| Slices | 5 |
| Wiggler | bmad_standard |
|
|
