Synergia CERN PS results March 16, 2005
Emittance
Postcript version, raw
data, raw data
reduced to two
samples per turn. The raw data consists of s in meters for the
first column,
horizontal normalized RMS emittance in m-rad for the second column and
vertical normalized RMS emittance in m-rad for the third column.
Normalized horizontal and vertical emittances, and their sum divided by
two from a high resolution run, using a 129 by 129 by 129 computational
grid.
Tunes
Tune Density
Postscript version
Tune histograms
Horizontal
Postscript version
Vertical
Postcript version
Tune scatter plot
Postscript version
Simulation and Analysis description
Input beam
- Gaussian in transverse dimensions
- Uniform in z
- zero delta p/p
- matched to linear lattice (without space charge)
- 1098880 particles
Space charge calculation
- 100 space charge kicks per turn
- verified that 200 space charge kicks per turn produce similar
results
- calculated on a 65x65x65 grid
- verified that 129x129x129 grid produces similar results
- finite transverse, periodic longitudinal BC's
- took a longitudinal slice of 13.7 mm
- verified that 10x larger z slice produces similar results
- total current = 8 x 0.154 A
Optics
- Q_H = 6.21, Q_V = 6.21
- real lattice (not constant focusing)
- linear maps
Tune calculations
- FFT of one sample/turn
- added 6 to resulting fractional tune
- tunes distributions for a random subsample of 8231 tracks
Last updated $Date: 2005/03/16 21:46:02 $ by J. Amundson