Magnetic Field Map

How to produce the filed map

• use program "Possion Superfish" from LANL http://laacg1.lanl.gov/laacg/services/download_sf.phtml or local copy [1]

It's a windows program and need installation, it can run with wine in linux or winXP, but not win7

see manuals for detailed help, especially for the postprocessor program SF7.EXE

• produce mesh by AUTOMESH.EXE with input from a ".am" file, output file will be ".T35" with only geometry and material
• then run POISSON.EXE with the ".T35" file which will be added with field.
• use WSFPLOT.EXE to view the ".T35" file
• then run SF7.EXE on the ".T35" file, do the field extrapolation for a line, arc or grid, the result is in a txt file "OUTSF7.TXT"

a ".TBL" filed file may be produced also which can be directly viewed by TABLPLOT.EXE

Field map files

• The Babar magnet configuration and result files from Eugene at svn database_io/halla12/solid/field/babar_from_Eugene

(note: center of solenoid is at 600cm)

• the Babar magnet files created by Zhiwen at svn database_io/halla12/solid/field/babar

(note: based on Eugene's file but moved to the center of solenoid to origin)

create field map for GEMC from possion output

solenoid_BaBar.dat