Post
by yjkim » 24 May 2011, 10:42
Dear Dr. Borland,
How are you?
I guess that you are extremely busy due to many business.
Recently, JLab PEPPo (Polarized Electron for Polarized Positron Source) collaboration members
have been working for complicated spectrometor dipoles, which were used for the SLAC E166 experiments.
Recently, we borrowed the spectrometer, and we would like to use it to generate the polarized positron source with our PEPPo concept
instead of using a long undulator.
But unfortunately, their 3D fieldmaps are somewhat complicated, and they have quadrupole focusing components in the dipoles.
Therefore, we can not use a simple dipole model for the spectrometer, and
we want to know how to include the measured 3D fieldmap of the spectrometer dipoles in ELEGANT lattice file.
I also want to know how to include the measured 3D field map for a solenoid and a quadrupole.
It seems that we have to use FTABLE and MHISTORAM.
But it is not simple for us to use them.
If you upload one sample input files for FTABLE and MHISTORAM and sample 3D fieldmap files for a dipole, a solenoid, and a quadrupole,
they will be very helpful for the ELEGANT users to use them properly.
Thank you so much for your kind help!
Yujong Kim