We have encountered a mismatch in the vertical chromaticity for the BESSY II design lattice when comparing the results from elegant's twiss routine with those of other codes. Could you please help me get to the bottom of this problem? Here an overview of the obtained results (I have attached all used files):
Code: Select all
nux nuy dnux/dp dnuy/dp
Elegant 17.85 6.74 1.18 1.396
MAD-X 17.85 6.74 1.18 -1.05
PTC (exact=true) 0.85 0.74 1.18 -1.05
PTC (exact=false) 0.85 0.74 1.11 1.395
Felix Armborst
Version Info:
elegant 2019.1.1
MAD-X 5.05.02