ZGOUBI USERS' GUIDE - HEP

106 4 DESCRIPTION OF THE AVAILABLE PROCEDURES§b§gPOISSON:Read magnetic field data from POISSON outputThis keyword allows reading a field § profile from POISSON output. Let FNAME be the name of this output file¡(normally, FNAME = outpoi.lis); the data are read following the FORTRAN statements hereunderI = 011 CONTINUEI = I + 1READ(LUN,101,ERR=10,END=10) K, K, K, R, X(I), R, R, B(I)101 FORMAT(I1, I3, I4, E15.6, 2F11.5, 2F12.3)GOTO 1110 CONTINUE...where X(I) is the longitudinal coordinate, and B(I) is the Z component of the field at a node (I) of the mesh. K’s and R’sare dummy variables appearing in the POISSON output file outpoi.lis but not used here."kg ¡ b From this field profile, a 2-D median plane map is built up, with a rectangular and uniform mesh; mid-plane symmetry isassumed. The field at each node of the map is , independent of (i.e., the distribution is uniform in thedirection).For the rest, POISSON works in a way similar to CARTEMES.