ZGOUBI USERS' GUIDE - HEP

Keywords and input data formatting 177Repeat £¢7·>ñ@ 1ÖñFFAG-SPISpiral FFAG £ magnet, -upletUNDER DEVELOPEMENT¡ • ` MbDc 7 ¡ 4 d b ´ b 11 î d b ð: print field and coordinates along trajectories\ w @"/Å I¤÷¨ ¤÷¨q "£ , ŕ , 1 2£ Number of dipoles in the FFAG -uplet; no dim., I, 2*Etotal angular extent of the dipole; reference radiusdeg, cmtimes the following sequence2¡ 4 ACN, PŸ1, Azimuth for dipole positionning; 1hî d b 1 2, Ñ field at 1 î d b; deg, cm, kG, 4*E; index no dim. PŸ1 2ENTRANCE FIELD BOUNDARY®Z4®, Fringe field extent (ñ 4,w ² M, shift unused; ² 4to ² M² ² £®4×), sharp edge if =0 cm, no dim. 2*E1 : fringe field coefficients; EFB shift 0-6, 6*no dim, cm I,7*E®4S 1 2ÃS‰ 6 , , 4 dummies Azimuth of entrance EFB with respect to ACN; 2*deg, 4*unsued 6*Espiral angle; 4 unused® 4EXIT FIELD BOUNDARY(See ENTRANCE FIELD BOUNDARY)ñ , cm, no dim 2*E, shift 0-6, 6*no dim, cm 1, 7*E² ² 4 w ² M£ Ã*¬,, , 4 dummies 2*deg, 4*unused 6*E®Z4LATERAL FIELD BOUNDARYto be implemented - following data not usedñ , cm, no dim 2*E, shift 0-6, 6*no dim, cm 1, 7*E‰ , , , 2*deg, 4*cm 6*E> ‰1², ² 4 w ² M£, Å , 1 7Ã*¬End of repeatKIRD, ResolKIRD=0 : analytical computation of field derivatives, Resolis unusedKIRD 0 : numerical interpolation of field derivatives, meshsize is XPAS/ResolKIRD=2 or 25 : second degree, 9- or 25-point gridKIRD=4 : fourth degree, 25-point grid\; no dim. I, EXPAS Integration step cm EKPOS Positioning of the magnet, normally 2. Two options: 1-2 Iif KPOS = 2,1|¢, 1 · ,if KPOS = 1Positioning as follows:Radius and angle of reference, respectively, cm, rad, cm, rad 4*Eat entrance and exit of the magnetAutomatic positioning of the magnet, by means of