3.3.10 multipole

multipole defines a multipole. Attributes:

• l - length [m] (default 0)
• knl - normal multipole knl[n] = 1/(B \rho) d^n B_y / dx^n [m^-(n+1)]
• ksl - skew multipole ksl[n] = 1/(B \rho) d^n B_y / dx^n [m^-(n+1)] where (x,y) is now a coordinate system rotated by 30 degrees around s with respect to the normal one.(default 0).
• tilt - roll angle [rad] about the longitudinal axis, clockwise.
• outR - external radius [m] of magnet (default set to aper+22cm)
• material - the magnet material (default set to “Iron”)

Example :

     
     mul : multipole, l=0.5*m , knl={ 0,0,1 } , ksl={ 0,0,0 };
     

Note that both knl and ksl are required and must contain the same number of parameters.