3.3.5 rbend

rbend defines a rectangular bending magnet. Attributes:

• l - length [m] (default 0)
• angle - bending angle [rad] (default 0)
• B - magnetic field [T]
• aper - aperture [m] (default same as beampipe radius)
• outR - external radius [m] of magnet (default set to aper+22cm)
• material - the magnet material (default set to “Iron”)
• THE CODE ALSO ALLOWS FOR A QUADRUPOLE FIELD GRADIENT K1..

when B is set, this defines a magnet with appropriate field strength and angle is not taken into account. Otherwise, the value of B that corresponds to bending angle angle for a particle in use (defined by the beam command, with appropriate energy and rest mass) is calculated and used in the simulations.

Example :

     
     rb1 : rbend, l=0.5*m, angle = 0.01;