Simulate normal conducting magnet with asymmetry structure

[Shouvik Mondal]

Dear g4beamline group,

I am trying to simulate magnet system in neutrino beamline with the structure as the attached picture. 

However, at the initial time I don't know how to simulation cylinder with asymmetry structure or some argument I can use as box or absorbers. Can you give me your guides for simulation?

Best regards,

Shouvik