hi,I use the vgate,and define a ellipso phanton,get the error message: [G4-cerr]parameter value is not listed in the candidate List. [G4-cerr] ***** Illegal parameter (0) </gate/world/daughters/insert ellipso> ***** any help is appreciated! -- xupin Suzhou Institute of Biomedical Engineering and Technology,CAS No.88，Keling Road, Suzhou New District, China