// Define rotation matrix
:ROTM RM0 0. 0. 0.
:ROTM RM90Y 0. 90. 0.
:ROTM RM_REFLZ 90. 0. 90. 90. 180. 0.

// Define volumes and place them
:VOLU world BOX 100. 100. 100. G4_AIR
:VOLU vol1 BOX 10. 10. 20. G4_Cu
:VOLU vol2 TORUS 5. 10. 20. 0. 360. G4_WATER
:VOLU vol3 POLYCONE 0. 90.*deg 4
 5. -30. 
 10. 0.
 20. 25.
 5.  30.
  G4_Al


:VOLU_ASSEMBLY Assembly 4
  vol1 RM0 0. 0. 0. 
  vol2 RM90Y 20. 0. 0.
  vol3 RM0 50. 0. 0.
  vol3 RM_REFLZ -35. 0. 0.

:PLACE_ASSEMBLY Assembly world RM0 0. 0. -30. 
:PLACE_ASSEMBLY Assembly world RM0 0. 0. 50.