:SOLID world BOX 30 30 30 :ELEM Nitrogen N 7 14 :ELEM Oxygen O 8 16 :MIXT Air 0.001214 2 Nitrogen 0.75 Oxygen 0.25 :MATE_MEE Air 85.0729*eV :VOLU world world Air :ISOT H1 1 1 1.00783 :ISOT H2 1 2 2.0141 :ELEM_FROM_ISOT H H 2 H1 0.999885 H2 0.000115 :ISOT O16 8 16 15.9949 :ISOT O17 8 17 16.9991 :ISOT O18 8 18 17.9992 :ELEM_FROM_ISOT O O 3 O16 0.99757 O17 0.00038 O18 0.00205 :MIXT G4_WATER 1 2 H 0.111894 O 0.888106 :MATE_MEE G4_WATER 78*eV :VOLU "my tube" world G4_WATER :ROTM RM0 90 0 90 90 0 0 :PLACE "my tube" 1 world RM0 0 0 5 :ISOT C12 6 12 12 :ISOT C13 6 13 13.0034 :ELEM_FROM_ISOT C C 2 C12 0.9893 C13 0.0107 :ISOT N14 7 14 14.0031 :ISOT N15 7 15 15.0001 :ELEM_FROM_ISOT N N 2 N14 0.99632 N15 0.00368 :ISOT Ar36 18 36 35.9675 :ISOT Ar38 18 38 37.9627 :ISOT Ar40 18 40 39.9624 :ELEM_FROM_ISOT Ar Ar 3 Ar36 0.003365 Ar38 0.000632 Ar40 0.996003 :MIXT G4_AIR 0.00120479 4 C 0.000124 N 0.755268 O 0.231781 Ar 0.012827 :MATE_MEE G4_AIR 85.7*eV :VOLU sphere world G4_AIR :PLACE sphere 1 "my tube" RM0 0 1 10