************************************************************** Geant4 version Name: geant4-11-02-ref-05 (31-May-2024) ************************************************************** The Box is 100 m of Air Material: Air density: 1.290 mg/cm3 RadL: 285.161 m Nucl.Int.Length: 662.680 m Imean: 85.703 eV temperature: 293.15 K pressure: 1.00 atm ---> Element: Nitrogen (N) Z = 7.0 N = 14 A = 14.010 g/mole ---> Isotope: N14 Z = 7 N = 14 A = 14.00 g/mole abundance: 99.632 % ---> Isotope: N15 Z = 7 N = 15 A = 15.00 g/mole abundance: 0.368 % ElmMassFraction: 70.00 % ElmAbundance 72.71 % ---> Element: Oxygen (O) Z = 8.0 N = 16 A = 16.000 g/mole ---> Isotope: O16 Z = 8 N = 16 A = 15.99 g/mole abundance: 99.757 % ---> Isotope: O17 Z = 8 N = 17 A = 17.00 g/mole abundance: 0.038 % ---> Isotope: O18 Z = 8 N = 18 A = 18.00 g/mole abundance: 0.205 % ElmMassFraction: 30.00 % ElmAbundance 27.29 % ========= Table of registered couples ============================ Index : 0 used in the geometry : Yes Material : Air Range cuts : gamma 10 fm e- 10 fm e+ 10 fm proton 10 fm Energy thresholds : gamma 100 eV e- 100 eV e+ 100 eV proton 0.001 meV Region(s) which use this couple : DefaultRegionForTheWorld ======================== run summary ====================== The run is: 100000 proton of 10 MeV through 100 m of Air (density: 1.29 mg/cm3) Process calls frequency ---> hIoni = 100000 MeanFreePath: 243.89 um +- 242.66 um massic: 0.031462 mg/cm2 CrossSection: 41.001 cm^-1 massic: 31784 cm2/g mean energy of charged secondaries: 543.82 eV ---> mass_energy_transfer coef: 1.7285 cm2/g Verification : crossSections from G4EmCalculator hIoni= 31916 cm2/g total= 31916 cm2/g