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what's the maximum energy of electrons that 20cm of oxygen can block?

Input interpretation

kinetic energy of particle |  incident particle | e^- (electron) radiation absorber | oxygen thickness | 20 cm
kinetic energy of particle | incident particle | e^- (electron) radiation absorber | oxygen thickness | 20 cm

Result

0.14 MeV (megaelectronvolts)
0.14 MeV (megaelectronvolts)

Comparison as energy for 0.14 MeV

 ≈ 0.27 × mass-energy of an electron ( 1 m_e c^2 )
≈ 0.27 × mass-energy of an electron ( 1 m_e c^2 )
 ≈ 1.1 × average energy of a gamma ray photon ( ≈ 2×10^-14 J )
≈ 1.1 × average energy of a gamma ray photon ( ≈ 2×10^-14 J )
 ≈ (1 to 1000) × energy of an X-ray photon ( 1×10^-17 to 2×10^-14 J )
≈ (1 to 1000) × energy of an X-ray photon ( 1×10^-17 to 2×10^-14 J )

Properties

shielding thickness | 20 cm CSDA range | 0.0286 g/cm^2 stopping power | 2.95 MeV/(g/cm^2) collision stopping power | 2.95 MeV/(g/cm^2) radiative stopping power | 0.00482 MeV/(g/cm^2) radiation yield | 9.38×10^-4 density effect parameter | 0
shielding thickness | 20 cm CSDA range | 0.0286 g/cm^2 stopping power | 2.95 MeV/(g/cm^2) collision stopping power | 2.95 MeV/(g/cm^2) radiative stopping power | 0.00482 MeV/(g/cm^2) radiation yield | 9.38×10^-4 density effect parameter | 0

Range versus energy

Range versus energy
Range versus energy

Radiation yield versus energy

Range versus energy Radiation yield versus energy
Range versus energy Radiation yield versus energy

Density effect parameter versus energy

Range versus energy Density effect parameter versus energy
Range versus energy Density effect parameter versus energy

Stopping power versus energy

Stopping power versus energy
Stopping power versus energy

Absorber material properties

〈Z/A〉 | 0.5 nuclear collision length (λ_T) | 61.3 g/cm^2 nuclear interaction length (λ_I) | 90.2 g/cm^2 radiation length (X_0) | 34.24 g/cm^2 minimum ionization (- dE/ dx |_ min) | 1.801 MeV/(g/cm^2) (at 20 °C and 1 atm) density | 1.429 g/L (at 0 °C) mean excitation energy | 95 eV Molière radius | 8.91 g/cm^2 pion collision length | 88.5 g/cm^2 pion interaction length | 121.9 g/cm^2 plasma energy | 0.74 eV
〈Z/A〉 | 0.5 nuclear collision length (λ_T) | 61.3 g/cm^2 nuclear interaction length (λ_I) | 90.2 g/cm^2 radiation length (X_0) | 34.24 g/cm^2 minimum ionization (- dE/ dx |_ min) | 1.801 MeV/(g/cm^2) (at 20 °C and 1 atm) density | 1.429 g/L (at 0 °C) mean excitation energy | 95 eV Molière radius | 8.91 g/cm^2 pion collision length | 88.5 g/cm^2 pion interaction length | 121.9 g/cm^2 plasma energy | 0.74 eV