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

Input interpretation

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

Result

605 GeV (gigaelectronvolts)
605 GeV (gigaelectronvolts)

Comparison as energy for 605 GeV

 ≈ 2.3 × initial per beam operating energy of the CERN Super Proton Synchrotron in 1981 ( ≈ 4.3×10^-8 J )
≈ 2.3 × initial per beam operating energy of the CERN Super Proton Synchrotron in 1981 ( ≈ 4.3×10^-8 J )
 ≈ 4.8 × mass-energy of a Higgs boson particle ( 1 m_H^0 c^2 )
≈ 4.8 × mass-energy of a Higgs boson particle ( 1 m_H^0 c^2 )
 ≈ 6.5 × mass-energy equivalent of a Z boson ( ≈ 1.5×10^-8 J )
≈ 6.5 × mass-energy equivalent of a Z boson ( ≈ 1.5×10^-8 J )

Comparison as kinetic energy for 605 GeV

 ≈ 0.61 × approximate kinetic energy of a flying mosquito ( ≈ 1.6×10^-7 J )
≈ 0.61 × approximate kinetic energy of a flying mosquito ( ≈ 1.6×10^-7 J )

Absorber material properties

atomic number (Z) | 60 atomic mass number (A) | 144.242 〈Z/A〉 | 0.41597 nuclear collision length (λ_T) | 103.4 g/cm^2 nuclear interaction length (λ_I) | 177.4 g/cm^2 radiation length (X_0) | 7.71 g/cm^2 minimum ionization (- dE/ dx |_ min) | 1.231 MeV/(g/cm^2) density | 7.003 g/cm^3 mean excitation energy | 546 eV Molière radius | 16.3 g/cm^2 pion collision length | 127.3 g/cm^2 pion interaction length | 204.6 g/cm^2 plasma energy | 48.82 eV
atomic number (Z) | 60 atomic mass number (A) | 144.242 〈Z/A〉 | 0.41597 nuclear collision length (λ_T) | 103.4 g/cm^2 nuclear interaction length (λ_I) | 177.4 g/cm^2 radiation length (X_0) | 7.71 g/cm^2 minimum ionization (- dE/ dx |_ min) | 1.231 MeV/(g/cm^2) density | 7.003 g/cm^3 mean excitation energy | 546 eV Molière radius | 16.3 g/cm^2 pion collision length | 127.3 g/cm^2 pion interaction length | 204.6 g/cm^2 plasma energy | 48.82 eV