Question The Mssbauer effect was discovered using the decay of the 0.12939 MeV second excited state of

Question

Transcribed Image Text:

The Mössbauer effect was discovered using the decay of the 0.12939 MeV second excited state of 19¹Ir. The lifetime of this isomer is 0.13 ns. (a) Compute the width I of this level. (b) Compute the recoil energy of a free ¹9¹Ir atom that emits the 0.12939 MeV photon. (c) Resonant (recoilless) absorption occurs when ¹9¹Ir is bound into a lattice. If a Doppler shift equal to I destroys the resonance absorption, show that the Doppler velocity v necessary is given by V≈ cl e The Mössbauer effect was discovered using the decay of the 0.12939 MeV second excited state of 19¹Ir. The lifetime of this isomer is 0.13 ns. (a) Compute the width I of this level. (b) Compute the recoil energy of a free ¹9¹Ir atom that emits the 0.12939 MeV photon. (c) Resonant (recoilless) absorption occurs when ¹9¹Ir is bound into a lattice. If a Doppler shift equal to I destroys the resonance absorption, show that the Doppler velocity v necessary is given by V≈ cl e

Answer rating: 100% (QA)

Answer ... View the full answer