A beam of thermal neutrons emerges from a nuclear reactor and is incident on a crystal as shown in the figure below. The beam is Bragg scattered from a crystal whose planes are separated by 0.247 nm. Fro the continuous energy spectrum of the beam we wish to select neutrons of energy 0.0105 eV. Find the Bragg scattering angle that results in a beam of this energy. Will other energies also be present in the scattered beam at that angle?
A beam of thermal neutrons emerges from a nuclear reactor and is incident on a crystal as shown in the figure below. The beam is Bragg scattered from a crystal whose planes are separated by 0.247 nm. Fro the continuous energy spectrum of the beam we wish to select neutrons of energy 0.0105 eV. Find the Bragg scattering angle that results in a beam of this energy. Will other energies also be present in the scattered beam at that angle?
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Transcribed Image Text:4. A beam of thermal neutrons emerges from a nuclear reactor and is incident on a
crystal as shown in the figure below. The beam is Bragg scattered from a crystal
whose planes are separated by 0.247 nm. Fro the continuous energy spectrum of
the beam we wish to select neutrons of energy 0.0105 eV. Find the Bragg scattering
angle that results in a beam of this energy. Will other energies also be present in the
scattered beam at that angle?
Shielding
- Graphite
Neutron
beam
Reactor
Scattering
crystal
Expert Solution
Step 1
Given Data :
Separation between plane, d = 0.247 nm
Energy of neutrons = 0.0105 eV
To Find :
Bragg's scattering angle
Formula used :
2 d Sin(theta) = n (lambda)
Where theta = Bragg's scattering angle
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