ON EXCLUSION OF COHERENT SCATTERING FROM THE CROSS SECTION FOR SCATTERING OF SLOW NEUTRONS BY SIMPLE CRYSTAL LATTICES (in Russian)
- Oskotsky
A method for measuring the cross section for scattering of slow neutrons by simple lattices is proposed, in which coherent single-phonon scattering is removed. The pure incoherent scattering cross section can be used for determining the phonon distribution function in the crystal. The velocity of the incident neutrons should exceed the maximal velocity of sound in the crystal, and the scattering cross section should be measured near those directions along which Bragg elastic scattering is possible. If the inelastic forward scattering cross section is measured, polycrystals may be employed for the measurements. Depending on the crystal under investigation the incident neutrons should not have a wavelength larger than 1.5 to 0.5 A. (auth)
- Research Organization:
- Inst. of Semiconductors, Academy of Sciences, USSR
- NSA Number:
- NSA-17-019381
- OSTI ID:
- 4728826
- Journal Information:
- Zh. Eksperim. i Teor. Fiz., Journal Name: Zh. Eksperim. i Teor. Fiz. Vol. Vol: 44
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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