EFFECT OF REFLECTION ON THE PERFORMANCE OF MECHANICAL NEUTRON MONOCHROMATORS

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Rev. Sci. Instr.

DOI:https://doi.org/10.1063/1.1717547· OSTI ID:4005783

Passell, L; Dickinson, W C; Bartolini, W

The effect of total reflection on the calculated transmission function of mechanical monochromators is discussed, The critical angle for total reflection of neutrons with wavelength lambda from a smooth surface is given by THETA /sub c/ = lambda (N/sub a// pi )/sup 1/>s, where N is the density of the nuclei and a is be coherent scattering amplitude averaged over the nuclei forming the surface. The monochronnator should be made of a material with a snnall coherent and large incoherent and/or absorption cross section. (L.N.N.)

• Research Organization: Univ. of California, Livermore
• NSA Number: NSA-15-026278
• OSTI ID: 4005783
• Journal Information: Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 32
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
CROSS SECTIONS
DENSITY
ENGINEERING AND EQUIPMENT
FREQUENCY
MONOCHROMATORS
NEUTRONS
NUCLEI
PERFORMANCE
REFLECTION
SCATTERING
SURFACES
TRANSFER FUNCTIONS