Pulsed Neutron Scattering |
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Page 25
... scattering length density . The wave- vector of the scattering corresponds to the inverse distance between the density fluctuations . with a special ' small - angle spectrometer ' . The name is borrowed from X - ray small - angle scattering ...
... scattering length density . The wave- vector of the scattering corresponds to the inverse distance between the density fluctuations . with a special ' small - angle spectrometer ' . The name is borrowed from X - ray small - angle scattering ...
Page 26
Colin G. Windsor. Table 1.2 . Some scattering length densities . Hydrogenous Deuterated X - ray Water -0.55 6.36 9.3 ... length density is the integral over the sample volume V , do 1 ΦΩ = V -r ) dr2 . 12 [ b ( r ) - b ] exp ( iQ.r ) dr S ...
Colin G. Windsor. Table 1.2 . Some scattering length densities . Hydrogenous Deuterated X - ray Water -0.55 6.36 9.3 ... length density is the integral over the sample volume V , do 1 ΦΩ = V -r ) dr2 . 12 [ b ( r ) - b ] exp ( iQ.r ) dr S ...
Page 404
... scattering length b , and 25 % B of length b . The mean length <br> gives the coherent scattering , while the RMS deviation from the mean < b > 1/2 gives the incoherent scattering . R R In the second term on the right , the terms R = R ...
... scattering length b , and 25 % B of length b . The mean length <br> gives the coherent scattering , while the RMS deviation from the mean < b > 1/2 gives the incoherent scattering . R R In the second term on the right , the terms R = R ...
Common terms and phrases
absorption accelerator atoms background beam tube beryllium Bragg reflection calculated cell collimation count-rate counter bank cross-section crystal monochromator curve defined density depends detector diffraction diffractometer direct geometry distribution dose E₁ effective efficiency elastic electron linac energy transfer epithermal equation fast neutrons figure of merit fission function given gives Harwell hydrogen incident beam incident energy incident flight path incident neutron intensity k₁ L₁ linac magnetic Maxwellian measured neutron beam neutron scattering neutron source nuclear nuclei phonon polarization proton pulse width pulsed neutron pulsed reactor pulsed source Q values Qmax radiation range ratio reciprocal lattice reciprocal space reflector resolution element resonance rotor sample scattered flight path scattering angle scattering length scattering vector Section shielding shown in figure shows single crystal slit solid angle spallation spectrometer spectrum spin target thermal thickness time-of-flight transmission typical vanadium velocity vibrational wave-vector wavelength y-rays Δι ΦΩ
References to this book
Polymers and Neutron Scattering Julia S. Higgins,Henri C. Benoît,Henri Benoît No preview available - 1996 |