Pulsed Neutron Scattering |
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Page 47
Colin G. Windsor. importance . It gives the lowest possible incident energy required to reach the given energy transfer . ( iii ) h2 Q2 hw 2m For energy transfers below E , the solution with the positive sign in equation ( 1.42 ) becomes ...
Colin G. Windsor. importance . It gives the lowest possible incident energy required to reach the given energy transfer . ( iii ) h2 Q2 hw 2m For energy transfers below E , the solution with the positive sign in equation ( 1.42 ) becomes ...
Page 302
... energy transfers . The time uncertainty on the scattered flight path is then negligible . At other energy transfers the sweep time will contribute to the determination of the scattered beam energy and so to the resolution in energy transfer ...
... energy transfers . The time uncertainty on the scattered flight path is then negligible . At other energy transfers the sweep time will contribute to the determination of the scattered beam energy and so to the resolution in energy transfer ...
Page 347
... energy transfers is limited . Figure 9.16 shows the energy transfer range as a function of t for a given scattering vector Q = 50 nm - 1 . There are two particular limitations shown inset in the figure . For ' parallel scans ' with the ...
... energy transfers is limited . Figure 9.16 shows the energy transfer range as a function of t for a given scattering vector Q = 50 nm - 1 . There are two particular limitations shown inset in the figure . For ' parallel scans ' with the ...
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 |