Pulsed Neutron Scattering |
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Page 5
... time - of - flight . Equation ( 1.1 ) shows that a neutron of 0.1 nm wavelength travels at 3.956 mm us1 . Neutron velocities in this region can be conveniently measured by electronic timing of the neutron's flight time t over some flight ...
... time - of - flight . Equation ( 1.1 ) shows that a neutron of 0.1 nm wavelength travels at 3.956 mm us1 . Neutron velocities in this region can be conveniently measured by electronic timing of the neutron's flight time t over some flight ...
Page 40
... time to calculate the scattering law . Accessible regions in ( Q , w ) space For inelastic scattering we must ... flight to define either ko or k1 . Figure 1.34 shows the possibilities dependent on which of these is chosen . In ' direct ...
... time to calculate the scattering law . Accessible regions in ( Q , w ) space For inelastic scattering we must ... flight to define either ko or k1 . Figure 1.34 shows the possibilities dependent on which of these is chosen . In ' direct ...
Page 221
... time - of - flight spectrum . What is the most efficient way to do this ? The usual method is to divide the time over which counts are expected into discrete time channels or ' gates ' . Digital techniques can then be used to process ...
... time - of - flight spectrum . What is the most efficient way to do this ? The usual method is to divide the time over which counts are expected into discrete time channels or ' gates ' . Digital techniques can then be used to process ...
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 |