Pulsed Neutron Scattering |
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Page 99
... measured by a detector in the beam at a known flight path . ( ii ) The pulse widths At are measured by observing the widths in time of reflections from a single crystal . Changing enables the At at any desired wavelength to be measured ...
... measured by a detector in the beam at a known flight path . ( ii ) The pulse widths At are measured by observing the widths in time of reflections from a single crystal . Changing enables the At at any desired wavelength to be measured ...
Page 100
... measured directly from the time - of - flight spectrum of the analysed neutrons . Each order of reflection gives a point on the curve of the time width At as a function of wavelength . How can these quantities measured at a flight path ...
... measured directly from the time - of - flight spectrum of the analysed neutrons . Each order of reflection gives a point on the curve of the time width At as a function of wavelength . How can these quantities measured at a flight path ...
Page 257
... measured . A detector element size of 10 mm gives collimations x , .B , ~ 1 ° , matching the incident collimations , and allows unit cell sizes of order 2.5 nm to be measured up to a resolution of 0.05 nm . Factors determining accuracy ...
... measured . A detector element size of 10 mm gives collimations x , .B , ~ 1 ° , matching the incident collimations , and allows unit cell sizes of order 2.5 nm to be measured up to a resolution of 0.05 nm . Factors determining accuracy ...
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 |