Pulsed Neutron Scattering |
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Page 22
... typical molecular crystal with < u2 > 1 / 2 ~ 0.1 nm requires only Qmax ~ 150 nm - 1 . Diffraction with X - rays41 -1 - 1 X - rays are scattered by atomic electrons , not the nuclei . Scattered wavelets from different parts of the atom ...
... typical molecular crystal with < u2 > 1 / 2 ~ 0.1 nm requires only Qmax ~ 150 nm - 1 . Diffraction with X - rays41 -1 - 1 X - rays are scattered by atomic electrons , not the nuclei . Scattered wavelets from different parts of the atom ...
Page 184
... typical existing neutron choppers and compare their performance on a reactor with that of a pulsed source . A defect of this comparison is that it might be overtaken by technical developments in choppers . The performance of typical ...
... typical existing neutron choppers and compare their performance on a reactor with that of a pulsed source . A defect of this comparison is that it might be overtaken by technical developments in choppers . The performance of typical ...
Page 186
... typical linac at 0 · 05 , 0-1 and 0-2 nm wavelengths are shown in table 4.2 . An effective peak flux eff Thus , the calculations of peak flux discussed above must be multiplied by a factor Fer to derive an effective steady - state flux ...
... typical linac at 0 · 05 , 0-1 and 0-2 nm wavelengths are shown in table 4.2 . An effective peak flux eff Thus , the calculations of peak flux discussed above must be multiplied by a factor Fer to derive an effective steady - state flux ...
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 |