Pulsed Neutron Scattering |
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Page 127
... figure of merit . If the wavelength range of interest lies in the region which was formerly an ambient Maxwellian but is now epithermal , the choice is more subtle . We must assume a figure of merit . For the no At 2 figure of merit shown ...
... figure of merit . If the wavelength range of interest lies in the region which was formerly an ambient Maxwellian but is now epithermal , the choice is more subtle . We must assume a figure of merit . For the no At 2 figure of merit shown ...
Page 182
... figure of merit n / △ t2 . For a fixed moderator width , equation ( 4.20 ) is easily adapted to answer this . Substituting for the slit width w = [ W , - ( N - 1 ) z ] / N we have n = - - по WHH , [ W , − ( N − 1 ) z ] 2 8л2LZ D The ...
... figure of merit n / △ t2 . For a fixed moderator width , equation ( 4.20 ) is easily adapted to answer this . Substituting for the slit width w = [ W , - ( N - 1 ) z ] / N we have n = - - по WHH , [ W , − ( N − 1 ) z ] 2 8л2LZ D The ...
Page 187
... figure of merit of the pulsed source compared with a typical reactor rotor . Figure 4.26 is a log - log plot of the alternative energy - dependent flux , per steradian , per energy unit , per time unit , for the IPNS source110 Peff ( E ) ...
... figure of merit of the pulsed source compared with a typical reactor rotor . Figure 4.26 is a log - log plot of the alternative energy - dependent flux , per steradian , per energy unit , per time unit , for the IPNS source110 Peff ( E ) ...
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 |