Pulsed Neutron Scattering |
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Page 272
... count - rate for these different runs is likely to be very different . In particular , the can and background runs generally have low count - rates compared with sample and vanadium runs . These rates should be measured experimentally ...
... count - rate for these different runs is likely to be very different . In particular , the can and background runs generally have low count - rates compared with sample and vanadium runs . These rates should be measured experimentally ...
Page 273
... count - rates T Tv འ S1 S 7.3 . Correcting the data The run may now be over ; the experiment is not . Raw time - of ... rate is attenuated by a factor 1 A = V exp [ − No ( p + q ) ] dV . where p + q is the path length through the ...
... count - rates T Tv འ S1 S 7.3 . Correcting the data The run may now be over ; the experiment is not . Raw time - of ... rate is attenuated by a factor 1 A = V exp [ − No ( p + q ) ] dV . where p + q is the path length through the ...
Page 396
... Count - rates can be extremely high . For a high flux source with a 1 eV flux ( E ) 1013 / Ens ( eV ) , flight path L , and L , of 10 m and 4 m respectively , a 10 mm square sample and a counter of efficiency 0-1 , the count - rate per ...
... Count - rates can be extremely high . For a high flux source with a 1 eV flux ( E ) 1013 / Ens ( eV ) , flight path L , and L , of 10 m and 4 m respectively , a 10 mm square sample and a counter of efficiency 0-1 , the count - rate per ...
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 |