Pulsed Neutron Scattering |
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Page 190
... shielding . Good shielding is not necessarily expensive , and most hazards can be reduced by enough forethought in shielding design . A second aspect of shielding is the reduction of spectrometer background . Fast neutrons present the ...
... shielding . Good shielding is not necessarily expensive , and most hazards can be reduced by enough forethought in shielding design . A second aspect of shielding is the reduction of spectrometer background . Fast neutrons present the ...
Page 197
... Shielding ' Shielding has the twofold aim of reducing radiation doses and of reducing spectrometer background . The theory of shielding is not very refined . A given shield can be assessed , but its optimization is much more difficult ...
... Shielding ' Shielding has the twofold aim of reducing radiation doses and of reducing spectrometer background . The theory of shielding is not very refined . A given shield can be assessed , but its optimization is much more difficult ...
Page 198
... Shielding materials The choice of material for a shield is not only a matter of its absorption coefficient μ , but depends as much on its cost and mechanical properties , and on what the shield does to the neutron . The strongest ...
... Shielding materials The choice of material for a shield is not only a matter of its absorption coefficient μ , but depends as much on its cost and mechanical properties , and on what the shield does to the neutron . The strongest ...
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 |