Pulsed Neutron Scattering |
From inside the book
Results 1-3 of 51
Page 154
... pulse shape by a rectangle , equal to it in area , whose width is equal to its full width at half - height no ( λ , t ) = npeak ( λ ) for t < At ( 2 ) and = 0 for t > At ( 2 ) and t < 0 no ( 2 , t ) dt = npeak ( 2 ) At ( 2 ) = n 。( 2 ) ...
... pulse shape by a rectangle , equal to it in area , whose width is equal to its full width at half - height no ( λ , t ) = npeak ( λ ) for t < At ( 2 ) and = 0 for t > At ( 2 ) and t < 0 no ( 2 , t ) dt = npeak ( 2 ) At ( 2 ) = n 。( 2 ) ...
Page 179
... pulse width . This also implies the assumption that the slit package width is narrow compared to the width of the ' lighthouse beam ' at the moderator surface W , < wLo / D . The transmitted intensity is best obtained by considering the ...
... pulse width . This also implies the assumption that the slit package width is narrow compared to the width of the ' lighthouse beam ' at the moderator surface W , < wLo / D . The transmitted intensity is best obtained by considering the ...
Page 182
... width is essential to reach pulse widths smaller than the sweep time . The absorber thickness z is critical in giving a reasonable transmission at the shorter pulse times . The optimum neutron chopper performance Suppose we have a Fermi ...
... width is essential to reach pulse widths smaller than the sweep time . The absorber thickness z is critical in giving a reasonable transmission at the shorter pulse times . The optimum neutron chopper performance Suppose we have a Fermi ...
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 |