On the relationship between intensity and resolution of pulsed-source backscattering spectrometers
作者： R.A. Robinson
DOI: 10.1016/0921-4526(95)92831-T
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摘要: Abstract In a recent paper on the high-resolution pulsed-source backscattering spectrometer LAM-80ET, Ikeda et al. noted that observed intensity I varies linearly with energy resolution Δ ɛ , changing order of analyser reflection. This is apparently at variance reactor folklore, which based solely phase-space arguments, in it assumed ∝Δ 2 . We discuss this problem terms (a) resolution-volume (b) dependence source flux, (c) appropriate Jacobian for transformation from time-of-flight to scan, (d) simple model and (e) wavelength variation critical angle neutron guide. Making suitable simplifying approximations, we arrive form 4/3
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