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Results are presented to 550 keV of high resolution time of flight neutron total cross section measurements using various sample thicknesses of natural calcium. An R-matrix analysis was made to fit the results for the nine strong s levels in ⁴⁰Ca above 100 keV. A transmission area analysis was made for the 22 weaker observed levels which are also mainly due to ⁴⁰Ca, but have $l>0$. We obtain 10⁴S₀=(2.97_-1.05+1.95) for ⁴⁰Ca.NUCLEAR REACTIONS ⁴⁰Ca(n,n), (n,γ), E=0-550 keV; measured σₜ(E); deduced E₀, Γₙ, ag Γₙ, S₀.
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Singh et al. (1974) studied this question.
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