Investigation of the 48Ti(n,γ)49Ti reaction

The energy Esub(γ) and the intensity Isub(γ) of 97-γ-rays produced by capture of thermal neutrons in 48Ti have been measured. Of the total observed strength 99.6% has been placed in the decay scheme which consists of 78 transitions between 28 levels. The Q-value of 8142.41(3) keV is in agreement with previous data. From a measurement of the γ-ray circular polarization resulting from the capture of polarized neutrons, combined with previous (d, p) work, the spins of 5 levels could be determined, and those of 13 other levels could be confirmed. The primary strength to 2p states agrees with a sum rule estimate. The nature of the capture process was determined as valence capture. The total cross-section estimates agrees with experiment. The total number of Jsup(π)=(1/2-5-/2) levels below Esub(x)=3.8 MeV and the resonance level density are explained satisfactorily by the Fermi gas model. (orig.)