Neutron Radiative Capture and Transmission Measurements of W and Zr Isotopes in the keV Region

Neutron Capture and Total Cross-Section Measurements and Resonance Parameters of Gadolinium

“…This G n is much larger than that given by any of the referenced measurements. 10,11,15 Based on the present measurements, this G n is at least one order of magnitude too large. Figure 7 shows results of two REFIT calculations, not fits, using data from materials that were included as standards in one transmission and one capture measurement.…”

TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

“…[8] (the relative contributions of these resonances illustrate their importance for the MACS at low thermal energies). This is most probably caused by the much lower neutron sensitivity of the n TOF experimental setup relative to those used in previous measurements [8,9]. The large improvement in the neutron sensitivity is particularly evident in the case of the 6.8-keV resonance, which is characterized by one of the highest n / γ ratios (Fig.…”

“…The results from previous measurements either are old and incomplete [8][9][10] the neutron capture cross section without resonance analysis [12]. The only information on resonance parameters comes from the work of Boldeman et al [8], which was performed with a pair of nonhydrogenous fluorocarbon liquid scintillators [31] (capture measurement) and a 6 Li glass scintillator (transmission measurement) at the Oak Ridge electron linac more than three decades ago.…”

“…Existing experimental data mainly come from relatively old measurements [8][9][10][11]. Reference [9] lists the energies of the resonances up to 40 keV and gives capture kernels up to 10 keV (with associated errors of between 10% and 20%); Ref.…”

“…Reference [9] lists the energies of the resonances up to 40 keV and gives capture kernels up to 10 keV (with associated errors of between 10% and 20%); Ref. [10] lists some resonances (15 of 52 known in this range) up to 52 keV but gives detailed information only for four strong resonances.…”