Test of Statistical Theory of Nuclear Reactions at 24 keV

Stellar neutron capture cross sections ofK41andSc45

“…In total, accuracies better than 3% and 4% could be obtained for the SACS values of 45 Sc and 41 K, respectively. As shown by the comparison in Table V, the present results represent a significant improvement compared to previous activations [14,15,20]. This is illustrated for 45 Sc in Fig.…”

“…41 K: All but one of the five experimental data sets for the (n,γ ) cross section of 41 K in the astrophysically relevant energy range between about 1 and 300 keV were determined via the activation method some 40 years ago. The work of Stupegia et al [12] was devoted to neutron energies above 162 keV, therefore overlapping only marginally with the region of interest here, whereas earlier measurements [13][14][15] were centered at neutron energies around 25 keV. Conditioned by the experimental possibilities at the time, rather large uncertainties of 17% [15] and 23% [14] had to be admitted or only an upper limit could be given [13].…”

Calculation of Neutron Nuclear Data on Selenium Isotopes for JENDL-4

“…Therefore, the ENDF/B-VII.0 data are omitted in the following figures. 38) at 24 keV, although the measured value is much larger than the total capture cross sections obtained by Kamada et al 28) Further experiments would be needed to resolve the discrepancy. …”

Wall and Temperature Effects on Electrostatic Oscillations of Spheroidal Non-neutral Electron Plasmas in the Multi-Ring Electrode Trap

“…The data on neutron strength functions are due either to the analysis of average capture cross sections or of neutron resonance parameters. P-wave neutron strength functions obtained so far (Gibbon et a2 1961, Chaubey and Sehgal 1965, 1966, Bilpuch et a2 1960, Murty et al 1973, Siddappa et al 1974 from the analysis of average capture cross sections are dependent on certain assumptions made about the P-wave gamma-ray strength function and the P-wave neutron reduced width distribution in the absence of experimental data on P-wave resonance parameters. Sand P-wave gamma-ray strength functions had been assumed to be equal (Gibbon et a1 1961, Chaubey and Sehgal 1965, 1966 a1 …”