Cross sections of the57Fe(n,α)54Crand63Cu<

Validation of an optical potential for incident and emitted low-energy $$\alpha $$-particles in the $$A\sim 60$$ mass range

“…2) are compared in the following with measured cross sections of low-energy proton-and neutron-induced reactions leading to excited Fe, Co, Cu, and Zn isotopes. A particular attention will be payed to the recent data, e.g., [22][23][24][25][26][27]. The aim is to ascertain either the account of the α-particle emission by the α-particle OMP [14] or eventual questions that may still need further consideration.…”

“…Moreover, validation of the OMP [14] for α-emission in low-energy proton-induced reactions on Zn isotopes, at variance with the fast-neutron induced reactions on Zr isotopes [21], was related to a surface character of the latter [20]. Analysis of α-emission from nuclei excited in reactions induced by either neutrons or low-energy protons became thus of interest while there are quite useful recent data of low-lying states feeding [22][23][24][25][26][27] for A ∼ 60 nuclei.…”

“…3 with measured cross sections of low-energy proton-and neutron-induced reactions leading to excited Fe, Co, Cu, and Zn isotopes, with particular emphasis of above-mentioned Refs. [22][23][24][25][26][27]. The main points of the DI analysis within the distorted-wave Born approximation (DWBA) method and the code FRESCO [32], for calculation of pickup reaction cross sections, are also given in Sect.…”

“…Moreover, there are interesting issues related to the neutron magic number N = 28 of 54 Fe as the striking difference between the (n, p) excitation functions for the target nuclei 54,56 Fe. On the other hand, there are recently measured essential cross sections for populations of the first three discrete levels of the even-even residual nucleus 54 Cr by (n, α) reaction on 57 Fe [24]. Their suitable description by model calculations is therefore a key test of the model assumptions and performance.…”

Cross sections of the 144Sm(n,α)141Nd and 66Zn(n,α)63Ni reactions at 4.0, 5.0 and 6.0 MeV

“…Where N det is the detected counts, i.e., N α orN f , N th is the number of events with amplitudes below threshold (the threshold correction), and N ab is the number of events absorbed in the samples (the self-absorption correction) [9]. The calculation method of ε will be discussed in the next section.…”