(n,α) reactions cross section research at IPPE

SCALP: Scintillating ionization chamber for ALPha particle production in neutron induced reactions

“…2) one can appreciate various discrepancies in the evaluated and experimental data, especially between 6 and 8 MeV. Data from Giorginis [11] and Khryachkov [12,13] are higher than the others data. In the range between 6 and 8 MeV also among the evaluations one can see important discrepancies.…”

“…It is possible to find in literature the works of Seitz and Huber [6], Davis et al [7], Divatia et al [8], Sekharan et al [9], Dandy et al [10], Giorginis et al [11] and Khryachkov et al [12,13]. The cross sections were estimated from the experimental values and nuclear model predictions.…”

Uncertainty of the astrophysical O17,18(α,n)Ne20,21Mohr1 2017Phys. Rev. C9070View full textAdd to dashboardCite

“…Bell et al [26] are able to resolve the α 0 and α 1 channels for low neutron energies between 3 and 4.5 MeV; at higher energies also only the sum of the first two channels is reported. At energies above 4 MeV, recently Khryachkhov et al [27,28] have also measured the sum of the α 0 and α 1 channels. The (n,α) data are in good agreement below 5 MeV (see Fig.…”

“…In the course of this study of 17 F+α, the mirror 17 O(α,n) 20 Ne reaction was also analyzed, and unexpected inconsistencies between different experimental data sets were identified. These are based on the 17 O(α,n) 20 Ne data in [19][20][21][22][23][24] and the reverse 20 Ne(n,α) 17 O reaction [25][26][27][28]. As a consequence, the present work now focuses on the resulting uncertainties of the 17 O(α,n) 20 Ne reaction rate.…”

Measurement of (n,α) cross section for set of structural material isotopes

“…To minimize the background, we used the experience of investigations of (n,α) reactions on the components of the ionization chamber's working gas [1,2]. The target was mounted on gold filaments fastened to the chamber's first guard electrode.…”