Cross sections of⁶Li(t,d₁)⁷Li*[0.478] and⁶Li(t,p₁)⁸Li*[0.981] nuclear reactions in the 0-2 MeV energy range

Abstract

An original extrapolation technique developed previously is modified and applied to study nuclear reactions in the 6Li + T system at energies E = 0-2 MeV. Cross sections of gamma-ray-producing reactions 6Li(t,d1)7Li*[0.478] and 6Li(t,p1)8Li*[0.981] with important diagnostic implications are calculated. The (t,d1) nuclear data found exceed those accepted elsewhere by 2.5-3.5 times at sub-barrier energies. The cross sections of the (t,p1) reaction are calculated for the first time.

Nuclear reaction6Li(3He, p)8Be*[16.63; 16.92] at sub-barrier energies

“…We calculate the necessary data within the framework of an extrapolation procedure developed by us earlier and used in a study of low-energy nuclear reactions in other Li-containing systems, 6 Li + D [1] and 6 Li + T [2,3]. In our approach, sub-barrier energy behaviour of the 6 Li + 3 He reaction cross sections, σ (E), is represented in the form…”

“…In this paper, we continue a series of our studies on 6 Li-induced nuclear reactions of particular interest in nuclear fusion research and relevant to some astrophysical problems. Our previous works in the field published recently in this journal [1,2] dealt with nuclear processes in 6 Li + D and 6 Li + T systems. This time we investigate low-energy 6 Li + 3 He reactions which may have an important implication as a nuclear thermometer of D-3 He fusion plasma.…”

“…The following nuclear reactions induced by an admixture of 6 Li in the D- 3 He plasma may have diagnostic implications [7]: At present, however, lack of necessary low-energy nuclear data does not allow detailed investigations of the capability of the suggested diagnostics. While the 6 Li + D reactions (1) were extensively studied previously (see references in [3]), experimental data on the 6 Li + 3 He reaction (2) are still scanty at thermonuclear energies. The latter has been measured at E3 He above ∼0.9 MeV [8,9] 3 , which turns out to be not sufficient for diagnostic purposes.…”