抄録
The D+D reactions in Ti metal were investigated for the deuteron incident energies between 4.7 and 18, keV. Observed were protons, tritons and 3He particles emitted in the deuteron bombardment on TiDx. Thick target yields for the D(d, , p)T and D(d, , n)3He reactions were measured at bombarding energies down to 4.7 and 5.4, keV, respectively, for the first time. They were well explained with the reported astrophysical S-factors which were deduced from gas target measurements at Ed>6, keV for the D(d, , p)T reaction and Ed>13.3, keV for the D(d, , n)3He reaction. The cross section ratio σ(d, , p)/σ(d, , n) was obtained down to 6.4, keV, and was found to be constant at around 1.0 for Ed<20, keV.
