Measurements of the D+D Reaction in Ti Metal with Incident Energies between 4.7 and 18, keV

Abstract

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 TiD_x. 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 E_d>6, keV for the D(d, , p)T reaction and E_d>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 E_d<20, keV.