Astrophysically important cross sections for the production of isotopes of lithium, beryllium, and boron in the proton-induced spallation of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ were measured for proton energies between 30 and 42 MeV. A time-of-flight method was used for mass identification. The astrophysical significance of the results is discussed.

NUCLEAR REACTIONS ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}+p$; $E=30.0, 33.7, 37.9, 41.9$ MeV; measured spallation $\sigma$ for producing masses 6, 7, 10, 11. Gas targets. Discuss astrophysical significance.

• Received 24 June 1974

DOI:https://doi.org/10.1103/PhysRevC.10.1045