Thick target yields of 26Alg.s. from the 16O(16O,x)26Alg.s. and 16O(14N,x)26Alg.s. reactions

Extending the earlier work of Bateman et al., we have measured the energy-integrated yield of ²⁶Alg.s. from the ¹⁶O(¹⁶O,x-)²⁶Alg.s and ¹⁶O(¹⁴N,x)²⁶Alg.s. reactions. We find that although the yield from the ¹⁶O(¹⁶O,x)²⁶Alg.s. reaction is several times larger than from the ¹²C(¹⁶O,x)²⁶Alg.s. reaction, the abundance of fossil ²⁶Alg.s. observed in carbonaceous chondrite meteorites could be produced by oxygen-rich cosmic rays via the ¹⁶O(¹⁶O,x) ²⁶Alg.s. reaction only under the improbable scenario that more than 40% of the solar system oxygen was injected into the protosolar nebula as cosmic rays.