The following paper describes relatively low velocity impacts of iron projectiles on bismuth targets that result in the transmutation 209Bi --> 198Pt +11B and the isotopic change 209Bi --> 198Bi + 11 neutrons ---
"Physics of the transmutation of stable elements at the collision of macro-objects with regard to high speeds"
http://iopscience.iop.org/arti…8/1742-6596/1115/5/052020
http://iopscience.iop.org/arti…42-6596/1115/5/052020/pdf
These results appear easy to test.