Since nuclear isomers (i.e., metastable atoms with excited nuclei) can store energies far exceeding chemical energies, could any LENR results be due to undetected isomers decaying to nuclear ground state?
Some are extremely long-lived, and some may still be undiscovered. (e.g., "Discovery of a Nuclear Isomer in 65Fe..." http://prl.aps.org/abstract/PRL/v100/i13/e132501) Extremely low contamination would suffice. I'm not sure, but I believe that detection would be difficult. Unlikely, but I would welcome opinions. Thanks, Lou Pagnucco