Patent ID: 8709381

Claim:
A process, comprising: utilizing at least one of high energy photons or high energy particles having an energy in the range of 20 MeV-430 MeV generated by at least one of a high energy electron accelerator, proton treatment device, heavy ion treatment device, or neutron treatment device to irradiate a compound comprising at least one of a carbon atom or an oxygen atom, wherein the compound comprising at least one of a carbon atom or an oxygen atom is at least one of adriamycin, cefoperazone sodium, glucose, porphyrin, or pamidronate disodium; and at least one of: allowing the carbon atom to convert into a carbon positron nuclide through a photonuclear reaction, a molecular structure of the compound comprising at least one of a carbon atom or an oxygen atom not disrupted, thereby preparing a compound comprising a carbon isotope, or allowing the oxygen atom to convert into an oxygen positron nuclide through the photonuclear reaction, the molecular structure of the compound comprising at least one of a carbon atom or an oxygen atom not disrupted, thereby preparing a compound comprising an oxygen isotope.