Final answer:
Technetium-99m and molybdenum-99 are generated by a cyclotron or linear accelerator.
Step-by-step explanation:
The particles generated by a cyclotron or linear accelerator include isotopes such as technetium-99m and molybdenum-99. Technetium-99m is produced in a cyclotron by bombarding a target material with protons, which results in the production of technetium-99m through radioactive decay. Molybdenum-99, on the other hand, is produced by neutron bombardment of molybdenum-98 in a nuclear reactor.