Electron microscopy: The sample is not exposed to a beam of electrons but detectors picks up the expelled electrons from the radionuclei.
Micro-autoradiography: A tissue section, typically cryosectioned, is placed against a phosphor screen as above.
Quantitative Whole Body Autoradiography (QWBA):  Larger than micro-autoradiography, whole animals, typically rodents, can be analyzed for biodistribution studies.