There are several types of autoradiography, each with specific applications: - Tritium Autoradiography: Involves the use of tritiated compounds, such as tritiated thymidine, to study DNA synthesis and cell proliferation. - Phosphor Imaging: Uses phosphor screens to detect radioactive emissions, offering a faster and more sensitive alternative to traditional film-based autoradiography. - In Situ Hybridization Autoradiography: Combines autoradiography with in situ hybridization to detect specific nucleic acid sequences within tissue sections.