What do image receptors have that allows them to interact with radiation?

Image receptors are designed to capture and respond to radiation, and they contain radiosensitive components that enable this interaction. These components are sensitive to radiation, allowing them to absorb and convert the incoming radiation exposure into a readable signal, which can then be processed into an image.

Radiosensitive materials, such as certain types of films or electronic sensors, are crucial for the functioning of image receptors because they determine the quality and clarity of the resulting images. For instance, in radiographic films, silver halide crystals are used as the radiosensitive component that forms an image based on the amount of radiation it receives when exposed.

The other options don't relate directly to the interaction with radiation as radiosensitive components do. Magnetic components would pertain to devices that utilize magnetic fields, thermal components relate to heat sensitivity rather than radiation interaction, and mechanical components are involved in the physical functioning of machines rather than their ability to respond to radiation. Thus, the presence of radiosensitive components is central to an image receptor’s effectiveness in imaging applications involving radiation.