In radiographic imaging, what is the purpose of using a receptor?

The purpose of using a receptor in radiographic imaging is to capture the image produced by x-ray exposure. When x-rays pass through the body and strike the receptor, the receptor records the differences in radiation transmission, which ultimately results in a visual representation of the internal structures of the body. This image is crucial for diagnostic purposes as it allows healthcare professionals to assess conditions, make diagnoses, and plan treatments.

The other choices relate to important aspects of radiographic practices but do not define the primary function of the receptor. Measuring patient dosage, protecting the patient, and filtering out unwanted radiation are important components of radiation safety and protection but occur through other mechanisms and equipment in the radiographic process. The receptor's specific role is centered on image capture, making option B the correct choice.