Radiography

thumb|Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. thumb|William D. Coolidge|William Coolidge explains medical imaging and X-rays.

Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography. Similar techniques are used in airport security, (where "body scanners" generally use backscatter X-ray). To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and it is projected towards the object. A certain amount of the X-rays or other radiation are absorbed by t

target medium in photography

thumb|Autoradiography of a coronal brain slice, taken from an embryonal rat. GAD67-binding marker is highly expressed in the [[subventricular zone.]] An autoradiograph is an image on an X-ray film or nuclear emulsion produced by the pattern of decay emissions (e.g., beta particles or gamma rays) from a distribution of a radioactive substance. Alternatively, the autoradiograph is also available as a digital image (digital autoradiography), due to the recent development of scintillation gas detectors or rare-earth phosphorimaging systems. The film or emulsion is apposed to the labeled tissue sec

Radiographers (radiologic technologists) are healthcare professionals who perform medical imaging and radiation therapy. Medical imaging is used for the diagnosis of pathology, while radiation therapy is used for treatment.

nondestructive testing method of inspecting materials

telescope designed to observe objects in the X‑ray band of the electromagnetic spectrum

Radiodensity (or radiopacity) refers to the degree of opacity to the radio wave and X-ray portion of the electromagnetic spectrum: that is, the relative inability of those kinds of electromagnetic radiation to pass through a particular material. Radiolucency or hypodensity indicates greater passage (greater transradiancy) to X-ray photons and is the analogue of transparency and translucency with visible light. Materials that inhibit the passage of electromagnetic radiation are called radiodense or radiopaque, while those that allow radiation to pass more freely are referred to as radiolucent.

branch of optics

advanced X-ray imaging technology

instrument that can detect x-rays

class of solid-state x-ray digital radiography devices

medical imaging technique

image intensifier that converts x-rays into visible light at higher intensity than the more traditional fluorescent screens can