front 1 Automatic Exposure Control (AEC) | back 1 Terminates the exposure time when a certain quantity of radiation has been detected at the Image receptor. |
front 2 Bremsstrahlung Radiation | back 2 Radiation that is created when an electron enters the tungsten anode of the x-ray tube, misses the tungsten electrons, and gets very near the nucleus. |
front 3 Bucky | back 3 Contains a moveable grid device that absorbs scatter radiation and also contains the image receptor. |
front 4 Central Ray (CR) | back 4 The center of the x-ray beam and perpendicular to the long axis of the x-ray tube. |
front 5 Characteristic Radiation | back 5 Radiation that is created when an electron enters the tungsten anode of the x-ray tube and knocks out a K-shell electron. |
front 6 Collimation | back 6 The method of restricting and confiding the x-ray beam to a given area. |
front 7 Computed Radiography | back 7 A cassette-based digital imaging system where the image of the body part is obtained using storage phosphor plate. |
front 8 Digital Radiography (DR) | back 8 Cassetteless imaging system where the phosphor is bonded to a flat panel detector or the system converts x-ray energy directly to an electronic signal. |
front 9 Distortion | back 9 The differences between the actual subject and its radiographic image. |
front 10 Energy | back 10 The ability to do work. |
front 11 Exposure Indicator (EI) | back 11 A numeric value indicating the quantity of ionizing radiation received by a digital radiographic image receptor; also called an exposure index |
front 12 Fog | back 12 The unwanted image exposure caused by scatter radiation. |
front 13 Generator | back 13 Delivers the electrical power to the x-ray tube and permits the selection of x-ray energy, x-ray quantity, and exposure time. |
front 14 Image Receptor (IR) | back 14 The device that receives the energy of the x-ray beam and forms the image of the body part. |
front 15 Ionizing Radiation | back 15 Radiation that, when passing through the body, produces positively and negatively charged particles. |
front 16 Kilovolts Peak (kVp) | back 16 The unit of measure used to assess the voltage; controls the penetrating power of the x-ray beam. |
front 17 Line Focus Principle | back 17 The relationship between the actual focal spot on the anode surface and the effective focal spot size. |
front 18 Matter | back 18 Anything that occupies space and has a shape or form. |
front 19 Object-To-Image-Receptor Distance (OID) | back 19 The distance between the subject and the image receptor. |
front 20 Primary Radiation | back 20 The radiation that leaves the tube. |
front 21 Radiation Field | back 21 The squared area of the x-ray beam that strikes the patient and the x-ray table. |
front 22 Radiation Protection | back 22 The measures taken to safeguard patients, personnel, and the public from unnecessary exposure to ionizing radiation. |
front 23 Scatter Radiation | back 23 Radiation from the primary beam that is randomly scattered within or outside of the body. |
front 24 Source-To-Image-Receptor Distance (SID) | back 24 The distance between the tube target and the image receptor. |
front 25 Thermionic Emission | back 25 Electrons begin to "boil effect, "when the filament is heated. |
front 26 X-Ray Tube | back 26 The source of x-rays; the x-rays are formed within the x-ray tube. |