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51 term words
| Term | Definition |
|---|---|
| ALARA concept | The concept of radiation protection that states that all exposures should be kept "as low as reasonably achievable" |
| Ampere | A unit of electric current |
| Anode | The positive electrode in the x-ray tube |
| Atom | The basic unit of matter |
| Bremsstrahlung radiation | "Breaking radiation", the sudden deceleration of electrons as they interact with highly positively charged nuclei |
| Cathode | The negative electrode in the x-ray tube |
| Central ray | X-ray at the center of the beam |
| Contrast | Differences in degrees of blackness on an image |
| Control panel | The portion of the x-ray unit that contains the master switch, the indicator light, the selector buttons, and the exposure button |
| Density | The overall darkness of blackness of an image |
| Dental radiography | The process of recording images of the teeth and adjacent structures by exposure to radiography |
| Digital imaging | A filmless method of capturing an image and displaying it by using an image receptor, an electronic signal, and a computer to process and store the image |
| Distortion | Change in the size of an image caused by incorrect vertical angulation |
| Dose (of radiation) | The amount of energy absorbed by tissues |
| Dosimeter | A device used to detect and measure an accumulated dosage of radiation |
| Electron | A negatively charged particle in the atom |
| Energy | The ability to do work |
| Extension arm | A flexible arm that is attached to the x-ray tubehead |
| Genetic effects | The effects of radiation that are passed on to future gernerations through genetic cells |
| Image | Film-based or digitally produced recordings of an image, normally film, phosphor storage plate, or a conventional sensor |
| Intensity | The total energy of the x-ray beam |
| Ion | An electrically charged particle |
| Ionization | The process by which electrons are removed from atoms, causing the harmful effects of radiation in humans |
| Ionizing radiation | Radiation that produces ionization, resulting in harmful effects |
| Kilovoltage peak (kVP) | The highest voltage of x-ray tube used during an radiograph |
| Latent period | The time between exposure to ionizing radiation and the appearance of image |
| Lead apron | a device used to protect the reproductive and blood-forming tissues from scatter radiation |
| Magnification | The proportional enlargement of an image |
| Master switch, indicator light, selector buttons, exposure button | Components of the control panel |
| Matter | anything that occupies space and has form or shape |
| Milliampere (MA) | One one-thousandth (1/1000) of an ampere; a unit of measurement used to describe the intensity of an electrical current |
| Penumbra | The blurred of indistinct area that surrounds an radiograph |
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