| Question | Answer |
| Concept of radiation protection that all exposures should be kept as low as reasonably achievable | ALARA Concept |
| The positive electrode in the xray tube | Anode |
| The basic unit of matter | Atom |
| The negative electrode in the x-ray tube. | Cathode |
| X-rays at the center of the beam | Central ray |
| Differences in degrees of blackness on a radiograph | Contrast |
| The portion of the x-ray unit that contains the master switch, the indicator light, the selector buttons, and the exposure button. | Control Panel |
| The overall darkness and blackness of a radiograph | Density |
| The process of making radiographs of the teeth and adjacent structures by exposure to radiographs. | Dental radiography |
| Change in the size of an image on a radiograph caused by incorrect vertical angulation | Distortion |
| The amount of energy absorbed by tissues | Dose (of radiation) |
| A negatively charged particle in the atom. | Electron |
| The ability to do work | Energy |
| Flexible arm that is attached to the x-ray tube | Extension Arm |
| Effects of radiation that are passed on to future generations through genetic cells | Genetic Effects |
| An electrically charged particle | Ion |
| Process by which electrons are removed from atoms, causing the harmful effects of radiation in humans | Ionization |
| Radiation that produces ionization, resulting in harmful effects | Ionizing Radiation |
| Highest voltage of radiograph tube used during a radiograph exposure | Kilovoltage Peak |
| Time between exposure to ionizing radiation and appearance of symptoms | Latent Period |
| Device used to protect the reproductive and blood-forming tissues from scatter radiation. | Lead Apron |
| the proportional enlargement of a radiograph image | Magnification |
| Components of control panel | Master Switch, Indicator Light, Selector Buttons, Exposure Button |
| Anything that occupies space and has form or shape | Matter |
| One one-thousandth (1/1000) of an ampere, a unit of measurement used to describe the intensity of an electrical current | Milliampere |
| the blurred or indistinct area that surrounds the image | Penumbra |
| A minute (tiny) bundle of pure energy that has no weight or mass. | Photon |
| The most penetrating beam produced at the target of the anode. | Primary Beam |
| Same as primary beam | Primary Radiation |
| Forms of waves of energy emission through space or material | Radiation |
| Image produced on photosensitive film by exposing the film to radiation and then processing it. | Radiograph |
| the science or study of radiation as used in medicine | radiology |
| A form of secondary radiation that occurs when an x-ray beam has been deflected from its path by interaction with matter | Scatter Radiation |
| X-radiation that is created when the primary beam interacts with matter. | Secondary Radiation |
| A measure of how well the radiograph reproduces the fine details or outlines of an object | Sharpness |
| Effects of radiation that cause illness and are responsible for poor health but are not passed on to offspring | Somatic Effects |
| A flexible lead shield that is placed securely around the neck | Thyroid Collar |
| The part of the x-ray unit that contains the x-ray tube, the high-voltage and low-voltage transformers, and insulating oil | Tubehead |
| A focal spot in the anode | Tungsten Target |
| High-energy ionizing electromagnetic radiation | X-radiation |
| Device that automates all film processing steps | Automatic Processor |
| Assists in the positioning of the position indicator device (PID) | Beam Alignment Device |
| Radiographic view that shows the crowns of both arches on one film | Bitewing |
| Common type of phosphor | Calcium Tungstate |
| Holder for extraoral films during exposure | Cassette |
| Shows the bony and soft tissue areas of the facial profile | Cephalometric Film |
| Film designed for use in film duplicating machines | Duplicating film |
| A coating on the x-ray film that contains energy-sensitive crystals | Emulsion |
| Film designed for use in cassettes | Extraoral Film |
| Device used to convert x-ray energy into visible light, which in turn exposes screen film | Intensifying Screen |
| Film designed for placement in the patient's mouth | Intraoral Film |
| Colored side of the film that faces the tongue | Label Side |
| The invisible image on the x-ray film after exposure but before processing | Latent Image |
| Radiographic view that shows large areas of the maxilla or mandible | Occlusal |
| Provides a wide view of the upper and lower jaws. | Panoramic Film |
| A series of steps that change exposed film into a radiograph. The steps include developing, rinsing, fixing, washing and drying | Processing |
| Image produced on photosensitive film by exposing the film to radiation and then processing it. | Radiograph |
| Solid white side of the film that faces the x-ray tube. | Tube Side |
