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RE FINAL REVIEW
Radiography Essentials Final Review
Question | Answer |
---|---|
National organization that accredits Radiography Schools. | JRCERT |
Medical X-rays were discovered by? | Wilhelm Roentgen |
A Doctor who specializes in Radiology | Radiologist |
Organization that establishes standards and exams to certify Radiologic Technologists. | ARRT |
Oldest and largest radiological science professional organization | ASRT |
Radiation that exits the opposite side of the patient to expose the film is called? | Remnant Radiation |
Term used to describe radiation that is absorbed by matter is? | Attenuation |
The "unseen" image that is contained in the film before it is processed | Latent Image |
Radiation that exits the body in all directions and causes unwanted exposure on the film | Scattered Radiation |
Boxlike device attached under the tube housing that allows the LXMO to vary the radiation field size | Collimator |
Process of causing the AC to flow in one directions only is called? | Rectification |
Formula for determining mAs? | mA X Time = mAs |
The Electron shell in the atom most important for the production of x-rays? | K |
Thin plate that is placed between patient and IR when larger body parts are being x-rayed? | Grid |
Greatest portion of the x-ray beam is made up of what type of radiation? | Bremstrahlung Radiation |
What is varied automatically when using automatic exposure control (AEC)? | Exposure |
Primary controller of radiographic density | mAs |
Primary factor controlling contrast and x-ray penetration | kVp |
"Fuzzy" unsharpness at edges of body parts on an radiograph is called? | Penumbra |
Term used to describe a grainy or mottled image | Quantum Mottle |
Spectral sensitivity of the film must be matched to? | The color of the light emitted by the screen |
The digital images made in the X-ray Department are stored in a system called? | PACS |
The special type of filter used in the darkroom in the safelight | GBX |
Wattage Range of the safelight bulb | 7-15 Watts |
What is the negative effect of scatter radiation reaching the film? | Fog |
A grid must be used when a body part becomes larger than what? | 10-12cm |
What term describes what happens when a grid is tilted? | Grid Cutoff |