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Little jerrys Physic
Radiational Physics Note cards
| Question | Answer |
|---|---|
| Tomography is also known as ___ ___ ___? | Body Section Radiography (Tomography ppt. pg. 1) |
| Planigraphy is looking at a specific __ in the body? | Plane (Tomography ppt. pg. 2) |
| The fulcrum is the imaginary __ __ about which the tube film moves? | Pivot Point (Tomography ppt. pg. 3) |
| The tomographic angle determines the __ of the tomographic cut? | Thickness (Tomography ppt. pg. 4) |
| What colors does red goggles filter out? | Blue & Green (Bushong pg. 349) |
| What does the iris of the eye control? | Amount of light passing through the eye (Bushong pg. 348) |
| What happens when phosphor is hit by x-rays/energy? | Glows (Bushong pg. 351) |
| What is night vision referred to as? | Scotopic vision (Bushong pg. 348) |
| What gives all e⁻ the ability to travel the same distance to the Output phosphor? | Curved IP & PC Input phosphor/Photocathode (Flouroscopy ppt. pg 8) |
| When x-rays hit the IP (Input phosphor) what is produced? | Visible Light (Bushong pg. 350) |
| X-rays were initially discovered because of their ability to cause ___? | Fluorescence (Flouroscopy ppt. pg. 1) |
| Which is better at detecting differences in brightness? Cones or Rods? | Cones (ßushong pg. 348) |
| Fluoroscope was invented by __? | Thomas Edison (Bushong pg. 347) |
| How long did it take for radiologist to dark adapt their eyes? | 20-30 minutes (Bushong pg. 349) |
| The OP (output phosphor) produces ___ more light than the IP (Input phosphor)? | 50x (Fluoroscopy ppt. pg. 9) |
| Describe the Brightness gain equation? | BG = (MG)(FG) Brightness gain = Minification Gain x Flux gain (Bushong pg. 351) |
| What is the most popular trifield tube size? | 25/17/12 cm (Bushong pg. 352) |
| Define Vignetting? | Reduction in brightness at the periphery of the image (Bushong pg. 352) |
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FHCRAD
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