Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
RADT 456 EQ OP & QC
ARRT registry review covering equipment operation & quality control content area
| Question | Answer |
|---|---|
| What kind of radiation comprises 70-90% of the x-ray beam? | Bremsstrahlung; Pg. 431 |
| What is the principal factor affecting beam quantity? | mAs; Pg. 434 |
| What is the principal factor affecting beam quality? | kV; Pg. 434 |
| What is a relatively low-energy x-ray photon that uses all its energy to eject an inner shell electron, leaving an orbital vacancy? | Photoelectric effect; Pg. 434 |
| What is a fairly high-energy x-ray photon that ejects an outer shell electron? | Compton Scatter; Pg. 434 |
| What kind of interaction occurs between x-rays and matter with very low-energy x-ray photons - energies rarely used in diagnostic radiology? | Coherent (Classical) scatter; Pg. 435 |
| What functions to change mechanical energy to electrical energy? | Generators; Pg. 437 |
| What is characterized by varying amplitude and periodic reversal of polarity? | AC; Pg. 437 |
| Who made the observation that a magnetic field will induce an electric current in a conductor if there is motion of either the magnetic field or the conductor? | Faraday; Pg. 439 |
| In Bremsstrahlung radiation, energy loss is given up in what form? | X-ray photon; Pg. 444 |
| What is chosen for the target material because of its high atomic number, high melting point, and thermal conductivity? | Tungsten; Pg. 446 |
| What percent of the kinetic energy of the electron stream is converted to x-rays? | 0.2%; Pg. 447 |
| mA x s x kV (single phase) is the formula to solve for what? | Heat units; Pg. 448 |
| What cause of x-ray tube failure is caused by thermionic emission? | Vaporized tungsten; Pg. 449 |
| If an IP and its PSP storage plate has been stored and unused for _____ hours or more, the plate should be erased prior to use. | 48; Pg. 462 |
| Contrast modification, image subtraction, and windowing and all components of what? | Image manipulation postprocessing; Pg. 463 |
| T/F: Fewer frames per second result in lower patient dose. | True; Pg. 478 |
| How many minutes are on the timer that measures accumulated fluoroscopic examination time when the audible sound or interruption of exposure occurs? | 5 minutes; Pg. 478 |
| Selected kilovolt and actual kilovolt value should not differ by more than +/- what amount of kV for general diagnostic equipment? | +/- 4 kV; Pg. 494 |
| What device can be used to evaluate each mA station? | Aluminum step-wedge (penetrometer); Pg. 495 |
| The selected exposure time should be within what percent of the actual exposure time? | 5%; Pg. 495 |
| Digital radiation meter should register radiation output that does not vary more than what percent? | 5%; Pg. 496 |
| What is defined as the thickness of any absorber that will reduce x-ray beam intensity to one-half its original value? | Half-value Layer; Pg. 496 |
| What test uses the special wire-mesh test device to provide adequate screen care? | Screen-to-film contact testing; Pg. 497 |
Created by:
Kaci Gehlhausen
Popular Radiology sets