Exam 1
Radio waves, light, and x-rays are all examples of what type of energy?
What is electromagnetic?
T or F: Soft tissue absorbs more radiation and produces more scatter than bone?
What is False?
What unit of measure is used for matter?
What is kilograms?
What is the most common target angle in diagnostic radiography?
What is 12 degrees?
A 60 watt lightbulb operates on 120V household voltage w/ 0.5amps. What is the resistance in the circuit?
What is 240 ohms?
45mA are equal to _______ Amp(s)?
What is 0.045A?
What is the exact point on the anode where the x-ray beam emanates from?
What is the focal spot?
What letter is used to symbolize the atomic mass number?
What is A?
Like charges ___________ and unlike charges ____________.
What is repel, attract?
50,000 Volts = ____________ kilovolts.
What is 50 kV?
Electrification occurs through the movement of what?
What are electrons?
Under which side of the x-ray tube should the thicker anatomical portion of the anatomy be positioned and why?
What is the Cathode end because of the anode heel effect?
What three particles are the fundamentals of an atom?
What is Proton, Electron and Neutron?
If total resistance in a circuit is 10ohms and the total voltage is 120Volts, what is the current?
What is 12Amps?
50,000 millimeters = ___________ kilometers
What is 0.05km?
How are x-rays usually identified?
What is by their energy?
How does beam filtration affect patient dose?
What is it lowers dose by removing low-energy photons?
What is the smallest unit of electrical charge?
What is an electron?
What does an atom become when it loses or gains one or more electrons?
What is an ion?
1 kilovolt = ____________ Volts
What is 1000 Volts?
What letter symbolized the innermost electron shell?
What is K?
Where does most of the inherent filtration come from in typical x-ray equipment?
What is the window of the glass envelope?
An element w/ a Z# of 22 has how many electrons in the first principal quantum number level (K shell)?
What is 2?
Where is the kVp control found in the x-ray circuit?
What is between the incoming line & the exposure switch?
0.03 Sieverts = _______________ milliSieverts
What is 30 mSv?