LRA 211 Radiology: Questions & Answers
The earliest atomic theory based on an arrangement similar to the solar system is attributed to (Ans- Rutherford
The three fundamental particles of the atom are the (Ans- neutron, proton, electron
The atomic nucleus contains (Ans- neutrons and protons
The component of the nucleus that has a positive charge and mass is the (Ans- proton
The electron shell closest to the nucleus is lettered (Ans- "k"
What is not part of the electromagnetic spectrum?(Ans- sound
Which of the electromagnetic radiations have the lowest energy level?(Ans- radio waves
As the wave's frequency increases, the wavelength (Ans- decreases
Frequency is typically measured in (Ans- Hertz
The process of removing an electron from an atom is (Ans- ionization
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X-rays are produced from (Ans- fast moving electrons
Which of the following helps to keep the x-ray tube cool on the inside of the protective housing?(Ans- oil bath and cooling fan
In terms of the x-ray tube, envelope is another name for the (Ans- glass or metal enclosure
The positive end of the x-ray tube is the (Ans- anode
The negative end of the x-ray tube is the (Ans- cathode
The area of the envelope where x-rays should exit the tube is the (Ans- target window
The anode serves as a(n) (Ans- target for the electron interaction to produce x-ray, electrical conductor, heat conductor.
The two types of anode designs are (Ans- stationary and rotating
Tungsten is used to coat the anode disc because it (Ans- has a high atomic number
With a rotating anode, the focal spot becomes a focal (Ans- track
X-rays are produced by (Ans- characteristic and bremsstrahlung interactions.
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