History & Legislation
This Scientist Discovered X-rays in 1895
Who is Wilhelm Roentgen?
The center of an atom is known as the?
What is the nucleus?
The radiation protection philosophy meaning radiation exposures should be kept as low as reasonably achievable is known as what?
What is ALARA?
All electromagnetic radiation travels at this speed in a vacuum.
What is the speed of light?
Any electric charge in motion produces this.
What is a magnetic field?
This innovation allowed x-ray intensity and energy to be controlled independently.
What is the Coolidge Tube?
The number of protons in the nucleus is indicated by the?
What is the atomic number?
The SI unit used to assess biological risk from radiation exposure is what?
What is the Sievert (Sv)?
As frequency increases, this property decreases.
What is wavelength?
This law states that electrostatic force is proportional to the product of the charges and inversely proportional to the square of the distance.
What is Coulomb's Law?
This imaging modality uses a rotating x-ray tube and detector array to reconstruct images in multiple planes.
What is Computed Tomography (CT)?
Atoms with the same number of protons but different numbers of neutrons are known as what?
What are isotopes?
The annual whole-body occupational dose limit for radiation workers in Canada is what?
What is 20 mSv?
Photon A = 2 × 10¹⁸ Hz, Photon B = 4 × 10¹⁸ Hz. Which has more energy?
What is Photon B?
A changing magnetic field near a conductor produces this.
What is an induced current?
This document is the first place an MRT should look for Canadian medical radiation protection legislation.
What is Safety Code 35?
The sum of protons and neutrons in a nucleus is known as what?
What is the mass number?
The effective dose limit for the remainder of a declared pregnancy in Canada is what?
What is 4 mSv?
An 80 kVp exposure produces x-ray photon energies ranging from approximately:
What is 0–80 keV?
This transformer produces approximately 100,000 volts for x-ray production.
What is a step-up transformer?
This historical advancement allowed real-time imaging of internal structures.
What is Fluoroscopy?
This atom requires more energy to remove a K-shell electron: Carbon or Barium?
What is Barium?
A student MRT approaches 1 mSv occupational exposure. What should occur?
The exposure should be reviewed because students are expected to follow public dose limits.
Moving from 1 m to 2 m from an x-ray source changes radiation intensity by this factor.
What is one-quarter?
If stator coils fail to energize properly, this component cannot rotate.
What is the rotor (anode assembly)?