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RAD 201PM EXAM 1

Chapter 1-5

QuestionAnswer
Which is a method of explaining radiation to the public? BERT
Which radiation quantity is intended to be the best overall measure of the biologic effects of ionizing radiation? Effective dose
Form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of normal matter through which it passes. Ionizing radiation
What unit is used to measure radiation exposure in the metric International System of Units? Coulomb per kilogram
The millisievert (mSv) is equal to: 1/1000 of a sievert.
Another term for coherent scattering. Characteristic
The x-ray photon energy required to initiate pair production is 1.022 MeV.
Which interactions between x-ray photons with matter involve a matter–antimatter annihilation reaction? Pair production
Compton scattering is synonymous with incoherent scattering.
Particles associated with electromagnetic radiation that have neither mass nor electric charge and travel at the speed of light are x-ray photons
Fluorescent radiation is also known as characteristic radiation.
In therapeutic radiology what SI units are now routinely used to specify absorbed dose? Gray and centigray
In the SI system, an energy absorption of 1 J/kg of matter in the irradiated object equals which of the following? 1 Gy
Who discovered x-rays on November 8, 1895? Wilhelm Conrad Roentgen
Alpha particles have a radiation weighting factor (WR) that is numerically equal to 20
Which of the following is essentially the sum total of air kerma over the exposed area of the patient’s body surface? Dose area product
How is dose area product usually specified? In units of mGy-cm2
Created by: bmairet
 

 



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