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1. Attenuation:
Describes changes in
a. is radiation that emerges from the patient the x-ray beam as it
travels through the
b. describes changes in the x-ray beam as it
patient
travels through the patient
c. produces only scatter radiation
d. occurs only at doses used in radiation
therapy
2. Which photon-tissue interaction makes
Photoelectric
radiography possible because of its creation
of image contrast?
a. Compton
b. Coherent
c. Photoelectric
d. Pair production
Compton
3. Which photon-tissue interaction produces
radiation that may expose others in the
room during fluo- roscopy?
a. Compton
b. Coherent
c. Photoelectric
d. Pair production
Gray
4. The SI unit of absorbed dose:
a. Coulombs/kilogram
b. Gray
c. Curie
d. Rad
, Radiologic Technology ARRT Review Questions & Answers For A+
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5. Becqueral
, Radiologic Technology ARRT Review Questions & Answers For A+
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The SI unit of radioactivity:
a. Becqueral
b. Rem
c. Quality factor
d. Curie
6. Measurement of positive and negative particles creat- Roentgen
ed when radiation ionizes atoms in the air:
a. Becquerel
b. Sievert
c. Roentgen
d. Curie
7. Linear energy transfer: Varies for ditterent
types of radiation
a. is the same for all types of radiation
b. is the same for wave and particulate radiations
used in diagnosis and treatment
c. occurs only during x-ray procedures
d. varies for different types of radiation
8. The unit of the curie would be used in what Nuclear Medicine
imaging modality?
a. Radiography
b. CT
c. MRI
d. Nuclear Medicine
9. The smallest particle of an element that Atom
retains the characteristics of the element:
, Radiologic Technology ARRT Review Questions & Answers For A+
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a. compound
b. atom
c. molecule
d. neutron
10. Atomic mass refers to: Number of protons
plus number of
a. the number of protons plus the number
neutrons
of neu- trons
b. the number of electrons plus the number
of pro- tons
c. the number of electrons plus the number
of neu- trons
d. the number of protons
11. X-rays travel as a bundles of energy called:
Photons
a. protons
b. phasers
c. particles
d. photons
12. The height of a sine wave:
Amplitude
a. wavelength
b. altitude
c. amplitude
d. frequency
13. The number of x-ray waves passing a given
point per unit of time: Frequency
a. wavelength