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RAD456: Reg. Review Test

Enter the letter for the matching Answer
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1.
Late effects of radiation, whose incidence is dose related and for which there is no threshold dose, are referred to as?
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2.
Irradiation of water molecules within the body and their resulting breakdown is termed?
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3.
According to the NCRP, the annual occupational dose-equivalent limit (50 rem) to the thyroid, skin, and extremities is equal to how many mSv?
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4.
The unit used to express kinetic energy released in matter?
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5.
The reduction in the intensity of an x-ray beam as it passes through material is termed?
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6.
The SSD in mobile fluoroscopy must be at least how far?
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7.
What is the established annual occupational dose-equivalent limit for the lens of the eye?
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8.
The automatic exposure device that is located immediately under the x-ray table is the?
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9.
What cell type has the greatest radiosensitivity in the adult human body?
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10.
What is the term used to describe x-ray photon interaction with matter and the transference of part of the photon's energy to matter?
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11.
According to NCRP regulations, leakage radiation from the x-ray tube must not exceed what?
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12.
What is the effect on RBE as LET increases?
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13.
What unit of measure is used to express ionizing radiation dose to biologic material?
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14.
What percentage of public exposure to ionizing radiation is from medical sources?
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15.
An optically stimulated luminescence dosimeter contains what type of detector?
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16.
The annual dose limit for occupationally exposed individuals is valid for what types of radiation?
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17.
Occupational radiation monitoring is required when it is possible that the individual might receive more than how much radiation?
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18.
Filters used in radiographic x-ray tubes generally are composed of what?
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19.
A dose of 25 rad to the fetus during the seventh or eighth week of pregnancy is likely to cause what?
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20.
The x-ray interaction with matter that is responsible for the majority of scattered radiation reaching the image receptor is what type?
A.
Beta, x-rays, and gamma radiations Lange Q&A pg. 129
B.
Scattering Lange Q&A pg. 129
C.
Kerma Lange Q&A pg. 126
D.
Attenuation Lange Q&A pg. 130
E.
Ionization chamber Lange Q&A pg. 135
F.
500 Lange Q&A pg. 132
G.
150 mSv Lange Q&A pg. 126
H.
50% Lange Q&A pg. 125
I.
Rem (Sv) Lange Q&A pg. 130
J.
Lymphocytes Lange Q&A pg. 125
K.
As LET increases, RBE increases. Lange Q&A pg. 135
L.
100 mR/h Lange Q&A pg. 131
M.
Aluminum oxide Lange Q&A pg. 136
N.
Radiolysis Lange Q&A pg. 126
O.
A minimum of 12 inches Lange Q&A pg. 135
P.
Aluminum Lange Q&A pg. 136
Q.
1/10 of the annual dose limit Lange Q&A pg. 126
R.
Compton scatter Lange Q&A pg. 127
S.
Stochastic/probabilistic Lange Q&A pg. 131
T.
Neurologic anomalies Lange Q&A pg. 131

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