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WorksheetsRDBG LO2: LS 1, 2, 3
Total questions: 11
Worksheet time: 6mins
Students follow the same dose limits as which group?
Members of public
Radiation workers
No dose limit
Pregnant radiation workers
The annual whole body dose limit for radiation workers is:
20mSv
40mSv
10mSv
4mSv
Radiation workers who are likely to risk receiving ___% or more of the annual occupational EfD limit of 20mSv in any single year are required to be issued a dosimeter
25%
10%
1%
5%
Which cells are the most sensitive to radiation?
Lymphocytes
Nerve cells
Erythrocytes (RBC)
Brain cells
Which type of cells are the least sensitive to radiation?
Epithelial cells
Nerve cells
Erythrocytes (RBC)
Muscle cells
The Law of Bergonie and Tribondeau states that the radiosensitivity of cells is _____.
Directly proportional to reproductive activity
Inversely proportional to reproductive activity
Inversely proportional to degree of differention
Directly proportional to maturity
Biologic tissue is less sensitive to radiation when it is exposed under oxygenated conditions
True
False
RBE stands for:
Real Biological Effect
Relative Biological Effectiveness
Random Biologic Effect
Relative Beam Energy
This type of dosimeter uses lithium fluoride crystals as the detecting material
TLD
OSLD
Pocket Ionization Chamber
Cutie Pie
This type of personnel dosimeter is read by a laser light and can undergo re-analysis to confirm radiation exposure received
TLD
OSLD
Pocket Ionization Chamber
GM Survey Meter
What does the shoulder portion of the cell survival curve for low-LET radiation exposure indicate?
