Exposure Rate, Dose Rate, Source Strength, TG-43, and Accumulated Dose Flashcards
1
Q
The exposure rate equation is
A
2
Q
The equivalent mass of Ra (MRa) for a particular isotope is given by
A
3
Q
The traditionally dose rate in a medium is given by
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4
Q
A
5
Q
It is now recommended that the quantity air kerma strength (Sk) be used to
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specify the strength of brachytherapy sources.
6
Q
The air kerma strength is defined as
A
7
Q
The units of air kerma strength (Sk) are
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U = cGy h-1 cm2
8
Q
The AAPM Task Group 43 formalism is now recommended for
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interstitital brachytherapy.
9
Q
The dose rate according to TG 43 is
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10
Q
A
11
Q
For a temporary implant the total accumulated dose after a time t is
A