Exposure Rate, Dose Rate, Source Strength, TG-43, and Accumulated Dose Flashcards

1
Q

The exposure rate equation is

A
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2
Q

The equivalent mass of Ra (MRa) for a particular isotope is given by

A
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3
Q

The traditionally dose rate in a medium is given by

A
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4
Q
A
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5
Q

It is now recommended that the quantity air kerma strength (Sk) be used to

A

specify the strength of brachytherapy sources.

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6
Q

The air kerma strength is defined as

A
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7
Q

The units of air kerma strength (Sk) are

A

U = cGy h-1 cm2

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8
Q

The AAPM Task Group 43 formalism is now recommended for

A

interstitital brachytherapy.

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9
Q

The dose rate according to TG 43 is

A
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10
Q
A
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11
Q

For a temporary implant the total accumulated dose after a time t is

A
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