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20 Cards in this Set

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What two units represent the amount of activity?

Which one is the SI unit?
Bq, Becquerel, SI unit
Ci, Curie
What does dps stand for?
disintegrations per second
How many dps are there in a Bq?
1
How many dps are there in 1 Ci?
3.7 * 10^10 dps
The Curie and Becquerel measure ____________.
The amount of radiation.
If someone wants to measure the exposure from radiation, they would use what 2 units? Which one is the SI unit?
The Roentgen (R) and coulombs per kg (this is the SI unit)
Measuring the number of ions per mass is a measure of ______________.
Exposure
Measuring how much energy was deposited per mass is a measure of _____________.
Absorbed dose
Measuring how much energy was deposited per mass with consideration for what type of radiation and what type of tissue is a measure of _____________.
equivalent dose
What are the units for absorbed dose? Which one is the SI unit?
SI: Gy, the gray
rad, radiation absorbed dose
What is the unit for equivalent dose? Which one is the SI unit?
SI: Sv, the Sievert
rem, Roentgen Equivalent Man
What measurement is used to describe the degree of biological effect produced by different types of radiation at the same absorbed dose.
RBE, Relative Biological Effectiveness
T/F. The RBE is usually calculated from some reference standard.
True, it is usually gamma rays from Cobalt-60 (1.25 MeV)
What does A tilde mean and what are its units?
What does A tilde mean and what are its units?
It is the cumulated activity in the region of ineterst. Its unit is microCurie hr.
What is S in the MIRD equation and what are its unit?
What is S in the MIRD equation and what are its unit?
S is the mean dose/unit cumulated activity. Its unit is (rad/microCi hr)
What is D in the MIRD equation and what is its unit?
What is D in the MIRD equation and what is its unit?
Absorbed dose. Its unit is the rad.
What do the 't' and 's' subscripts mean on the 'r'?
What do the 't' and 's' subscripts mean on the 'r'?
target organ, source organ respectively.
What does H-sub-T, D and W-sub-R stand for?
What does H-sub-T, D and W-sub-R stand for?
H-sub-T is the symbol for the equivalent dose.
D is the absorbed dose in rad.
W-sub-R is the radiation weighting factor.
What does E and W-sub-T stand for?
What does E and W-sub-T stand for?
E is the symbol for Effective dose.
W-sub-T is the tissue weighting factor.
When you want to measure the intensity of the radiation at its source you would use which two units?
Becquerel and Curie