Podcast
Questions and Answers
1 R is equal to 0.00258 C/kg.
1 R is equal to 0.00258 C/kg.
False
The exposure rate constant is 4.69 Rcm²h⁻¹mCi⁻¹ for an Iridium point source.
The exposure rate constant is 4.69 Rcm²h⁻¹mCi⁻¹ for an Iridium point source.
True
The air kerma rate constant is used to determine absorbed dose.
The air kerma rate constant is used to determine absorbed dose.
True
The activity of a point source is typically measured in Bq.
The activity of a point source is typically measured in Bq.
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The exposure rate at a distance of 100 cm from a 50 mCi point source of Iridium is 0.02345 R/hr.
The exposure rate at a distance of 100 cm from a 50 mCi point source of Iridium is 0.02345 R/hr.
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The dose distribution method uses the air kerma rate constant to calculate absorbed dose.
The dose distribution method uses the air kerma rate constant to calculate absorbed dose.
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The gamma ray constant is used to calculate the exposure rate at a distance from a point source.
The gamma ray constant is used to calculate the exposure rate at a distance from a point source.
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The conversion factor from conventional units to SI units is 1.0 Rcm²h⁻¹mCi⁻¹ = 1.94 x 10⁻¹⁹ Ckg⁻¹m²s⁻¹Bq⁻¹.
The conversion factor from conventional units to SI units is 1.0 Rcm²h⁻¹mCi⁻¹ = 1.94 x 10⁻¹⁹ Ckg⁻¹m²s⁻¹Bq⁻¹.
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The ICRU recommends the use of the exposure rate constant in radiation dosimetry.
The ICRU recommends the use of the exposure rate constant in radiation dosimetry.
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The dose distribution method can only be used with point sources of Iridium.
The dose distribution method can only be used with point sources of Iridium.
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