X The greatest concentration of iodine in the body is in the thyroid gland, so radioactive iodine-131 is often used as a tracer to help diagnose thyroid problems. Suppose the activity of 131 in a patient's thyroid is initially 1.85 × 106 Bq. 131₁ decays via beta radiation with an average energy of 180.0 keV per decay. Calculate the absorbed dose in sieverts the patient's thyroid receives in the first hour of exposure. Assume that half of the radiation is absorbed by the thyroid gland, which has a mass of 29.0 g. The relative biological effectiveness for beta radiation is 1.00 Sv/Gy. Sv
X The greatest concentration of iodine in the body is in the thyroid gland, so radioactive iodine-131 is often used as a tracer to help diagnose thyroid problems. Suppose the activity of 131 in a patient's thyroid is initially 1.85 × 106 Bq. 131₁ decays via beta radiation with an average energy of 180.0 keV per decay. Calculate the absorbed dose in sieverts the patient's thyroid receives in the first hour of exposure. Assume that half of the radiation is absorbed by the thyroid gland, which has a mass of 29.0 g. The relative biological effectiveness for beta radiation is 1.00 Sv/Gy. Sv
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Transcribed Image Text:The greatest concentration of iodine in the body is in the
thyroid gland, so radioactive iodine-131 is often used as a
tracer to help diagnose thyroid problems. Suppose the
activity of 1311 in a patient's thyroid is initially 1.85 × 106 Bq.
1311 decays via beta radiation with an average energy of
180.0 keV per decay. Calculate the absorbed dose in
sieverts the patient's thyroid receives in the first hour of
exposure. Assume that half of the radiation is absorbed by
the thyroid gland, which has a mass of 29.0 g. The relative
biological effectiveness for beta radiation is 1.00 Sv/Gy.
Sv
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