Average Dose Rate of 1.11x108 Bq 131I in Thyroid

In summary, the dose rate of 1.11x108 Bq 131I in thyroid is significant as it represents the average amount of radiation exposure to the thyroid gland over a specific time period. It is measured using a dosimeter and can be affected by factors such as proximity to a radiation source, duration of exposure, and age and health. Exposure to this dose rate can increase the risk of thyroid cancer and other health effects, but it can be reduced through limiting exposure and implementing protective measures. Prompt medical treatment and follow-up can also help mitigate potential health effects.
  • #1
xamy
27
0

Homework Statement


A patient receives an injection of 1.11×108 Bq of 131I,30% of which goes to the thyroid, having a mass of 20 g.What is the average dose rate in the organ?


Homework Equations


D=1.60×10–10AE Gy s–1

The Attempt at a Solution

A=(1.11x108x(30/100))/20=1.665x106Bqg-1

E=0.192Mev

=1.60x10-10 (1.665)(0.192Mev)

= 51μGy s–1

This is my solution. Can anyone point out the mistake here.
 
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  • #2
xamy said:
=1.60x10-10 (1.665)(0.192Mev)

What happened to the factor 10^6 you had in calculating A?
 

Related to Average Dose Rate of 1.11x108 Bq 131I in Thyroid

1. What is the significance of the dose rate of 1.11x108 Bq 131I in thyroid?

The dose rate of 1.11x108 Bq 131I in thyroid is significant because it represents the average amount of radiation exposure that an individual's thyroid gland will receive over a specific period of time. This is important because exposure to radiation can have detrimental effects on the thyroid gland and can increase the risk of developing thyroid cancer.

2. How is the average dose rate of 1.11x108 Bq 131I in thyroid measured?

The average dose rate of 1.11x108 Bq 131I in thyroid is measured using a dosimeter, which is a device that can detect and measure radiation. The dosimeter is placed near the thyroid gland to measure the amount of radiation that is being absorbed by the gland over a specific time period.

3. What factors can affect the average dose rate of 1.11x108 Bq 131I in thyroid?

The average dose rate of 1.11x108 Bq 131I in thyroid can be affected by a number of factors, including the individual's proximity to a source of radiation, the duration of exposure, and the individual's age and general health. Other factors such as shielding and protective measures can also impact the dose rate.

4. What are the potential health effects of being exposed to an average dose rate of 1.11x108 Bq 131I in thyroid?

Exposure to an average dose rate of 1.11x108 Bq 131I in thyroid can increase the risk of developing thyroid cancer, as well as other health effects such as thyroid nodules, hypothyroidism, and hyperthyroidism. The severity of these effects will depend on the individual's overall health and the duration and intensity of the exposure.

5. How can the average dose rate of 1.11x108 Bq 131I in thyroid be reduced?

The average dose rate of 1.11x108 Bq 131I in thyroid can be reduced by limiting exposure to sources of radiation and by implementing protective measures such as shielding and monitoring. In cases where exposure has already occurred, prompt medical treatment and follow-up can also help reduce the potential health effects.

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