Internal Dosimetry

Internal Dosimetry

 

Name:                                                     

 

For this exam, use the data provided.

 

1. Draw the complete kinetic model (compartments, transfer routes, etc.) for the distribution and retention of ingested elemental zinc as assumed by ICRP 26/30. (10 pts)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Write the retention function that is appropriate for elemental zinc reaching “other organs and tissues”. (10 pts)

 

 

 

 

 

 

 

3. Write the retention function that is appropriate for elemental zinc reaching the skeleton. (10 pts)

 

4. Calculate the Us from oral ingestion of 65Zn for the “other organs and tissues” over 50 years from an oral intake of 1E7 Bq. (25 pts)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Calculate the SEE for 65Zn for the “other organs and tissues” to the total body from oral intake, limited to contributions from positrons and gammas only. (25 pts)

 

 

6. Calculate the dose equivalent (Sv) to the total body based upon the values determined in questions 4 and 5 above. (10 pts)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. Compare your results with the value listed for the ALI (stochastic) for 65Zn orally ingested in the data provided. Identify two reasons for any differences between the two. (10 pts)

 

NSE 590 Winter 2018 Final Exam                                                                                                                                    5 of 8

 

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