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9. Answer both parts of the question: a) Calculate the absorbed beta radiation dose rate and dose rate equivalent (μSv.hr) for administration of 2 μCi 32P to the breast, using the data supplied below. (15 marks) b) Taking the dose figure above, and neglecting radioactive decay losses and losses due to transfer of radioisotope to other deposition sites, metabolism etc, calculate the longest period that a person could safely retain 32P in the breast in a given year given the The World Health Organisation (WHO) limit below. Additional information: (WHO) upper safe limit is 500 μSv in each year for a Category 1 volunteer. 32P emits no gamma rays DATA: Mass of breast: 0.5 kg Modifying Factor (breast): 0.15 Mean energy of 32P beta particle: 0.6 MeV Quality of beta radiation: 1 1 MeV = 1.60 x 10-13 J 1 Ci 3.70 x 1010 Bq (5 marks) (Total 20 marks)

9. Answer both parts of the question: a) Calculate the absorbed beta radiation dose rate and dose rate equivalent (μSv.hr) for administration of 2 μCi 32P to the breast, using the data supplied below. (15 marks) b) Taking the dose figure above, and neglecting radioactive decay losses and losses due to transfer of radioisotope to other deposition sites, metabolism etc, calculate the longest period that a person could safely retain 32P in the breast in a given year given the The World Health Organisation (WHO) limit below. Additional information: (WHO) upper safe limit is 500 μSv in each year for a Category 1 volunteer. 32P emits no gamma rays DATA: Mass of breast: 0.5 kg Modifying Factor (breast): 0.15 Mean energy of 32P beta particle: 0.6 MeV Quality of beta radiation: 1 1 MeV = 1.60 x 10-13 J 1 Ci 3.70 x 1010 Bq (5 marks) (Total 20 marks)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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9. Answer both parts of the question: a) Calculate the absorbed beta radiation dose rate and dose rate equivalent (μSv.hr) for administration of 2 μCi 32P to the breast, using the data supplied below. (15 marks) b) Taking the dose figure above, and neglecting radioactive decay losses and losses due to transfer of radioisotope to other deposition sites, metabolism etc, calculate the longest period that a person could safely retain 32P in the breast in a given year given the The World Health Organisation (WHO) limit below. Additional information: (WHO) upper safe limit is 500 μSv in each year for a Category 1 volunteer. 32P emits no gamma rays DATA: Mass of breast: 0.5 kg Modifying Factor (breast): 0.15 Mean energy of 32P beta particle: 0.6 MeV Quality of beta radiation: 1 1 MeV = 1.60 x 10-13 J 1 Ci 3.70 x 1010 Bq (5 marks) (Total 20 marks)
Transcribed Image Text:9. Answer both parts of the question: a) Calculate the absorbed beta radiation dose rate and dose rate equivalent (μSv.hr) for administration of 2 μCi 32P to the breast, using the data supplied below. (15 marks) b) Taking the dose figure above, and neglecting radioactive decay losses and losses due to transfer of radioisotope to other deposition sites, metabolism etc, calculate the longest period that a person could safely retain 32P in the breast in a given year given the The World Health Organisation (WHO) limit below. Additional information: (WHO) upper safe limit is 500 μSv in each year for a Category 1 volunteer. 32P emits no gamma rays DATA: Mass of breast: 0.5 kg Modifying Factor (breast): 0.15 Mean energy of 32P beta particle: 0.6 MeV Quality of beta radiation: 1 1 MeV = 1.60 x 10-13 J 1 Ci 3.70 x 1010 Bq (5 marks) (Total 20 marks)
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