4. Radiation and the Inverse Square Law a) Explain why radiation intensity may deviate from the Inverse Square Law closer to a radioisotope source. [AMNE 45 words] (3) b) Calculate the activity of an 22 Na source, which gives a dose rate of 3.0 rem/hr at a distance of 1.0 m. 22 Na emits one gamma photon of energy 1.28 MeV per disintegration. (5) 8
4. Radiation and the Inverse Square Law a) Explain why radiation intensity may deviate from the Inverse Square Law closer to a radioisotope source. [AMNE 45 words] (3) b) Calculate the activity of an 22 Na source, which gives a dose rate of 3.0 rem/hr at a distance of 1.0 m. 22 Na emits one gamma photon of energy 1.28 MeV per disintegration. (5) 8
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter32: Radiochemical Methods
Section: Chapter Questions
Problem 32.21QAP
Related questions
Question
Please correct answer and don't use hand raiting
![4. Radiation and the Inverse Square Law
a) Explain why radiation intensity may deviate from the
Inverse Square Law closer to a radioisotope source. [AMNE 45 words]
(3)
b) Calculate the activity of an 22 Na source, which gives
a dose rate of 3.0 rem/hr at a distance of 1.0 m.
22
Na emits one gamma photon of energy 1.28 MeV per disintegration.
(5)
8](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd6e86aa0-b62b-409a-a928-e8f13ee29045%2F065c8d7d-c302-4823-b937-ebc3ef06e939%2F537pob_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. Radiation and the Inverse Square Law
a) Explain why radiation intensity may deviate from the
Inverse Square Law closer to a radioisotope source. [AMNE 45 words]
(3)
b) Calculate the activity of an 22 Na source, which gives
a dose rate of 3.0 rem/hr at a distance of 1.0 m.
22
Na emits one gamma photon of energy 1.28 MeV per disintegration.
(5)
8
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