ANSWER KEY Exam 1

5 points 1 gy 1 joulekg 1 gy 100 rad 1 rad 100

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Unformatted text preview: ows the typical spectrum of X- rays coming from the X- ray tube; (B) and also describe (or sketch out) the specific processes that cause the classes of X- rays in graph A. A. B. Characteristic X- Rays X- ray spectrum Bremsstrahlung, Braking Radiation Wavelength 4. (5 points) (1 Gy = 1 Joule/Kg; 1 Gy = 100 rad; 1 rad = 100 erg/g) Suppose a 75 kg man received a whole body absorbed dose of 5 Gy. This whole body dose would be lethal to most humans. If the same amount of energy was instead absorbed by a 2.5 kg Chihuahua, what would be the absorbed dose received by the dog? Would the dog likely survive this whole body dose or not? or more simply: 5 Gy = Energy J / 75 Kg in man Energy = 5 J/Kg x 75 kg = 375 J Man is 30 times larger than dog (75Kg / 2.5Kg), therefore dose absorbed by dog should be 30 375 J in a 2.5 Kg dog = 375 J/2.5 Kg Absorbed dose in dog = 150 Gy times larger for the same overall energy: 30 x 5 Gy = 150 Gy. 5. (10 points) In o...
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This document was uploaded on 02/28/2014 for the course ERHS 300 at Colorado State.

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