Jack was exposed to fast neutrons: he received a radiation dose of 280rem on par
ID: 1311113 • Letter: J
Question
Jack was exposed to fast neutrons: he received a radiation dose of 280rem on part of his hand, affecting 22.0grams of tissue. The relative biological effectiveness (RBE) of these neutrons is 10.0 How much radiation did Jack receive? Express your answer in rads to three significant figures. What was the total energy of the radiation Jack received? Express your answer in joules to three significant figures. Suppose Jill received the same rad dosage, but from beta rays with an RBE of 1.10 instead of from neutrons. What is the value of the equivalent dose she received?Explanation / Answer
1. Deq=D*(RBE)
Deq=280 RBE=10
Therefore D=Deq/RBE=280/10=28 rad
Jack will recieve 28 rad
2. 1 rad = .01 J/Kg
28(J/Kg)*.0022Kg= .00616J
3. Deq=28(rad) * 1.10
Deq = 30.8 rem
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