Problem: Tests on human subjects in Boston in 1965 and 1966, following the era of atomic bomb testing, revealed average quantities of about 2 pCi of plutonium radioactivity in the average person.If each alpha particle deposits 8 x 10 - 13 J of energy and if the average person weighs 76 kg , calculate the number of rads and rems of radiation in 4 yr from such a level of plutonium.

🤓 Based on our data, we think this question is relevant for Professor Strathman's class at IOWA.

FREE Expert Solution

1 Ci = 3.7 x 1010 disintegrations per second 

1 rad = 0.01 or 10-2 J/kg

1 rem = QF x rad

Biological damage factor (alpha particle) = 20


2 pCi×10-12 Ci1 pCi×3.7×1010 disintegrations per second1 Ci=0.074 disintegrations per second


Absorbed dose (rad):

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Problem Details

Tests on human subjects in Boston in 1965 and 1966, following the era of atomic bomb testing, revealed average quantities of about 2 pCi of plutonium radioactivity in the average person.

If each alpha particle deposits 8 x 10 - 13 J of energy and if the average person weighs 76 kg , calculate the number of rads and rems of radiation in 4 yr from such a level of plutonium.

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Based on our data, we think this problem is relevant for Professor Strathman's class at IOWA.