Calculating Cs-137 Flux and Fall-Off at Various Heights in a 10 km Field

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SUMMARY

The discussion focuses on calculating the Cs-137 flux and its fall-off at various heights above a 10 km diameter field with a uniform surface deposition of 100 Curries. The center line flux is to be determined at heights of 1 meter, 10 meters, 100 meters, and 1000 meters. The key approach involves integrating the deposition over the specified heights to understand how the flux decreases as the distance from the source increases.

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  • Understanding of radioactive decay and flux calculations
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arpee63
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A Cs-137 cloud deposits 100 Currie’s on farmer John’s field which is 10 km in diameter. What is the center line flux at one meter above the ground? Recalculate flux if you are 10 meters, 100 meters, and 1000 meters above the ground? How does the flux fall off as a function of distance?

One of my homework problems I'm not sure how to do. Can anybody help me? or start me off in the right direction
 
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Hi there,

You have to suppose a uniform surface deposition. From there, with a scheme of the situation, you should see that you need to simply integrate.

Cheers
 

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