MARSSIM Final Status Survey Design: Determining the Need for ...
MARSSIM Final Status Survey Design: Determining the Need for ...
MARSSIM Final Status Survey Design: Determining the Need for ...
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Determine Additional Sample <strong>Need</strong>s<br />
<strong>for</strong> 30% Am and 70% Co (cont.)<br />
• DCGL W <strong>for</strong> 30% Am/70% Co = 4.8 pCi/g<br />
• AFs also generated <strong>for</strong> this mixture; <strong>the</strong> AF<br />
<strong>for</strong> 100 m 2 (initial a') a<br />
is 1.22<br />
• Required scan MDC: (4.8)(1.22) = 5.9<br />
pCi/g – need more samples<br />
• New AF = 7.8/4.8 = 1.62; new a' is 29m 2 ;<br />
new sample size = 1500/29 = 52 samples<br />
15
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