In the RES-2 Unit risk category, what does A+B <= 100 cGy represent?

In the RES-2 Unit risk category, what does A+B <= 100 cGy represent?

• A. A+B <= 200 cGy
• B. A+B <= 50 cGy
• C. A+B <= 100 cGy
• D. A+B <= 300 cGy

Answer: (C)

In RES-2, the assessment looks at the two most exposed people and adds their absorbed doses to gauge overall risk. The A and B represent those two individuals, and A+B is the total dose they collectively receive. The boundary for staying within this RES-2 category is that their combined dose must be 100 cGy or less. So, A+B <= 100 cGy expresses this limit: if the sum is at or below 100 cGy, the situation fits RES-2; if it were higher, it would push into a more restrictive risk category requiring stronger controls. The other options simply state different numbers and do not reflect the defined RES-2 boundary.

In RES-2, the assessment looks at the two most exposed people and adds their absorbed doses to gauge overall risk. The A and B represent those two individuals, and A+B is the total dose they collectively receive. The boundary for staying within this RES-2 category is that their combined dose must be 100 cGy or less. So, A+B <= 100 cGy expresses this limit: if the sum is at or below 100 cGy, the situation fits RES-2; if it were higher, it would push into a more restrictive risk category requiring stronger controls. The other options simply state different numbers and do not reflect the defined RES-2 boundary.