An 85-kg person exposed to barium-141 receives 2.5 × 10⁵ β particles, each with an energy of 5.2 × 10^-¹³ J. How many rads does the person receive?

Question

Quizplus · Accepted Answer

To calculate the dose in rads, use the formula: Dose (rads) = (Energy absorbed in joules / mass in kg) × 100. The total energy absorbed is (2.5 × 10^5 particles) × (5.2 × 10^-13 J/particle) = 1.3 × 10^-7 J. The dose is (1.3 × 10^-7 J / 85 kg) × 100 = 1.5 × 10^-7 rads.

An 85-Kg Person Exposed to Barium-141 Receives 2