If the HVL shielding material is equal to 2mm, how much radiation will transmit through 6mm of this material?

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Multiple Choice

If the HVL shielding material is equal to 2mm, how much radiation will transmit through 6mm of this material?

Explanation:
Each HVL (half-value layer) halves the radiation that gets through. If the HVL is 2 mm, then 6 mm of material equals 3 HVLs (6 ÷ 2 = 3). The transmission through three HVLs is (1/2) × (1/2) × (1/2) = 1/8, which is 12.5% of the original radiation. So only about 12.5% passes through. For reference, 1 HVL would give 50% transmission, 2 HVLs would be 25%, and 3 HVLs 12.5%.

Each HVL (half-value layer) halves the radiation that gets through. If the HVL is 2 mm, then 6 mm of material equals 3 HVLs (6 ÷ 2 = 3). The transmission through three HVLs is (1/2) × (1/2) × (1/2) = 1/8, which is 12.5% of the original radiation. So only about 12.5% passes through. For reference, 1 HVL would give 50% transmission, 2 HVLs would be 25%, and 3 HVLs 12.5%.

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