If shielding material has an HVL of 2 mm, what is the transmission through 10 mm of this material?

Prepare for the RTBC X-ray Production and Safety Test. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam and ensure your understanding of X-ray production and safety protocols!

Multiple Choice

If shielding material has an HVL of 2 mm, what is the transmission through 10 mm of this material?

Explanation:
HVL stands for half-value layer, the thickness that reduces the beam’s intensity to 50%. To traverse 10 mm with an HVL of 2 mm, you pass through 10 ÷ 2 = 5 HVLs. Each HVL halves the transmission, so multiply by 0.5 five times: 0.5^5 = 0.03125. That equals 3.125% transmission. In other words, after five halvings, only about 3.125% of the original beam gets through.

HVL stands for half-value layer, the thickness that reduces the beam’s intensity to 50%. To traverse 10 mm with an HVL of 2 mm, you pass through 10 ÷ 2 = 5 HVLs. Each HVL halves the transmission, so multiply by 0.5 five times: 0.5^5 = 0.03125. That equals 3.125% transmission. In other words, after five halvings, only about 3.125% of the original beam gets through.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy