Calculate the Half-Value Thickness (In Mm) of Lead If It

question 58

Multiple Choice

Calculate the half-value thickness (in mm) of lead if it reduces the intensity of a beam of x-rays whose wavelength is 10 pm by a factor of two. (Assume the linear absorption coefficient of lead is 43 cm−¹ for x-rays of wavelength 10 × 10−¹² m.)

• A) 0.24
• B) 0.20
• C) 0.12
• D) 0.16
• E) 0.18

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