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

question 45

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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