Concept explainers
(a)
The linear, mass and atomic attenuation coefficient.
(a)
Explanation of Solution
Given:
Density of lead,
Formula Used:
The attenuation of gamma ray can be described as,
Where,
Calculation:
The attenuation of gamma ray can be described as,
As intensity observed initially is 1000. So,
For
For
For
For
For
For
For
For
So, mean is,
The mass attenuation is given by,
The mass of the lead per unit volume is,
So, mass of each atom is,
Thus, number of atoms per unit volume is,
So, atomic attenuation coefficient is,
Conclusion:
The linear, mass and atomic attenuation coefficient are,
(b)
The energy of the gamma rays.
(b)
Explanation of Solution
The mass attenuation coefficient is 0.055 cm2/g.
Total mass attenuation coefficient 0.0569 cm2/g is close to calculated in part (a) and this corresponds to a value of
Thus, the energy corresponding to it is,
Conclusion:
The energy of gamma rays is
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Chapter 5 Solutions
Introduction To Health Physics
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