Introduction To Health Physics
Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 4, Problem 4.1P
To determine

The kinetic energy of the beta particle.

Expert Solution & Answer
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Answer to Problem 4.1P

Kinetic energy of beta particle = 156.875 keV.

Explanation of Solution

Given Information:

Atomic mass of parent beta particle = 14.003241989

Atomic mass of daughter beta particle = 14.003074004

Energy of beta particle is equivalent to a change in masses of the atomic element.

  K.Mmax=[mPma]c2=[14.00324198914.003074004]×(3×108)2=2.5248×1014J=157.598 keV.

Conclusion:

Most energetic Beta particles have a kinetic energy of 157.598 keV.

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