Introduction to Nuclear and Particle Physics by V. K. Mittal & R. C. Verma & S. C. Gupta

Author:V. K. Mittal & R. C. Verma & S. C. Gupta [Mittal, V. K. & Verma, R. C. & Gupta, S. C.]
Language: eng
Format: epub
Tags: Science, Physics, Nuclear, General
ISBN: 9788120347380
Google: 4SlLmLevqs8C
Publisher: PHI Learning
Published: 2013-04-02T10:41:19+00:00

Figure 5.3 Block diagram of the apparatus used for determination of attenuation coefficients.

The experiment is first performed without putting any absorber at position B. The counts recorded in the g-ray spectrometer give I0. Then by putting absorbers of different thicknesses at position B, corresponding counts I are recorded. A plot between ln versus thickness of the absorber x is shown in Figure 5.4 for Al and Pb absorbers. The slope of this line gives the value of m, which in this case is 0.18 cm–1 for Al and 0.94 cm–1 for Pb.

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