Determination of rest mass energy of the electron by a Compton scattering experiment

Prasanna Kumar, S. and Krishnaveni, S. and Umesh, T. K. (2012) Determination of rest mass energy of the electron by a Compton scattering experiment. European Journal of Physics, 33 (1). pp. 65-72. ISSN 1361-6404

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Official URL: https://doi.org/10.1088%2F0143-0807%2F33%2F1%2F005

Abstract

We report here a simple Compton scattering experiment which may be carried out in graduate and undergraduate laboratories to determine the rest mass energy of the electron. In the present experiment, we have measured the energies of the Compton scattered gamma rays with a NaI(Tl) gamma ray spectrometer coupled to a 1 K multichannel analyzer at five scattering angles of θ = 30°, 50°, 60°, 70° and 80° using a 137Cs radioactive gamma source and a suitable aluminum absorber. The rest mass energy of the electron is determined as the reciprocal of the slope of the plot of parameter S versus (1 − cos θ). The obtained value is found to agree with the standard value.

Item Type: Article
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: C Swapna Library Assistant
Date Deposited: 29 Jul 2019 10:15
Last Modified: 23 Oct 2019 10:20
URI: http://eprints.uni-mysore.ac.in/id/eprint/6192

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