Precision Compton-Effect Experiment

French, Walter R.

doi:10.1119/1.1971877

Cited by 3 publications

(2 citation statements)

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“…This experiment complements a series of experiments on Compton scattering using γ-rays that has been an important part of the undergraduate laboratory for many decades. Various forms of such experiments have been proposed and implemented, from the measurement of absorption coefficients to probe the characteristics of the scattered photons [16], to experiments involving precision spectroscopy and timing components [17][18][19] and experiments investigating polarisation effects [20].…”

Section: Introductionmentioning

confidence: 99%

An undergraduate laboratory study of the polarisation of annihilation photons using Compton scattering

et al. 2018

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An experiment for the advanced undergraduate laboratory which allows students to study the effect of photon polarisation in Compton scattering and to explore quantum entanglement is described. The quantum entangled photons are produced through electron-positron annihilation in the S-state, and their polarisations are analysed using the Compton scattering cross-section dependence on the photon polarisation. The experiment was equipped with off-the-shelf detectors and electronic units. Finite geometry effects are discussed and investigated with the use of a Geant4based simulation.

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Section: Introductionmentioning

confidence: 99%

An undergraduate laboratory study of the polarisation of annihilation photons using Compton scattering

et al. 2018

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“…A typical example is the study of the Compton effect [1] in γ rays that found its place in the undergraduate training programme in the 1960s, and is still an important part of the training of young physicists. Various forms of the experiment have been proposed for the undergraduate laboratory, from the measurement of γ-ray absorption coefficients for probing the characteristics of the scattered photons [2], to experiments involving precision spectroscopy and timing [3][4][5]. The increasing precision that can be achieved with inexpensive means has led to extensions of laboratory exercises which demonstrate the relativistic energy-momentum relation for electrons [6] and the precision of detectors [7].…”

Section: Introductionmentioning

confidence: 99%

Studying the effect of polarisation in Compton scattering in the undergraduate laboratory

Knights¹,

Ryburn²,

Tungate³

et al. 2018

Eur. J. Phys.

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Abstract. An experiment for the advanced undergraduate laboratory allowing students to directly observe the effect of photon polarisation on Compton scattering is described. An initially unpolarised beam of photons is polarised via Compton scattering and analysed through a subsequent scattering. The experiment is designed to use equipment typically available at an undergraduate physics laboratory. The experimental results are compared with a Geant4 simulation and geometry effects are discussed.

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A Non-Relativistic Look at the Compton Effect

Feller

Giri

Zakrasek

et al. 2014

The Physics Teacher

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In a usual modern physics class the Compton effect is used as the pedagogical model for introducing relativity into quantum effects. The shift in photon wavelengths is usually introduced and derived using special relativity. Indeed, this works well for explaining the effect. However, in the senior author's class one of the student coauthors of this paper, Sandeep Giri, asked what would happen if classical expressions for the electrons' momentum (mv) and kinetic energy [(1/2)mv2] were used. The first response given to the question was that the relevant energies were relativistic and hence this approach would not work. Further thought led to the realization that the electron receives only the difference in the energies of the incoming and outgoing photons. This left the initial conclusion in doubt and we began a serious look at what would the answer be. As a result of our analyses, we believe that the Compton effect provides the clearest pedagogical test for the need of relativity in the case of gamma ray scattering while allowing both the classical and relativistic results to explain the original x-ray results of Compton.

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Precision Compton-Effect Experiment

Cited by 3 publications

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An undergraduate laboratory study of the polarisation of annihilation photons using Compton scattering

An undergraduate laboratory study of the polarisation of annihilation photons using Compton scattering

Studying the effect of polarisation in Compton scattering in the undergraduate laboratory

A Non-Relativistic Look at the Compton Effect

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