Using a TV Set to Show Electron Diffraction
We show the feasibility of constructing a simple set-up to demonstrate the diffraction of electrons starting from a standard TV set. Two concentric rings around a central maxima appears on the screen of the modified TV set corresponding to atomic planes (1, 0, 0) and (1, 1, 0) of a hexagonal structu...
| Autores Principales: | Cruz de Gracia, Evgeni S., Baibich, Mario Norberto |
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| Formato: | Artículo |
| Idioma: | Inglés Inglés |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: |
http://ridda2.utp.ac.pa/handle/123456789/2370 http://ridda2.utp.ac.pa/handle/123456789/2370 |
| Sumario: |
We show the feasibility of constructing a simple set-up to demonstrate the diffraction of electrons starting from a standard TV set. Two concentric rings around a central maxima appears on the screen of the modified TV set corresponding to atomic planes (1, 0, 0) and (1, 1, 0) of a hexagonal structure of graphite sample. A reasonable Planck’s constant value is determined through the slope of a plot of λd2 vs 1/V where we used the average Bragg wavelength for both diffraction rings for each value of accelerating voltage. Since wave particle behavior of matter is shown, we believe this simple set-up is useful for introductory physics courses at high school and undergraduate levels. |
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