Summary

Leírás

A Cserenkov-sugárzás geometriája. A sugárzás (kék nyilak) a részecske v sebességéhez (piros nyíl) képest θ fokos félnyílásszögű kúpfelület mentén halad. β = v/c, n a közeg törésmutatója. Az ábráról látható, hogy: ${\displaystyle \cos \theta ={\frac {1}{n\beta }}}$

English: Please note, this figure shows the ideal case of no dispersion, which means that the refractive index n is independent of the wavelength ${\displaystyle \lambda }$. In reality n will depend on ${\displaystyle \lambda }$ and hence the wave front (governed by group velocity) will no longer be perpendicular to the direction of the radiation (governed by phase velocity).

Deutsch: Bitte beachten, dass diese Abbildung nur den idealen Fall ohne Dispersion zeigt, also Brechungsindex n unabhängig von ${\displaystyle \lambda }$. In der Realität ist n eine Funktion von ${\displaystyle \lambda }$ und damit werden die Wellenfront (bestimmt durch die Gruppengeschwindigkeit) und die Ausbreitungsrichtung des Lichts (bestimmt durch die Phasengeschwindigkeit) nicht mehr senkrecht aufeinander stehen.

Szerző

Made by Arpad Horvath

Az xfig-el készítettem (Xfig-forrás: http://www.szgti.bmf.hu/harp/gnu/particle-physics/cserenkov.fig archive copy at the Wayback Machine ) 2004. körül, 2006-ban elmentettem xfiggel SVG-be, majd Inkscape-pel módosítottam. (Korábbi változatok en:Image:Cherenkov.png and hu:Image:Cserenkov.png)

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