Lily field radiation
The Lilienfeld radiation is electrodynamics a form of transition radiation . It was named after its discoverer Julius Edgar Lilienfeld , who first described the radiation in 1919 after he let an electron beam with an energy of 5 keV hit a metal surface.
The lily field radiation has a blue-gray or gray-white color. Its cause was initially unclear because it could not be explained by the heating of the metal. Various attempts at explanation were in competition with each other, including the theory that it was the visible tail of bremsstrahlung .
In 1946 Vitali Lasarewitsch Ginsburg and Ilja Michailowitsch Frank published their theory of so-called transition radiation , which explained lily field radiation as the effect of charged particles passing through interfaces between substances with different dielectric constants . As a result, the lily field radiation was also proven experimentally as a form of transition radiation.
Individual evidence
- ↑ Julius Edgar Lilienfeld: The visible radiation of the focal point of X-ray tubes . In: Physikalische Zeitschrift . tape 20 , no. 12 , 1919, pp. 280 .
- ↑ Hans Boersch, C. Radeloff, G. Sauerbrey: About the visible and ultraviolet radiation released on metals by electrons . In: Journal of Physics A Hadrons and Nuclei . tape 165 , no. 4 , 1961, pp. 464-484 , doi : 10.1007 / BF01381902 .
- ↑ H. Boersch, C. Radeloff, G. Sauerbrey: Experimental Detection of Transition Radiation . In: Physical Review Letters . tape 7 , no. 2 , 1961, p. 52-54 , doi : 10.1103 / PhysRevLett.7.52 .
- ↑ Axel Bruns: The history of physics: how it came to physics until today . neobooks, Munich 2015, ISBN 978-3-7380-1946-9 , p. 99.
- ^ VL Ginsburg, IM Frank: In: J. Exp. Theoret. Phys. (USSR). 16, 1946, p. 15.
- ↑ Jochen Schnapka: Dual track detection using cathode readout on the ZEUS transition radiation detector . University of Bonn, 1998 ( (online) ( GZIP ; 724 kB) - diploma thesis). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
