Smith-Purcell radiation

• Verfasst von: Doucas, George [VerfasserIn]
• Titel: Smith-Purcell radiation
• Verf.angabe: George Doucas
• Verlagsort: Oxford, United Kingdom
• Verlag: Oxford University Press
• E-Jahr: 2025
• Jahr: [2025]
• Umfang: viii, 88 Seiten
• Illustrationen: Diagramme
• ISBN: 978-0-19-895134-6
• Sprache: eng
• RVK-Notation: UH 5610
• K10plus-PPN: 1920027076

Abstract

"Smith-Purcell radiation is the name given to the radiation produced when a charged particle beam, usually electrons, passes close to the surface of a metallic grating. The wavelength of the emitted radiation depends on the period of the grating and on the angle of observation. This makes this phenomenon a very useful tuneable source of radiation in the far-infrared (or THz) part of the spectrum, where tuneable sources are scarce. Moreover, a spectral analysis of the radiation can be used to reconstruct the time profile of the very short (picosecond or sub-picosecond) electron bunches that gave rise to this radiation. This is a parameter that is of interest to accelerator designers and users. The book is aimed primarily at experimentalists but starts with a relatively simple theoretical description of the origin of this radiation and then discusses its application either as a beam diagnostic tool or as a tuneable source of THz radiation. There is also a brief overview of other THz sources in order to allow the reader to assess the advantages of Smith-Purcell radiation"--