The free electron laser with inverse taper

Autor:	R.D. McGinnis, William B. Colson
Rok vydání:	2000
Předmět:	Physics Nuclear and High Energy Physics business.industry Free-electron laser Physics::Optics Inverse Particle accelerator Electron Undulator law.invention Optics law Cathode ray Physics::Accelerator Physics Atomic physics business Instrumentation Beam (structure) Energy (signal processing)
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 445:49-52
ISSN:	0168-9002
DOI:	10.1016/s0168-9002(00)00112-1
Popis:	The undulator design determines the physics of the free electron laser interaction. In the tapered undulator, the resonant electron energy decreases along the undulator length in order to enhance gain and efficiency in strong optical fields. With inverse taper, the resonant electron energy increases along the undulator length. Surprisingly, gain and efficiency are also increased in strong optical fields. In addition, the resultant electron beam energy spread is decreased compared to both the tapered and untapered undulator. A reduction of the final electron beam energy spread is useful when recirculating the beam current as in the Jefferson Lab FEL.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb16ce023ddb2e07544f11a7cce7ec19 https://doi.org/10.1016/s0168-9002(00)00112-1 Zobrazit plný text záznamu Full Text from ScienceDirect