Strong focusing system of FELI 6-MeV electron injector used for ultraviolet range FEL oscillation

Autor:	Y. Morii, T. Takii, S. Nishihara, E. Oshita, T. Tomimasu, S. Okuma
Rok vydání:	1998
Předmět:	Physics Nuclear and High Energy Physics Range (particle radiation) business.industry Free-electron laser Thermionic emission Injector Electron medicine.disease_cause law.invention Optics law medicine Strong focusing business Instrumentation Lasing threshold Ultraviolet
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 407:370-373
ISSN:	0168-9002
DOI:	10.1016/s0168-9002(98)00052-7
Popis:	First lasings of free electron laser (FEL) at ultraviolet range were achieved by using an electron linac with a thermionic gun. The gun is driven by a 22.3125 MHz, 0.5 ns wide, 150 V grid pulser. A short-bunching and strong-focusing system of the injector and a stable 24 μ s RF system allow lasing at 278 nm in spite of a small signal gain of 6%. The maximum focusing field is 0.11–0.12 T near the inlet of the buncher. The axial field distribution gives severe effect on lasing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f3673fb32e6322a42128180c3e5279f1 https://doi.org/10.1016/s0168-9002(98)00052-7 Zobrazit plný text záznamu Full Text from ScienceDirect