1 ms Pulse Beam Generation and Acceleration by Photocathode Radio Frequency Gun and Superconducting Accelerator

Autor:	Seiichi Hosoda, Ayaka Kuramoto, Shigeru Kashiwagi, Ken Watanabe, Junji Urakawa, Ryukou Kato, Hitoshi Hayano, Masao Kuriki, Hokuto Iijima, Kazuyuki Sakaue, Keigo Kawase, Goro Isoyama
Rok vydání:	2013
Předmět:	Physics International Linear Collider business.industry General Engineering General Physics and Astronomy Laser Photocathode law.invention Acceleration Optics Nuclear magnetic resonance law Cathode ray Physics::Accelerator Physics Radio frequency business Beam (structure) Electron gun
Zdroj:	Japanese Journal of Applied Physics. 52:056401
ISSN:	1347-4065 0021-4922
Popis:	We report the successful generation and acceleration of a 1-ms-long pulse and multibunch electron beam by a normal conducting photocathode RF gun and a super conducting accelerator at the KEK Superconducting Test Facility (STF). A 1.3 GHz normal conducting RF gun generates a 1 ms and 10 mA macropulse that fully satisfies the designed parameters. This is the longest macropulse generated by a normal conducting RF gun with a frequency of more than 1 GHz. A beam acceleration of up to 40 MeV was demonstrated with more than 60% of the designed average current. The accelerated beam properties were evaluated: the intensity and energy fluctuations were 3.8% and less than 0.08%, respectively. These beam properties are sufficient for the requirement of the STF operation including that in the quantum beam project, which is high-brightness-X-ray generation by inverse laser Compton scattering. The intensity fluctuation should be improved toward the International Linear Collider (ILC) for uniform acceleration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d3ce9c6e4da7c102b612c119221fd41 https://doi.org/10.7567/jjap.52.056401 Zobrazit plný text záznamu