학술논문
Extremely low vertical-emittance beam in the accelerator test facility at KEK.
Document Type
Academic Journal
Author
Kubo K; High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.; Akemoto M; Anderson S; Aoki T; Araki S; Bane KL; Blum P; Corlett J; Dobashi K; Emma P; Frisch J; Fukuda M; Guo Z; Hasegawa K; Hayano H; Higo T; Higurashi A; Honda Y; Iimura T; Imai T; Jobe K; Kamada S; Karataev P; Kashiwagi S; Kim E; Kobuki T; Kotseroglou T; Kurihara Y; Kuriki M; Kuroda R; Kuroda S; Lee T; Luo X; McCormick DJ; McKee B; Mimashi T; Minty M; Muto T; Naito T; Naumenko G; Nelson J; Nguyen MN; Oide K; Okugi T; Omori T; Oshima T; Pei G; Potylitsyn A; Qin Q; Raubenheimer T; Ross M; Sakai H; Sakai I; Schmidt F; Slaton T; Smith H; Smith S; Smith T; Suzuki T; Takano M; Takeda S; Terunuma N; Toge N; Turner J; Urakawa J; Vogel V; Woodley M; Yocky J; Young A; Zimmermann F
Source
Publisher: American Physical Society Country of Publication: United States NLM ID: 0401141 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0031-9007 (Print) Linking ISSN: 00319007 NLM ISO Abbreviation: Phys Rev Lett Subsets: PubMed not MEDLINE
Subject
Language
English
ISSN
0031-9007
Abstract
Electron beams with the lowest, normalized transverse emittance recorded so far were produced and confirmed in single-bunch-mode operation of the Accelerator Test Facility at KEK. We established a tuning method of the damping ring which achieves a small vertical dispersion and small x-y orbit coupling. The vertical emittance was less than 1% of the horizontal emittance. At the zero-intensity limit, the vertical normalized emittance was less than 2.8 x 10(-8) rad m at beam energy 1.3 GeV. At high intensity, strong effects of intrabeam scattering were observed, which had been expected in view of the extremely high particle density due to the small transverse emittance.