Present status and first results of the final focus beam line at the KEK   Accelerator Test Facility

P. Bambade (Orsay; KEK; Tsukuba); M. Alabau Pons (Valencia U.,; IFIC); J. Amann (SLAC); D. Angal-Kalinin (Daresbury); R. Apsimon (Oxford U.,; JAI); S. Araki; A. Aryshev (KEK; Tsukuba); S. Bai (Beijing; Inst. High Energy; Phys.); P. Bellomo (SLAC); D. Bett (Oxford U.; JAI) G. Blair (Royal Holloway,; U. of London); B. Bolzon (Savoie U.); S. Boogert; G. Boorman (Royal Holloway,; U. of London); P.N. Burrows; G. Christian; P. Coe; B. Constance (Oxford U.,; JAI); Jean-Pierre Delahaye (CERN); L. Deacon (Royal Holloway; U. of London),; E. Elsen (DESY); A. Faus-Golfe (Valencia U.; IFIC); M. Fukuda (KEK; Tsukuba),; J. Gao (Beijing; Inst. High Energy Phys.); N. Geffroy (Savoie U.); E.; Gianfelice-Wendt (Fermilab); H. Guler (Ecole Polytechnique); H. Hayano (KEK,; Tsukuba); A.-Y. Heo (Kyungpook Natl. U.); Y. Honda (KEK; Tsukuba); J.Y.; Huang; W.H. Hwang (Pohang Accelerator Lab.); Y. Iwashita (Kyoto U.; Inst.; Chem. Res.); A. Jeremie (Savoie U.); J. Jones (Daresbury); Y. Kamiya (Tokyo; U.); P. Karataev (Royal Holloway; U. of London); E.-S. Kim; H.-S. Kim; (Kyungpook Natl. U.); S.H. Kim (Pohang Accelerator Lab.); S. Komamiya (Tokyo; U.); K. Kubo; T. Kume; S. Kuroda (KEK; Tsukuba); B. Lam (SLAC); A. Lyapin; (University Coll. London); M. Masuzawa (KEK; Tsukuba); D. McCormick (SLAC),; S. Molloy (Royal Holloway; U. of London); T. Naito (KEK; Tsukuba); T.; Nakamura (Tokyo U.); J. Nelson (SLAC); D. Okamoto (Tohoku U.); T. Okugi (KEK,; Tsukuba); M. Oroku (Tokyo U.); Y.J. Park (Pohang Accelerator Lab.); B. Parker; (Brookhaven); E. Paterson (SLAC); C. Perry (Oxford U.; JAI); M. Pivi; T.; Raubenheimer (SLAC); Y. Renier (Orsay; KEK; Tsukuba); J. Resta-Lopez; (Oxford U.; JAI); C. Rimbault (Orsay); M. Ross (Fermilab); T. Sanuki (Tohoku; U.); A. Scarfe (Manchester U.); D. Schulte (CERN); A. Seryi; C. Spencer; (SLAC); T. Suehara (Tokyo U.); R. Sugahara (KEK; Tsukuba); C. Swinson (Oxford; U.; JAI); T. Takahashi (Hiroshima U.); T. Tauchi; N. Terunuma (KEK; Tsukuba),; R. Tomas (CERN); J. Urakawa (KEK; Tsukuba); D. Urner (Oxford U.; JAI); M.; Verderi (Ecole Polytechnique); M.-H. Wang (SLAC); M. Warden (Oxford U.; JAI),; M. Wendt (Fermilab); G. White; W. Wittmer (SLAC); A. Wolski (Liverpool U.),; M. Woodley (SLAC); Y. Yamaguchi; T. Yamanaka (Tokyo U.); Y. Yan (SLAC); H.; Yoda (Tokyo U.); K. Yokoya (KEK; Tsukuba); F. Zhou (SLAC); F. Zimmermann; (CERN)

arXiv:1207.1334·physics.acc-ph·July 6, 2012

Present status and first results of the final focus beam line at the KEK Accelerator Test Facility

P. Bambade (Orsay, KEK, Tsukuba), M. Alabau Pons (Valencia U.,, IFIC), J. Amann (SLAC), D. Angal-Kalinin (Daresbury), R. Apsimon (Oxford U.,, JAI), S. Araki, A. Aryshev (KEK, Tsukuba), S. Bai (Beijing, Inst. High Energy, Phys.), P. Bellomo (SLAC), D. Bett (Oxford U.

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TL;DR

The paper reports on the initial results and current status of the ATF2 final-focus test beam line at KEK, which aims to achieve nanometer-level beam size and stability using advanced diagnostics and feedback systems.

Contribution

It presents the first results and status of the ATF2 beam line, demonstrating progress towards nanometer-scale beam focusing and stability at KEK.

Findings

01

Construction and installation completed in December 2008

02

Initial beam commissioning has begun

03

Progress towards nanometer beam size and stability

Abstract

ATF2 is a final-focus test beam line which aims to focus the low emittance beam from the ATF damping ring to a vertical size of about 37 nm and to demonstrate nanometer level beam stability. Several advanced beam diagnostics and feedback tools are used. In December 2008, construction and installation were completed and beam commissioning started, supported by an international team of Asian, European, and U.S. scientists. The present status and first results are described.

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