CERN Accelerating science

Preprint
Report number	CERN-AB-2005-035 ; CLIC-Note-636 ; DESY-05-148 ; DESY-2005-148 ; ILC-ASIA-2005-22 ; JAI-2005-002 ; KEK-REPORT-2005-2 ; SLAC-R-771 ; UT-ICEPP-2005-02
Title	ATF2 Proposal : v.1
Author(s)	Braun, H (CERN) ; Ivanovich-Grishanov, Boris (Novosibirsk, IYF) ; Logatchev, P V (Novosibirsk, IYF) ; Podgorny, Fedor (Novosibirsk, IYF) ; Telnov, Valery I (Novosibirsk, IYF) ; Angal-Kalinin, Deepa (Daresbury) ; Appleby, Robert (Daresbury) ; Jones, James (Daresbury) ; Kalinin, Alexander (Daresbury) ; Napoly, Olivier (DSM, DAPNIA, Saclay) ; Payet, Jacques (DSM, DAPNIA, Saclay) ; Braun, Hans Heinrich (CERN) ; Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN) ; Barlow, Roger J (Cockcroft Inst. Accel. Sci. Tech.) ; Bailey, Ian Richard (Cockcroft Inst. Accel. Sci. Tech.) ; Jenner, Leo (Cockcroft Inst. Accel. Sci. Tech.) ; Jones, Roger (Cockcroft Inst. Accel. Sci. Tech.) ; Kourevlev, German Yu (Cockcroft Inst. Accel. Sci. Tech.) ; Walker, Nick (DESY) ; Takahasi, Tohru (Hiroshima U. (main)) ; Gao, Jie (Beijing, Inst. High Energy Phys.) ; Liu Wei Bin (Beijing, Inst. High Energy Phys.) ; Pei Guo Xi (Beijing, Inst. High Energy Phys.) ; Wang Jiu Qing (Beijing, Inst. High Energy Phys.) ; Delerue, Nicolas (Oxford U., JAI) ; Dixit, Sudhir (Oxford U., JAI) ; Howell, David Francis (Oxford U., JAI) ; Reichold, Armin (Oxford U., JAI) ; Agapov, Ilya V (Oxford U., JAI) ; Blair, Grahame A (Oxford U., JAI) ; Boorman, Gary (Oxford U., JAI) ; Carter, John (Oxford U., JAI) ; Driouichi, Chafik (Oxford U., JAI) ; Price, Michael T (Oxford U., JAI) ; Araki, Sakae (KEK, Tsukuba) ; Hayano, Hitoshi (KEK, Tsukuba) ; Higashi, Yasuo (KEK, Tsukuba) ; Honda, Yosuke (KEK, Tsukuba) ; Kanazawa, Ken Ichi (KEK, Tsukuba) ; Kubo, Kiyoshi (KEK, Tsukuba) ; Kume, Tatsuya (KEK, Tsukuba) ; Kuriki, Masao (KEK, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba) ; Masuzawa, Mika (KEK, Tsukuba) ; Naito, Takashi (KEK, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba) ; Sugahara, Ryuhei (KEK, Tsukuba) ; Tauchi, Toshiaki (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Toge, Nobu (KEK, Tsukuba) ; Urakawa, Junji ; Vogel, Vladimir (KEK, Tsukuba) ; Yamaoka, Hiroshi (KEK, Tsukuba) ; Yokoya, Kaoru (KEK, Tsukuba) ; Yoshihisa, Iwashita (Kyoto U., Inst. Chem. Res.) ; Mihara, Takanori (Kyoto U., Inst. Chem. Res.) ; Bambade, Philip (Orsay, LAL) ; Wolski, Andrzej (LBL, Berkeley) ; Gronberg, Jeff (LLNL, Livermore) ; Takashi Boogert, Stewart (University Coll. London) ; Lyapin, A (University Coll. London) ; Malton, Stephen (University Coll. London) ; Miller, David J (University Coll. London) ; Kumada, Masayuki (NIRS, Chiba) ; Danagulyan, S (North Carolina A-T State U.) ; Torrence, Eric (Oregon U.) ; Choi Jinh Yuk (Pohang Accelerator Lab.) ; Huang Jung Yun (Pohang Accelerator Lab.) ; Sik Kang Heung (Pohang Accelerator Lab.) ; Kim, E S (Pohang Accelerator Lab.) ; Kim Seungh Wan (Pohang Accelerator Lab.) ; Soo Ko In (Pohang Accelerator Lab.) ; Burrows, P N (Queen Mary, U. of London (main)) ; Christian, Glenn B (Queen Mary, U. of London (main)) ; Clarke, Christine (Queen Mary, U. of London (main)) ; Hartin, Anthony F (Queen Mary, U. of London (main)) ; Dabiri-Khah, Hamid (Queen Mary, U. of London (main)) ; Molloy, Stephen (Queen Mary, U. of London (main)) ; Bane, Karl Leopold Freitag (SLAC) ; Brachmann, Axel (SLAC) ; Himel, Thomas (SLAC) ; Markiewicz, Thomas W (SLAC) ; Nelson, Janice (SLAC) ; Nosochkov, Yuri (SLAC) ; Phinney, Nan (SLAC) ; Torino, Mauro (SLAC) ; Pivi, Francesco (SLAC) ; Raubenheimer, T O (SLAC) ; Ross, Marc (SLAC) ; Ruland, R E (SLAC) ; Seryi, Andrei (SLAC) ; Spencer, Cherrill M (SLAC) ; Tenenbaum, P G (SLAC) ; Woodley, Mark (SLAC) ; Komamiya, Sachio (U. Tokyo (main)) ; Sanuki, Tomoyuki (U. Tokyo (main)) ; Suehara, T (U. Tokyo (main))
Publication	2005
Collaboration	ATF2(KEK) Group
Imprint	11 Aug 2005
Number of pages	107
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	KEK ATF ; ATF CLIC
Abstract	Since the ICFA decision on the choice of technology, a world-wide collaboration on the design of the ILC has rapidly progressed. The formation of the GDE will accelerate the work towards a final design. An important technical challenge is obviously the high gradient acceleration but what is similarly challenging is the collision of extremely small beams of a few nanometer size. The latter challenge has three distinct issues: creating small emittance beams, preserving the emittance during acceleration and transport, and focusing the beams to nanometers. Most studies have been done using computer simulations but many issues still remain that require experimental verification. KEK-ATF was built to create small emittance beams, and succeeded in obtaining an emittance that almost satisfies the ILC requirements. In this proposal we present a project, ATF2, which addresses the third issue, namely the focusing of the beam into nanometer spot.ybr> In the longer term, the ATF2 project would also provide invaluable input for the CLIC design of a future multi-TeV collider. The ATF2 project will extend the extraction beamline of the ATF with an ILC-type final focus system to create a tightly focused, stable beam by making use of the small emittance of the ATF.
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