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TH5RFP070 |
Nanometer Resolution Beam Position Monitor for the ATF2 Interaction Point Region
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3603 |
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- A. Heo, E.-S. Kim, H.-S. Kim
Kyungpook National University, Daegu
- R. Ainsworth, S.T. Boogert, G.E. Boorman
Royal Holloway, University of London, Surrey
- Y. Honda, T. Tauchi, N. Terunuma
KEK, Ibaraki
- S.H. Kim, Y.J. Park
PAL, Pohang, Kyungbuk
- A. Lyapin, B. Maiheu, M. Wing
UCL, London
- J. May, D.J. McCormick, S. Molloy, J. Nelson, T.J. Smith, G.R. White
SLAC, Menlo Park, California
- S. Shin
Fermilab, Batavia
- D. Son
CHEP, Daegu
- D.R. Ward
University of Cambridge, Cambridge
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The ATF2 international collaboration is intending to demonstrate nanometer beam sizes required for the future Linear Colliders. The position of the electron beam focused down at the end of the ATF2 extraction line to a size as small as 35 nm has to be measured with nanometer resolution. For that purpose a special Interaction Point(IP) beam position monitor (BPM) was designed. In this paper we report on the features of the BPM and electronics design providing the required resolution. We also consider the results obtained with BPM triplet which was installed in the ATF beamline and the first data from ATF2 commissioning runs.
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TH6REP025 |
Development of the S-Band BPM System for ATF2
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4003 |
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- A. Lyapin, B. Maiheu, M. Wing
UCL, London
- R. Ainsworth, A.S. Aryshev, S.T. Boogert, G.E. Boorman, S. Molloy
Royal Holloway, University of London, Surrey
- A. Heo, E.-S. Kim, H.-S. Kim
Kyungpook National University, Daegu
- Y. Honda, T. Tauchi, N. Terunuma
KEK, Ibaraki
- D.J. McCormick, J. Nelson, G.R. White
SLAC, Menlo Park, California
- S. Shin
Fermilab, Batavia
- D.R. Ward
University of Cambridge, Cambridge
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The ATF2 international collaboration is intending to demonstrate nanometre beam sizes required for the future Linear Colliders. An essential part of the beam diagnostics needed to achieve this goal is the high resolution cavity beam position monitors (BPMs). In this paper we report on the S-band system installed in the final focus region of the new ATF2 extraction beamline. It only includes 4 BPMs, but they are mounted on the most critical final focus magnets squeezing the beam down to 35 nm. We discuss both the design and the first operational experience with the system.
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TH6REP028 |
Development of the C-Band BPM System for ATF2
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4009 |
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- S. Molloy, R. Ainsworth, S.T. Boogert, G.E. Boorman
Royal Holloway, University of London, Surrey
- A. Heo, E.-S. Kim, H.-S. Kim
Kyungpook National University, Daegu
- Y. Honda, T. Tauchi, N. Terunuma
KEK, Ibaraki
- A. Lyapin, B. Maiheu, M. Wing
UCL, London
- D.J. McCormick, J. Nelson, G.R. White
SLAC, Menlo Park, California
- S. Shin
Fermilab, Batavia
- D.R. Ward
University of Cambridge, Cambridge
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The ATF2 international collaboration is intending to demonstrate nanometre beam sizes required for the future Linear Colliders. An essential part of the beam diagnostics needed to achieve that goal is the high resolution cavity beam position monitors (BPMs). In this paper we report on the C-band system consisting of 32 BPMs spread over the whole length of the new ATF2 extraction beamline. We discuss the design of the BPMs and electronics, main features of the DAQ system, and the first operational experience with these BPMs.
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FR1RAI03 |
ATF2 Commissioning
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4205 |
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- A. Seryi, J.W. Amann, P. Bellomo, B. Lam, D.J. McCormick, J. Nelson, J.M. Paterson, M.T.F. Pivi, T.O. Raubenheimer, C.M. Spencer, M.-H. Wang, G.R. White, W. Wittmer, M. Woodley, Y.T. Yan, F. Zhou
SLAC, Menlo Park, California
- D. Angal-Kalinin, J.K. Jones
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
- R. Apsimon, B. Constance, C. Perry, J. Resta-López, C. Swinson
JAI, Oxford
- S. Araki, A.S. Aryshev, H. Hayano, Y. Honda, K. Kubo, T. Kume, S. Kuroda, M. Masuzawa, T. Naito, T. Okugi, R. Sugahara, T. Tauchi, N. Terunuma, J. Urakawa, K. Yokoya
KEK, Ibaraki
- S. Bai, J. Gao
IHEP Beijing, Beijing
- P. Bambade, Y. Renier, C. Rimbault
LAL, Orsay
- G.A. Blair, S.T. Boogert, V. Karataev, S. Molloy
Royal Holloway, University of London, Surrey
- B. Bolzon, N. Geffroy, A. Jeremie
IN2P3-LAPP, Annecy-le-Vieux
- P. Burrows
OXFORDphysics, Oxford, Oxon
- G.B. Christian
ATOMKI, Debrecen
- J.-P. Delahaye, D. Schulte, R. Tomás, F. Zimmermann
CERN, Geneva
- E. Elsen
DESY, Hamburg
- E. Gianfelice-Wendt, M.C. Ross, M. Wendt
Fermilab, Batavia
- A. Heo, E.-S. Kim, H.-S. Kim
Kyungpook National University, Daegu
- J.Y. Huang, W.H. Hwang, S.H. Kim, Y.J. Park
PAL, Pohang, Kyungbuk
- Y. Iwashita, T. Sugimoto
Kyoto ICR, Uji, Kyoto
- Y. Kamiya
ICEPP, Tokyo
- S. Komamiya, M. Oroku, T.S. Suehara, T. Yamanaka
University of Tokyo, Tokyo
- A. Lyapin
UCL, London
- B. Parker
BNL, Upton, Long Island, New York
- T. Sanuki
Tohoku University, Graduate School of Science, Sendai
- A. Scarfe
UMAN, Manchester
- T. Takahashi
Hiroshima University, Graduate School of Science, Higashi-Hiroshima
- A. Wolski
Cockcroft Institute, Warrington, Cheshire
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ATF2 is a final-focus test beam line that attempts to focus the low-emittance beam from the ATF damping ring to a beam size of about 37 nm, and at the same time to demonstrate nm beam stability, using numerous advanced beam diagnostics and feedback tools. The construction is well advanced and beam commissioning of ATF2 has started in the second half of 2008. ATF2 is constructed and commissioned by ATF international collaborations with strong US, Asian and European participation.
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Slides
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