PAC 2005 - List of Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Masuzawa, M.

Paper	Title	Page
MOPC008	Dynamic Beam-Beam Effects Measured at KEKB	606
	T. Ieiri, Y. Funakoshi, T. Kawamoto, M. Masuzawa, M. Tobiyama KEK, Ibaraki
	Funding: This work is partially supported by Grant-in-Aid Scientific Research (16540271) from Japan Society for the Promotion of Science and Technology. KEKB is a multi-bunch, high-current, electron/positron collider for B meson physics. The two beams collide at one interaction point (IP) with a finite horizontal crossing angle and with a bunch-space of 6 to 8 ns. The luminosity achieved at KEKB is the best in the world. The betatron tunes are set close to a half integer, to expect the dynamic beam-beam effects that change the beta function around the rings and the emittance as a function of the beam-beam parameter. In order to investigate such attractive beam-beam effects, the beam-beam kick and the beam-beam tune-shift were obtained by comparing the beam parameters between a colliding bunch and a non-colliding one. The horizontal beam size at the IP estimated from a beam-beam kick curve was slightly less than a calculated value without the dynamic effect. The horizontal emittance estimated from the beam-beam tune shift was somewhat larger than a calculated natural emittance. These experimental results reflect the dynamic beam-beam effects.
TPPP003	Lattice Upgrade Plan for Crab Crossing at the KEKB Rings	865
	A. Morita, K. Egawa, K. Hosoyama, H. Koiso, T. Kubo, M. Masuzawa, K. Ohmi, K. Oide, R. Sugahara, M. Yoshida KEK, Ibaraki
	We plan to install two superconducting crab cavities into the rings at Janyary, 2006. In our plan, we will install one crab cavity per one ring into the NIKKO straight section where the cryogenic infrastructure is already operated for the superconducting accelerating cavities. In order to obtain the correct crabbing angle at the interaction point(IP), we have to enlarge the horizontal beta function(200m for HER) and have to adjust the horizontal phase advance between the IP and the cavity installation point. In this paper, we will report the lattice modified for the crab crossing and the study results about the single beam dynamics.
TPPP007	Recent Progress at KEKB	1045
	Y. Funakoshi, K. Akai, K. Ebihara, K. Egawa, A. Enomoto, J.W. Flanagan, H. Fukuma, K. Furukawa, T. Furuya, J. Haba, S. Hiramatsu, T. Ieiri, N. Iida, H. Ikeda, T. Kageyama, S. Kamada, T. Kamitani, S. Kato, M. Kikuchi, E. Kikutani, H. Koiso, M. Masuzawa, T. Mimashi, A. Morita, T.T. Nakamura, H. Nakayama, Y. Ogawa, K. Ohmi, Y. Ohnishi, N. Ohuchi, K. Oide, M. Ono, M. Shimada, S. Stanic, M. Suetake, Y. Suetsugu, T. Sugimura, T. Suwada, M. Tawada, M. Tejima, M. Tobiyama, N. Tokuda, S. Uehara, S. Uno, N. Yamamoto, Y. Yamamoto, Y. Yano, K. Yokoyama, M. Yoshida, M. Yoshida, S.I. Yoshimoto KEK, Ibaraki F. Zimmermann CERN, Geneva
	We summarize the machine operation of KEKB during past one year. Progress for this period, causes of present performance limitations and future prospects are described.
RPPP003	Proposal of the Next Incarnation of Accelerator Test Facility at KEK for the International Linear Collider	874
	H. Hayano, S. Araki, H. Hayano, Y. Higashi, Y. Honda, K.-I. Kanazawa, K. Kubo, T. Kume, M. Kuriki, S. Kuroda, M. Masuzawa, T. Naito, T. Okugi, R. Sugahara, T. Tauchi, N. Terunuma, N. Toge, J.U. Urakawa, V.V. Vogel, H. Yamaoka, K. Yokoya KEK, Ibaraki I.V. Agapov, G.A. Blair, G.E. Boorman, J. Carter, C.D. Driouichi, M.T. Price Royal Holloway, University of London, Surrey D.A.-K. Angal-Kalinin, R. Appleby, J.K. Jones, A. Kalinin CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire P. Bambade LAL, Orsay K.L.F. Bane, A. Brachmann, T.M. Himel, T.W. Markiewicz, J. Nelson, N. Phinney, M.T.F. Pivi, T.O. Raubenheimer, M.C. Ross, R.E. Ruland, A. Seryi, C.M. Spencer, P. Tenenbaum, M. Woodley SLAC, Menlo Park, California S.T. Boogert, A. Liapine, S. Malton UCL, London H.-H. Braun, D. Schulte, F. Zimmermann CERN, Geneva P. Burrows, G.B. Christian, S. Molloy, G.R. White Queen Mary University of London, London J.Y. Choi, J.Y. Huang, H.-S. Kang, E.-S. Kim, S.H. Kim, I.S. Ko PAL, Pohang, Kyungbuk S. Danagoulian North Carolina A&T State University, Greensboro, North Carolina N. Delerue, D.F. Howell, A. Reichold, D. Urner OXFORDphysics, Oxford, Oxon J. Gao, W. Liu, G. Pei, J.Q. Wang IHEP Beijing, Beijing B.I. Grishanov, P.L. Logachev, F.V. Podgorny, V.I. Telnov BINP SB RAS, Novosibirsk J.G. Gronberg LLNL, Livermore, California Y. Iwashita, T. Mihara Kyoto ICR, Uji, Kyoto M. Kumada NIRS, Chiba-shi S. Mtingwa North Carolina University, Chapel Hill, North Carolina O. Napoly, J. Payet CEA/DSM/DAPNIA, Gif-sur-Yvette T.S. Sanuki, T.S. Suehara University of Tokyo, Tokyo T. Takahashi Hiroshima University, Higashi-Hiroshima E.T. Torrence University of Oregon, Eugene, Oregon N.J. Walker DESY, Hamburg
	The realization of the International Linear Collider (ILC) will require the ability to create and reliably maintain nanometer size beams. The ATF damping ring is the unique facility where ILC emittancies are possible. In this paper we present and evaluate the proposal to create a final focus facility at the ATF which, using compact final focus optics and an ILC-like bunch train, would be capable of achieving 35nm beam size. Such a facility would enable the development of beam diagnostics and tuning methods, as well as the training of young accelerator physicists.