First Circular

=========================================================================== First circular 8th International Conference on Quarks and Nuclear Physics November 13-17, 2018, Tsukuba, Japan http://www-conf.kek.jp/qnp2018/ Email: qnp2018(AT)ml.post.kek.jp ======================================= We would like to invite you to participate in the 8th International Conference on Quarks and Nuclear Physics. It will be held in Tsukuba, Japan on November 13-17, 2018. This conference follows the series of meetings previously held in Adelaide, Julich, Bloomington, Madrid, Beijing, Palaiseau, and Valparaiso. Experimentalists and theorists will discuss recent developments in the field of hadron and nuclear physics, and the following topics will be covered. Quark and gluon structure of hadrons: - parton distribution functions, generalized parton distributions, - transverse momentum distributions, high-energy hadron reactions, … Hadron spectroscopy: - heavy quark physics, exotics, N*, ... Hadron interactions and nuclear structure: - hypernuclear physics, kaonic nuclei, baryon interactions, ... Hot and cold dense matter: - quark-gluon plasma, color glass condensate, dense stars, - strong magnetic field, mesons in nuclear medium, hadronization, ... In addition to plenary sessions, parallel sessions will be organized in the above topics. A poster session will be also arranged. Young postdocs and students are especially welcome. Updated information will be announced on the conference web. We are looking forward to seeing you in Tsukuba in 2018. Shunzo Kumano and Shinya Sawada (KEK/J-PARC) on behalf of the local organizers Local Organizers: * Co-chair Akinobu Dote (KEK), Yuji Goto (RIKEN), Masayasu Harada (Nagoya Univ), Atsushi Hosaka (Osaka Univ), Kazunori Itakura (KEK), Hiroyuki Kamano (KEK), Shunzo Kumano (KEK,*), Osamu Morimatsu (KEK), Satoshi N. Nakamura (Tohoku Univ), Megumi Naruki (Kyoto Univ), Hiroyuki Noumi (Osaka Univ/KEK), Hiroaki Ohnishi (Tohoku Univ), Kyoichiro Ozawa (KEK), Hiroyuki Sako (JAEA), Fuminori Sakuma (RIKEN), Shinya Sawada (KEK,*), Hitoshi Takahashi (KEK), Toshiyuki Takahashi (KEK), Kazuhiro Tanaka (KEK), Kiyoshi Tanida (JAEA) ===========================================================================.

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Development of an Electron Gun for the Kek Positron Generator
Particle Accelerators, 1990, Vol. 27, pp. 145-149 © 1990 Gordon and Breach, Science Publishers, Inc. Reprints available directly from the publisher Printed in the United States of America Photocopying permitted by license only DEVELOPMENT OF AN ELECTRON GUN FOR THE KEK POSITRON GENERATOR HIDEKI IWATA, YUJIRO OOAWA*, SATOSIll OHSAWA*, HITOSHI KOBAYASHI*, MITUHIRO YOKOTA*, SHIGEKI FUKUDA* and AKIRA ASAMI* Ishikawajima-harima Heavy Industries Co., Ltd. * National Laboratory for High Energy Physics(KEK) 1-1 Oho, Tsukuba-shi, Ibaraki-ken, 305 Japan Abstract In the KEK Positron Generator, a semi-long pulsed beam (-40ns) has turned out to be suitable for effective positron injection into the PF storage ring. However, to use the semi-long pulsed beam, there was a problem concerning the cathode lifetime of the gun. Thus, a new gun has been developed with a dispenser cathode, Y-796(EIMAC); the characteristics of this gun have been investigated. This new gun has been used since October 1988 and has continued to produce constant current of about 12 A without having to exchange its cathode. Thus, the cathode lifetime has been remarkably improved. INTRODUCTION Positrons had so far been utilized only in the e+-e- colliding experiments of TRISTAN, which began in November 1986. Since 1988, however, it had started to use positrons also in the Photon Factory storage ring. It had been confinned that a positron beam with a width of -40 ns was suitable for the PF ring to reduce the injection time. t ,2,3 However, to use this semi-long pulsed beam, there was a problem regarding the cathode lifetime of the old gun, the cathode of which was an oxide-coated type.4 Therefore, a new gun with a dispenser cathode, Y-796(EIMAC), has been developed to achieve a long lifetime of the cathode and to obtain a larger anode current.
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Participants
PARTICIPANTS Abbott, Richard [email protected] California Institute of Technology Aldach, Jackie [email protected] Stanford Linear Accelerator Center Allen, Christopher [email protected] Los Alamos National Laboratory Allison, Stephanie [email protected] Stanford Linear Accelerator Center Allison, Trent [email protected] Thomas Jefferson National Accelerator Facility Anicic, Damir [email protected] Paul Scherrer Institut PSI Armstrong, Dennis [email protected] Isaac Newton Group Bacher, Reinhard [email protected] DESY Backman, Raymond H. [email protected] Mega Industries, L.L.C. Baek, Sulhee [email protected] Samsung Advanced Institute of Technology Baer, Ralph C. [email protected] GSI Darmstadt Bartlett, J. Frederick [email protected] Fermi National Accelerator Laboratory Bec, Matthieu [email protected] Gemini Observatory Bernstein, Dorel [email protected] Stanford Linear Accelerator Center Bevins, Brian [email protected] Thomas Jefferson National Accelerator Facility Bickley, Matthew [email protected] Thomas Jefferson National Accelerator Facility Biocca, Alan [email protected] Lawrence Berkeley National Laboratory Birke, Thomas [email protected] Los Alamos National Laboratory PARTICIPANTS 8th International Conference on Accelerator & Large Experimental Physics Control Systems Bjorklund, Eric [email protected] Spallation Neutron Source Blumer, Thomas [email protected] Paul Scherrer Institut PSI Bolkhovityanov, Dmitry [email protected] Budker Institute of Nuclear Physics Bolshakov, Timofei [email protected] Fermi National Accelerator Laboratory Bookwalter, Valerie [email protected] Thomas Jefferson National Accelerator Facility Boriskin, Victor [email protected] Kharkov Institute Physics & Technology Bork, Rolf [email protected] California Institute of Technology Brazier, John [email protected] Brazier Systems & Consultants Ltd.
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FROM KEK-PS to J-PARC Yoshishige Yamazaki, J-PARC, KEK & JAEA, Japan
FROM KEK-PS TO J-PARC Yoshishige Yamazaki, J-PARC, KEK & JAEA, Japan Abstract target are located in series. Every 3 s or so, depending The user experiments at J-PARC have just started. upon the usage of the main ring (MR), the beam is JPARC, which stands for Japan Proton Accelerator extracted from the RCS to be injected to the MR. Here, it Research Complex, comprises a 400-MeV linac (at is ramped up to 30 GeV at present and slowly extracted to present: 180 MeV, being upgraded), a 3-GeV rapid- Hadron Experimental Hall, where the kaon-production cycling synchrotron (RCS), and a 50-GeV main ring target is located. The experiments using the kaons are (MR) synchrotron, which is now in operation at 30 GeV. conducted there. Sometimes, it is fast extracted to The RCS will provide the muon-production target and the produce the neutrinos, which are sent to the Super spallation-neutron-production target with a beam power Kamiokande detector, which is located 295-km west of of 1 MW (at present: 120 kW) at a repetition rate of 25 the J-PARC site. In the future, we are conceiving the Hz. The muons and neutrons thus generated will be used possibility of constructing a test facility for an in materials science, life science, and others, including accelerator-driven nuclear waste transmutation system, industrial applications. The beams that are fast extracted which was shifted to Phase II. We are trying every effort from the MR generate neutrinos to be sent to the Super to get funding for this facility.
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Design Study of a Superconducting Insertion Quadrupole Magnet for the Large Hadron Collider
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics Large Hadron Collider Project LHC Project Report 75 DESIGN STUDY OF A SUPERCONDUCTING INSERTION QUADRUPOLE MAGNET FOR THE LARGE HADRON COLLIDER G. Kirby, R. Ostojic, and T. M. Taylor A. Yamamoto*, K. Tsuchiya*, N. Higashi*, T. Nakamoto*, T. Ogitsu*, N. Ohuchi*, T. Shintomi*, and A. Terashima* Abstract The conceptual design study of a high gradient superconducting insertion quadrupole magnet has been carried out in collaboration between KEK and CERN for the Large Hadron Collider (LHC) to be built at CERN. A model magnet design has been optimized to provide a nominal design field gradient of 240 T/m with a bore aperture of 70 mm and an operational field gradient of 225 T/m at 1.9 K under radiation environment with a beam energy deposit of several watts per meter in the superconducting coils. The design and its optimization process are discussed. LHC Division *National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki, 305, Japan ASC Pittsburg ‘96 Administrative Secretariat LHC Division CERN CH - 1211 Geneva 23 Switzerland Geneva, 12 November 1996 Design Study of a Superconducting Insertion Quadrupole Magnet for The Large Hadron Collider A. Yamamoto, K. Tsuchiya, N. Higashi, T. Nakamoto T. Ogitsu, N. Ohuchi, T. Shintomi, and A. Terashima National Laboratory [or High Energy Physics (KEK), Tsukuba, Ibaraki, 305, Japan G. Kirby*, R. Ostojic, and T. M. Taylor European Laboratory for Particle Physics (CERN), 23 Geneva, CH-1211, Switzerland Abstract---The conceptual design study of a 111. MODEL MAGNET DESIGN high gradient superconducting insertion quadrupole magnet has been carried out i n A.
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Development of Pulsed Neutron Sources パルス中性子源の開発
23/12/2020 Development of Pulsed Neutron Sources パルス中性子源の開発 Yoshiaki Kiyanagi 鬼柳善明 Nagoya University 名古屋大学工学研究科 1 History of Pulsed Neutron Sources （Change of plans from 1990） ESS SNS J-PARC (2022?) (2006) (2008) (1982) (1985) IPNS(1981) KENS(1980) 136MeV 1971 1959 300MeV 45MeV Hokkaido 1973 45MeV 2 Accelerator-driven Neutron Sources before KENS established in 1980 (Electron Acc.) （Except for nuclear data measurements） Hokkaido University The Gaerttner Linear Accelerator Center at Rensselaer Polytechnic Institute (RPI) Harwell Linac Linac at Laboratory of Nuclear Science at （opposite present ISIS) Tohoku University (LNS) （Present: Research Center for Electron Photon Science） 3 National Laboratory for High Energy Physics: KEK （Now, High Energy Accelerator Research Organization） Booster Synchrotron Utilization Facility KENS：KEK Neutron Source （KEK中性子源) Green area Proton therapy Muon https://www2.kek.jp/openhouse/1996/image/BSF/BSF7.gif 4 Coupling of Target-Moderator- Reflector research Late Prof. Watanabe performed experiments using a RI neutron source. スパレーション・パルス中性子源KENSとそれによる中性子散乱渡邊昇、佐々木寛、石川義和日本原子力学会誌 Vol. 23, No. 6 (1981) 389-398 5 Development of a Methane Cold Moderator at Hokkaido University Cylindrical shape Neutron Energy Spectra Spectra Energy Neutron moderator with a re-entrant hole Neutron Energy (eV) K. Inoue, N. Otomo, H. Iwasa and Y. Kiyanagi, J. Nuclear Science and Technology, Vol.11, No.5, pp.228-229, (1974) 6 KENS Neutron source Cold source Co-existence Thermal source The first cold neutron source set at a dedicated neutron scattering experimental facility. （There was an opinion a cold source was not necessary for neutron sources based on accelerators） A wise decision by Professors Watanabe and Ishikawa 渡邊昇, 石川義和: 物理学会誌, 39, 826 (1984).
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High Energy Accelerator Research Organization Research Institute of Japan’S Largest Accelerator Science That Unravels the Mysteries of Universe, Matter and Life
Inter-University Research Institute Corporation High Energy Accelerator Research Organization Research institute of Japan’s largest accelerator science that unravels the mysteries of universe, matter and life Director General Masanori Yamauchi Particle accelerator has played extremely important roles in progress of our understanding of nature, since its history started in 1930’s. It has provided essential methodology to study nuclei, elementary particles, condensed matter and even life sciences. Also, role of particle accelerators is really outstanding in their industrial and medical applications. There is no doubt that progress of par- ticle accelerators has substantially contributed to the modern science. Technologies of particle accelerators are still advancing rapidly, and drive frontier of science and applied research. KEK has established its credit as one of the leading accelerator laboratories in the world, and is making substantial contributions to the basic sciences in the various fields. It serves as one of the inter-university research organizations to offer opportunities of fron- tier research to scientists and students in the Japanese universities, and contributes to progress of scientific research in Japan. More than 20,000 scientists visit KEK every year from abroad to carry out research program extensively at the accelerator facilities here. This provides extraordinary opportunity especially to young scientists to compete with each other internationally. Accomplishments of those international collaborations include: confirmation of Kobayashi-Maskawa theory, discoveries of many exotic compound par- ticles and clarification of neutrino oscillation. Remarkable achievements have been obtained in material and life science as well, such as structure determination of novel superconductors and protein-drug complexes, and studies of novel properties induced by hydro- gen atoms, spins and electrons in condensed matter.
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Report of the Transition Crossing Mini-Workshop May 20-23,1996, Fermilab, Batavia, Illinois, USA
Fermi National Accelerator Laboratory FERMILAB-TM-1979 Report of the Transition Crossing Mini-Workshop May 20-23,1996, Fermilab, Batavia, Illinois, USA Philip Martin and Weiren Chou Fermi National Accelerator Laboratory P.O. Box 500, Batavia, Illinois 60510 AUG 2 7 July 1996 Operated by Universities Research Association Inc. under Contract No. DE-AC02-76CHO3000 with the United States Department of Energy ISSTKBUTION OF THIS DOCUMENT IS UNUMF1B) Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. Report of The Transition Crossing Mini-Workshop May 20-23, 1996, Fermilab, Batavia, Illinois, USA Philip Martin and Weiren Chou The Mini-Workshop on Transition Crossing was held from May 20 to 23, 1996, at Fermilab. This was the first in a series of mini-workshops on high intensity, high brightness hadron beams.
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BNL POSSIBILITIES* PHILIP H. PILE Brookhaven National Laboratory
BNL-49921 Submitted to JSPS-NSF Seminar: The Hyperon-Nucleon Interaction October 24-28,1993, Maui, Hawaii BNL POSSIBILITIES* PHILIP H. PILE Brookhaven National Laboratory \' • •••• 0 d ••"••"v'i Building 91 IB r,. - Upton, New York 11973-5000, U.S.A. ^ » J ABSTRACT The Brookhaven National Laboratory AGS facility provides the intense kaon and pion beams necessary for detailed studies of the hyperon-nucleon interaction. A description of available beams is provided along with a summary °f me current and future physics program. 1. The BNL Facility for High Energy and Nuclear Physics 1.1 The Panicle Accelerators The Brookhaven National Laboratory High Energy and Nuclear Physics experimental programs are based on a 30 GeV Alternating Gradient Synchrotron (AGS). Particles are injected into the AGS using a 1.5 GeV, 7.5 Hz Booster Synchrotron. All ion species from protons (including polarized protons) to gold can be accelerated; however, only protons and gold ions are currently in use. Injectors into the Booster include a 200 MeV proton Linac and two 15 MeV MP tandem accelerators for heavy tons. Toward the end of the decade beams from the AGS will be injected into the Relativistic Heavy Ion Collider (RHIC). The RHIC facility, currently under construction, will allow beam-beam collisions with energies up to 250 GeV/c x Z/A for each beam. Initial experiments with RHIC will search for the quark gluon plasma using 100 GeV/c/nucleon gold on gold--'") TeV in the center-of-mass. In addition to the heavy ion program at RHIC, programs are being developed that make use of proton-proton collisions, including polarized protons.
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Measurement of Neutron Electric Dipole Moment
Measurement of Neutron Electric Dipole Moment Y. Arimoto, K. Asahi, H. Fujioka, H. Funahashi, M. Hino, T. Ino, H. Iwase, Y. Iwashita, Y. Kamiya, T. Kawai, N. Kimura, M. Kitaguchi, Y. Kiyanagi, S. Komamiya, K. Mishima, S. Muto, T. Ogitsu, K. Sakai, T. Shima, H. M. Shimizu, K. Taketani, M. Utsuro, S. Yamashita, A. Yoshimi, and T. Yoshioka (NOP Collaboration) 1 Executive Summary We propose to measure the electric dipole moment (EDM) of ultracold neutrons (UCNs) with the experimental sensitivity of 6 £ 10¡28 e¢cm by constructing a UCN source driven by the pulsed proton beam at J-PARC. The sensitivity can be achieved by suppressing the systematic errors using downsized UCN storage volume. In order to improve the statistics in the smaller volume, we improve a time-focusing optics to transfer the instantaneously dense UCN, which can be obtained at a short-pulse spallation neutron source, to a remote place without losing the density. The proton beam of the J-PARC is almost ideal for this strategy. Please refer to the summary of the J-PARC UCN Taskforce [1] in which the availability of the proton beam and the candidates of the location were discussed in 2009. 2 Introduction Attempts to measure the electric dipole moment (EDM) of neutrons have played an important role in the search for the new physics beyond the standard model of the elementary particles. Discovery of a non-zero value of the EDM unambiguously signals the breaking of the time reversal invariance, which leads to a signi¯cant progress. The breaking of time reversal invariance is equivalent to the breaking of the CP symmetry assuming the CPT invariance in quantum ¯eld theory.
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A Brief History and Review of Accelerators
A BRIEF HISTORY AND REVIEW OF ACCELERATORS P.J. Bryant CERN, Geneva, Switzerland ABSTRACT The history of accelerators is traced from three separate roots, through a rapid development to the present day. The well-known Livingston chart is used to illustrate how spectacular this development has been with, on average, an increase of one and a half orders of magnitude in energy per decade, since the early thirties. Several present-day accelerators are reviewed along with plans and hopes for the future. 1 . INTRODUCTION High-energy physics research has always been the driving force behind the development of particle accelerators. They started life in physics research laboratories in glass envelopes sealed with varnish and putty with shining electrodes and frequent discharges, but they have long since outgrown this environment to become large-scale facilities offering services to large communities. Although the particle physics community is still the main group, they have been joined by others of whom the synchrotron light users are the largest and fastest growing. There is also an increasing interest in radiation therapy in the medical world and industry has been a long-time user of ion implantation and many other applications. Consequently accelerators now constitute a field of activity in their own right with professional physicists and engineers dedicated to their study, construction and operation. This paper will describe the early history of accelerators, review the important milestones in their development up to the present day and take a preview of future plans and hopes. 2 . HISTORICAL ROOTS The early history of accelerators can be traced from three separate roots.
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APAC Apace - First Asian Particle Accelerator Conference
Forward vision at KEK APAC apace - first Asian Particle Accelerator Conference quality. They consist of a large KEK research. This includes the US/ t was a milestone event in the number of accelerator units, each Japan collaboration programme in history of Asian accelerator science unit being a combination of RF power particle and nuclear physics experi when four hundred specialists from sources (klystrons), a power distribu ments, as well as the development of all over Asia assembled at the tion system and accelerating struc accelerator technologies, the UK/ Japanese KEK laboratory in Tsukuba tures. Japan programme in neutron re from 23 - 27 March for the First Asian A series of prototype tests and the search, and collaborations in Europe Particle Accelerator Conference - latest simulation study indicate good represented by ATLAS/LHC and APAC98. prospects for a rapid payoff in HERA. Although it was the first such powerful klystrons. New schemes With this ambitious and wide- conference, accelerator science and have been developed for efficient RF ranging programme, KEK is a major technology is not new in Asia. Low power distribution. High-precision player in world physics, with facilities energy accelerators - high-voltage machining and fabrication techniques in Japan attracting many scientists generators, electron linear for the accelerating structure have from overseas, while Japanese accelerators and cyclotrons - have been considerably improved in recent specialists have major roles in been quite common in many years. Prototypes can sustain a high important projects, particularly in the countries. However the profile of the enough acceleration field and, at the US and in Europe.. Asian accelerator community has same time, minimize adverse effects greatly changed since the 1980s, of wake fields from beam bunches.
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Search for H-Dibaryon with a Large Acceptance Hyperon Spectrometer
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