Conveners
Accelerator: Physics, Performance, R&D and Future Facilities: 1
- Eugene Levichev
Accelerator: Physics, Performance, R&D and Future Facilities: 2
- Jie GAO (IHEP)
- Katsunobu Oide (High Energy Accelerator Research Organization (JP))
Accelerator: Physics, Performance, R&D and Future Facilities: 3
- Katsunobu Oide (High Energy Accelerator Research Organization (JP))
Accelerator: Physics, Performance, R&D and Future Facilities: 4
- Jie GAO (IHEP)
Accelerator: Physics, Performance, R&D and Future Facilities: 5
- Lia Merminga (TRIUMF)
Jie GAO
(IHEP)
04/08/2016, 09:00
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Being the next generation of circular collider, the CEPC project will be installed in a tunnel of at least 54 km circumference. Using electron-positron collisions, the CEPC project provides high precision measurements for Higgs physics and electroweak physics. The CEPC could be upgraded to SPPC, which can explore the physics landscape at o(100) TeV proton collisions. Other collision...
Dr
Anton Bogomyagkov
(Budker Institute of Nuclear Physics (RU))
04/08/2016, 09:20
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Invention of the crab waist collision scheme gave birth to several projects of future colliders with luminosity by one or two orders of magnitude higher than in previous particle factories. The biggest influence in luminosity gain comes from extremely small vertical beta function, which enhances nonlinear chromaticity of the interaction region lattice. Therefore, all the projects have to...
Katsunobu Oide
(High Energy Accelerator Research Organization (JP))
04/08/2016, 09:40
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Design of beam optics will be presented for the FCC-ee double-ring collider. The main characteristics are 45 to 175 GeV beam energy, 100 km circumference with two IPs/ring, 30 mrad crossing angle at the IP, crab-waist scheme with local chromaticity correction system, and "tapering" of the magnets along with the local beam energy. An asymmetric layout near the interaction region suppresses the...
Roberto Kersevan
(CERN)
04/08/2016, 10:00
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The FCC-hh is an accelerator with unique vacuum issues. Naively it could be thought of as a beefed-up LHC, but a careful scrutiny of its technical specifications immediately shows that it presents distinctive features which are nowhere to be found in the present LHC or even in its funded upgrade, HiLumi-LHC. Its peculiarity stems from the fact that FCC-hh is characterized by extremely high...
Paolo Fessia
(CERN)
04/08/2016, 10:20
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
High Field Magnets is one of the priority R&D clearly identified in the Update of the European Strategy for Particle Physics, as well as the HEPAP Accelerator R&D Subpanel. CERN, together with several collaborating institutes in the Member States, is responding with a broadly structured and progressive approach to increasing field levels.
The activities in the domain of high field accelerator...
Prof.
Michael Syphers
(Northern Illinois University)
04/08/2016, 10:40
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
This talk will provide an overview of the currently envisaged landscape of charge particle accelerators at the energy and intensity frontiers to explore particle physics beyond the standard model via 1-100 TeV-scale lepton and hadron colliders and multi-Megawatt proton accelerators for short- and long-baseline neutrino experiments. The particle beam physics, associated technological challenges...
Shekhar Mishra
(Fermilab)
04/08/2016, 11:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Proton Improvement Plan-II (PIP-II) is the centerpiece of Fermilabโs plan for upgrading the accelerator complex to establish the leading facility in the world for particle physics research based on intense proton beams. PIP-II has been developed to provide 1.2 MW of proton beam power at the start of operations of the Long Baseline Neutrino Experiment (LBNE), while simultaneously providing a...
Tadashi Koseki
(KEK)
04/08/2016, 11:50
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The J-PARC accelerator comprises an H- linac, a 3-GeV Rapid-Cycling Synchrotron (RCS), a 30-GeV slow cycling Main Ring synchrotron (MR). The MR has two beam extraction systems; a fast extraction for beam delivery to the neutrino beam line of the Tokai-to-Kamioka (T2K) experiment, and a slow extraction for beam delivery to particle and nuclear physics experiments in the hadron experimental...
Gianluigi Arduini
(CERN)
04/08/2016, 12:10
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The presentation summaries the current baseline configuration of the HL-LHC and highlights the most recent changes. Following the end of the EU funded design study the HL-LHC project published the main technical choices in form a Preliminary Design report. After the publication of the PDR, the design work was further updated in form of a Technical Design Report in 2015 and, following a cost...
Mary Convery
(Fermilab)
04/08/2016, 12:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Current status, upgrades and outlook of the Fermilab's accelerator complex will be presented. Expectations of beam delivery for the neutrino experiments and intensity frontier research for the next decade will be discussed.
Nickolai Muchnoi
04/08/2016, 12:50
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Direct measurement of energy spectrum of backscattered laser photons allows to determine the average energy of beam electrons. With HPGe detector the mean energy could be measured with relative accuracy about 30ppm in absolute scale for beam energies below 2 GeV. This report includes an overview of beam energy measurement systems for VEPP-4M, BEPC-II and VEPP-2000 colliders. Some ideas about...
Enrico Bagli
(Universita di Ferrara & INFN (IT))
04/08/2016, 13:10
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Simulation of orientational coherent effects via Geant4 Beam manipulation of high- and very-high-energy particle beams is a hot topic in accelerator physics. Coherent effects of ultra-relativistic particles in bent crystals allow the steering of particle trajectories thanks to the strong electrical field generated between atomic planes. Recently, a collimation experiment with bent crystals was...
Vladimir Shiltsev
(Fermilab)
04/08/2016, 14:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The future of the world-wide HEP community critically depends on the feasibility of
possible post-LHC colliders. The concept of the feasibility is complex and includes at least three factors: feasibility of energy, feasibility of luminosiity and feasibility of cost. The talk will give on overview of all current options for post-LHC colliders from such perspective (ILC, CLIC, Muon Collider,...
Vladimir Tishchenko
(BNL)
04/08/2016, 14:50
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The muon storage ring for the g-2 experiment at Fermilab poses optimization challenges that couple directly to the statistical and systematic uncertainties of the measurement. The statistical uncertainty in the Muon g-2 Experiment at Fermilab is coupled to the number of measured positrons emitted by muons stored in a weak-focusing magnetic storage ring. The frequency that the ring is filled...
Auralee Edelen
(Colorado State University)
04/08/2016, 15:10
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Particle accelerators are host to myriad nonlinear and complex physical phenomena, involve a multitude of interacting systems, are subject to tight performance demands, and should be able to run for extended periods of time with minimal interruption. Machine learning and artificial intelligence constitute a versatile set of techniques that are particularly well-suited to modeling, control, and...
Sergey Belomestnykh
(Fermilab)
04/08/2016, 15:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Superconducting magnets and radio frequency cavities are cornerstone technologies for future high energy particle accelerators. In this talk I will briefly discuss state of the art of these two technologies, outline how they enable future generation of accelerators for particle physics and discuss challenges.
Dmitry Shwartz
(BINP)
04/08/2016, 15:50
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
VEPP-2000 is electron-positron collider exploiting the novel concept of round colliding beams. After three seasons of data taking in the whole energy range of 160-1000 MeV per beam it was stopped in 2013 for injection chain upgrade. The linking to the new BINP source of intensive beams together with booster synchrotron modernization provides the drastic luminosity gain at top energy of VEPP-2000.
Prof.
QING QIN
(IHEP)
04/08/2016, 16:10
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The Beijing Electron Positron Collider (BEPC) was upgraded as a double-ring factory-like charm-tau collider (BEPCII) with the design luminosity of 1*10^{33}cm^{-2}s^{-1} at 1.89 GeV. Being finished construction and passed the national test and check in 2009, the BEPCII has been operated for high energy physics studies for more than 6 years. The luminosity at the design energy has been steadily...
Steven Boyd
(University of Warwick)
05/08/2016, 09:00
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Muon beams of low emittance provide the basis for the intense, well characterised
neutrino beams of the Neutrino Factory and for lepton-antilepton collisions at energies of up to several TeV at the Muon Collider. The international Muon Ionization Cooling Experiment (MICE) will demonstrate ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the...
Mario Antonelli
(Istituto Nazionale Fisica Nucleare Frascati (IT))
05/08/2016, 09:20
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Muon beams are customarily obtained via K/ฯ decays produced in proton interaction on target. In this paper we investigate the possibility to produce low emittance muon beams from electronโpositron collisions at centre-of-mass energy just above the ฮผ+ฮผ- production threshold with maximal beam energy asymmetry, corresponding to a positron beam of about 45 GeV interacting on electrons on target. ...
Alexey Kochemirovskiy
(The University of Chicago)
05/08/2016, 09:40
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
RF cavities are essential components of almost every particle accelerator. Among other limitations, cavity gradients are restricted by occasional sparking inside the cavity, or RF breakdown. It has been shown that presence of external static magnetic field aggravates the influence of breakdown on performance of the cavity. This problem can arise in designs of muon ionization cooling channel,...
Maxim Bryzgunov
(Budker INP)
05/08/2016, 10:00
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Results of calculations of high voltage electron cooling process in NICA collider are presented. Two independent electron cooling systems in the collider are intended to increase luminosity in space charge dominated regime. The model of cooling calculations was tested on experimental results, obtained in COSY synchrotron, which is equipped with 2 MeV electron cooler, produced by Budker INP....
Max Klein
(University of Liverpool (GB))
05/08/2016, 10:20
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The design and recent developments are presented for a Large Hadron Electron Collider (LHeC) combining the HL-LHC hadron (p,A) beams with a new electron beam of about 60 GeV energy achieved in a racetrack energy recovery linac configuration. This electron accelerator is also considered as a default for the electron-hadron configuration of the FCC currently under study. The talk will focus on...
Dr
Chandrashekhara Bhat
(Fermilab)
05/08/2016, 10:40
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Fermilab is committed to making a substantial increase in the average beam power delivered to the neutrino and muon programs via upgrades to the accelerator complex. Many of the upgrades to the existing injector accelerators are being carried out under the Proton Improvement Plan (PIP). Proton Improvement Plan โII proposes to build an 800 MeV superconducting LINAC, adding to the existing...
Jim Brau
(University of Oregon (US))
06/08/2016, 11:15
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
ILC Parameters Joint Working Group
The ILC Technical Design Report documents the design of a 500
GeV linear collider, but does not specify the centre-of-mass energy steps of operation
for the collider. The ILC Parameters Joint Working Group has studied possible running
scenarios and the evolution of physics outcomes based on a realistic estimate of the
real time accumulation of integrated...
Philip Burrows
(Oxford University),
Steffen Doebert
(CERN)
06/08/2016, 11:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The Compact Linear Collider (CLIC) project is exploring the possibility of constructing a multi-TeV linear electron-positron collider for high-energy frontier physics studies beyond the LHC era. The CLIC concept is based on high-gradient normal-conducting accelerating structures. The RF power for the acceleration of the colliding beams is produced by a two-beam acceleration scheme, where power...
Philip Burrows
(Oxford University)
06/08/2016, 11:45
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Ultra-low latency beam-based digital feedbacks have been developed by the Feedback On Nanosecond Timescales (FONT) Group and tested at the Accelerator Test Facility (ATF2) at KEK in a programme aimed at beam stabilisation at the nanometre level at the ATF2 final focus. This is aimed at beam stabilisation for future electron-positron linear colliders, as well as in electron linacs for FEL light...
Yasuchika Yamamoto
(KEK)
06/08/2016, 12:00
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
The high power test for STF-2 cryomodule with twelve cavities has completed successfully in 2015. It became clear the average accelerating gradient was 30.3 MV/m, eight cavities achieved above 31.5 MV/m as the ILC specification, and three cavities had the significant performance degradation by heavy field emission due to the additional clean room work in the STF tunnel. As the following next...
Prof.
Akira Yamamoto
(KEK, CERN, and LCC)
06/08/2016, 12:15
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Progress in the ILC accelerator design and technical R&Ds is overviewed, and technical prospect for the project realization is discussed. Two key technologies of "nano-beam" and "superconducting RF" have been much progressed and demonstrated, at the KEK Accelerator Test Facility and at the European Free-electron Laser (XFEL) projected, respectively. Based on these technical achievements, the...
James Rosenzweig
(UCLA)
06/08/2016, 12:30
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Recent studies of the performance of radio-frequency (RF) copper structures operated at cryogenic temperatures have shown a dramatic increase in the maximum surface electric field that may be reached. We propose to utilize this development to enable a new generation of photoinjectors operated at cryogenic temperatures that may attain, through enhancement of the launch field at the...
Laura Bandiera
(Universita di Ferrara & INFN (IT))
06/08/2016, 12:45
Accelerator: Physics, Performance, R&D and Future Accelerator Facilities
Oral Presentation
Channeling and coherent interaction of charged particles in crystals are known since the 60s and used as a tool for material analysis by low-energy ion channeling and for the generation of linearly polarized ฮณ-beams through coherent bremsstrahlung at electron accelerators, such as the MAinzer MIcrotron (MAMI) in Germany and the Jefferson Lab in USA.
If the crystal is bent, channeled...
