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HIGHLIGHTED ARTICLES

Model-based optimization of tapered free-electron lasers

Alan Mak, Francesca Curbis, and Sverker Werin

Phys. Rev. ST Accel. Beams 18, 040702 (2015) - Published 23 April, 2015

The FEL energy extraction efficiency can be enhanced by a tapered undulator with optimized taper profile.

Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model

G. F. Dugan, K. G. Sonnad, R. Cimino, T. Ishibashi, and F. Schäfers

Phys. Rev. ST Accel. Beams 18, 040704 (2015) - Published 30 April, 2015

Measurements at BESSY-II are presented together with an analytical model.

Emittance conservation by tailored focusing profiles in a plasma accelerator

I. Dornmair, K. Floettmann, and A. R. Maier

Phys. Rev. ST Accel. Beams 18, 041302 (2015) - Published 30 April, 2015

Numerical simulation approach for plasma accelerators simplifying beam optics, reducing sensitivity to positioning jitter, and enabling beam emittance from the plasma to the subsequent drift section.

Influence of space-charge fields on the cooling process of muon beams

Diktys Stratakis, Robert B. Palmer, and David P. Grote

Phys. Rev. ST Accel. Beams 18, 044201 (2015) - Published 7 April, 2015

At high muon intensity the efficiency of ionization cooling can be improved by increasing the rf gradient.

Numerical studies of the behavior of ionized residual gas in an energy recovering linac

Gisela Pöplau, Ursula van Rienen, and Atoosa Meseck

Phys. Rev. ST Accel. Beams 18, 044401 (2015) - Published 29 April, 2015

The behavior of ion clouds and their interaction with bunch trains in energy recovering linacs is simulated numerically including the effects of clearing gaps and clearing electrodes.

ARTICLES

Low- and Intermediate-Energy Accelerators

U28+-intensity record applying a H2-gas stripper cell

Winfried Barth, Aleksey Adonin, Christoph E. Düllmann, Manuel Heilmann, Ralph Hollinger, Egon Jäger, Jadambaa Khuyagbaatar, Joerg Krier, Paul Scharrer, Hartmut Vormann, and Alexander Yakushev

Phys. Rev. ST Accel. Beams 18, 040101 (2015) - Published 7 April, 2015

Synchrotron Radiation and Free-Electron Lasers

High gradient rf gun studies of CsBr photocathodes

Theodore Vecchione, Juan R. Maldonado, Stephen Gierman, Jeff Corbett, Nick Hartmann, Piero A. Pianetta, Lambertus Hesselink, and John F. Schmerge

Phys. Rev. ST Accel. Beams 18, 040701 (2015) - Published 3 April, 2015

Model-based optimization of tapered free-electron lasers

Alan Mak, Francesca Curbis, and Sverker Werin

Phys. Rev. ST Accel. Beams 18, 040702 (2015) - Published 23 April, 2015

The FEL energy extraction efficiency can be enhanced by a tapered undulator with optimized taper profile.

Development and operating experience of a short-period superconducting undulator at the Advanced Photon Source

Y. Ivanyushenkov et al.

Phys. Rev. ST Accel. Beams 18, 040703 (2015) - Published 29 April, 2015

Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model

G. F. Dugan, K. G. Sonnad, R. Cimino, T. Ishibashi, and F. Schäfers

Phys. Rev. ST Accel. Beams 18, 040704 (2015) - Published 30 April, 2015

Measurements at BESSY-II are presented together with an analytical model.

High-Energy Accelerators and Colliders

Measurement of electron trapping in the Cornell Electron Storage Ring

M. G. Billing, J. Conway, E. E. Cowan, J. A. Crittenden, W. Hartung, J. Lanzoni, Y. Li, C. S. Shill, J. P. Sikora, and K. G. Sonnad

Phys. Rev. ST Accel. Beams 18, 041001 (2015) - Published 2 April, 2015

Thermomechanical response of Large Hadron Collider collimators to proton and ion beam impacts

Marija Cauchi, R. W. Assmann, A. Bertarelli, F. Carra, F. Cerutti, L. Lari, S. Redaelli, P. Mollicone, and N. Sammut

Phys. Rev. ST Accel. Beams 18, 041002 (2015) - Published 9 April, 2015

Compact Linear Collider drive beam phase stabilization simulations

A. Gerbershagen, D. Schulte, and P. N. Burrows

Phys. Rev. ST Accel. Beams 18, 041003 (2015) - Published 13 April, 2015

Design, prototyping, and testing of a compact superconducting double quarter wave crab cavity

Binping Xiao, Luís Alberty, Sergey Belomestnykh, Ilan Ben-Zvi, Rama Calaga, Chris Cullen, Ofelia Capatina, Lee Hammons, Zenghai Li, Carlos Marques, John Skaritka, Silvia Verdú-Andres, and Qiong Wu

Phys. Rev. ST Accel. Beams 18, 041004 (2015) - Published 28 April, 2015

New Acceleration Techniques

Relativistic self-focusing of intense laser beam in thermal collisionless quantum plasma with ramped density profile

S. Zare, E. Yazdani, S. Rezaee, A. Anvari, and R. Sadighi-Bonabi

Phys. Rev. ST Accel. Beams 18, 041301 (2015) - Published 20 April, 2015

Emittance conservation by tailored focusing profiles in a plasma accelerator

I. Dornmair, K. Floettmann, and A. R. Maier

Phys. Rev. ST Accel. Beams 18, 041302 (2015) - Published 30 April, 2015

Numerical simulation approach for plasma accelerators simplifying beam optics, reducing sensitivity to positioning jitter, and enabling beam emittance from the plasma to the subsequent drift section.

Radio Frequency Calculations and Technology

High-Q operation of superconducting rf cavities: Potential impact of thermocurrents on the rf surface resistance

J.-M. Vogt, O. Kugeler, and J. Knobloch

Phys. Rev. ST Accel. Beams 18, 042001 (2015) - Published 10 April, 2015

Beam Control, Diagnostics, and Feedback

Advanced simulations of optical transition and diffraction radiation

T. Aumeyr, M. G. Billing, L. M. Bobb, B. Bolzon, E. Bravin, P. Karataev, K. Kruchinin, T. Lefevre, and S. Mazzoni

Phys. Rev. ST Accel. Beams 18, 042801 (2015) - Published 3 April, 2015

X-ray Fresnel diffractometry for ultralow emittance diagnostics of next generation synchrotron light sources

Mitsuhiro Masaki, Shiro Takano, Masaru Takao, and Yoshito Shimosaki

Phys. Rev. ST Accel. Beams 18, 042802 (2015) - Published 20 April, 2015

Particle-Beam Sources

Measurements of copper and cesium telluride cathodes in a radio-frequency photoinjector

Eduard Prat, Simona Bettoni, Hans-Heinrich Braun, Romain Ganter, and Thomas Schietinger

Phys. Rev. ST Accel. Beams 18, 043401 (2015) - Published 9 April, 2015

Theory and simulation of backbombardment in single-cell thermionic-cathode electron guns

J. P. Edelen, S. G. Biedron, J. R. Harris, S. V. Milton, and J. W. Lewellen

Phys. Rev. ST Accel. Beams 18, 043402 (2015) - Published 15 April, 2015

Single-Particle Dynamics

Dynamics of shielding of a moving charged particle in a confined electron plasma

Andrey Elizarov and Vladimir Litvinenko

Phys. Rev. ST Accel. Beams 18, 044001 (2015) - Published 9 April, 2015

Low-Energy, Multiple-Particle Dynamics

Influence of space-charge fields on the cooling process of muon beams

Diktys Stratakis, Robert B. Palmer, and David P. Grote

Phys. Rev. ST Accel. Beams 18, 044201 (2015) - Published 7 April, 2015

At high muon intensity the efficiency of ionization cooling can be improved by increasing the rf gradient.

Relativistic, Multiple-Particle Dynamics

Numerical studies of the behavior of ionized residual gas in an energy recovering linac

Gisela Pöplau, Ursula van Rienen, and Atoosa Meseck

Phys. Rev. ST Accel. Beams 18, 044401 (2015) - Published 29 April, 2015

The behavior of ion clouds and their interaction with bunch trains in energy recovering linacs is simulated numerically including the effects of clearing gaps and clearing electrodes.

Applications

Simulation of a beam rotation system for a spallation source

Tibor Reiss, Davide Reggiani, Mike Seidel, Vadim Talanov, and Michael Wohlmuther

Phys. Rev. ST Accel. Beams 18, 044701 (2015) - Published 2 April, 2015

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