Experimental tests of the injection Y on the University of Maryland Electron Ring

Walter, M.; Quinn, B.; Lamb, D. Q.; Bernal, S.; Godlove, Terry F.; Haber, I.; Holloway, Michael; Kishek, R. A.; Li, H.; O'Shea, P.G.; Reiser, M.

doi:10.1016/j.nima.2005.01.263

Cited by 4 publications

(1 citation statement)

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“…The pulsed injection system relies on a single pulsed dipole surrounding a wide glass gap, specially designed with a low number of conductors to minimize its inductance. Due to space limitations and the space charge forces in the most intense UMER beam, this configuration forces us to use a single quadrupole for both arms of the Yshape, sharing it between injection and circulation [18][19][20].…”

Section: Umer Designmentioning

confidence: 99%

Scaled Models: Space-Charge Dominated Electron Storage Rings

Kishek

Bai

Bernal

et al. 2007

Int. J. Mod. Phys. A

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New coherent radiation sources in the hard X-ray and Terahertz regimes promise exciting new developments in science, as previously dark areas of the spectrum are brightly illuminated. Ultra-short, ultra-bright radiation packets can probe the structure of matter, and image chemical and biological processes well beyond the present state of the art. Production of this coherent radiation, however, places an unprecedented challenge on the production and acceleration of high-quality electron beams. To deliver a nano-Coulomb of charge with an emittance of less than one micron, while transporting the beam through long sections of acceleration and compression, is the prerequisite for unlocking the gates of this promising new science. Using a low-energy electron storage ring, we deliberately enhance the space charge force while slowing down the time-scale to easily measurable levels so as to maximize our understanding of the particle dynamics necessary for producing bright beams. This project is funded by the US Dept. of Energy grant numbers D EFG02-94ER40855 and DEFG02-92ER54178, and by the US Dept. of Defense Office of Naval Research. 3838 Int. J. Mod. Phys. A 2007.22:3838-3851. Downloaded from www.worldscientific.com by UNIVERSITY OF PITTSBURGH on 02/03/15. For personal use only.

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Section: Umer Designmentioning

confidence: 99%

Scaled Models: Space-Charge Dominated Electron Storage Rings

Kishek

Bai

Bernal

et al. 2007

Int. J. Mod. Phys. A

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UMER: An analog computer for dynamics of swarms interacting via long-range forces

Kishek

Bai

Bernal

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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Space Charge Simulations of First-Turn Experiments on the University of Maryland Electron Ring (UMER)

Kishek¹,

Bernal²,

Cui³

et al. 2005

AIP Conference Proceedings

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Emerging particle accelerators require beam brightness and intensity surpassing traditional limits, bringing beams into the realm of nonneutral plasmas where particles interact primarily via long-range collective forces. Therefore the understanding of collective interactions is crucial for successful development of such applications as spallation neutron sources, high energy colliders, heavy ion inertial fusion, intense light sources, and free electron lasers. The University of Maryland Electron Ring (UMER), currently just completed, is designed to be a scaled model (3.6-m diameter) for exploring the dynamics of such intense beams. Using a 10 keV electron beam, other parameters are scaled to mimic those of much larger ion accelerators, except at much lower cost. An adjustable current in the 0.1-100 mA range provides a range of intensities unprecedented for a circular machine. Since UMER is primarily designed to serve as a research platform for beam physics, it is equipped with a vast array of diagnostics providing 6-D phase space measurements for effective comparison against computer codes. Simulations using the WARP code are presented which model recent experiments on transverse and longitudinal beam evolution during the first-turn of UMER.

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Experimental tests of the injection Y on the University of Maryland Electron Ring

Cited by 4 publications

References 1 publication

Scaled Models: Space-Charge Dominated Electron Storage Rings

Scaled Models: Space-Charge Dominated Electron Storage Rings

UMER: An analog computer for dynamics of swarms interacting via long-range forces

Space Charge Simulations of First-Turn Experiments on the University of Maryland Electron Ring (UMER)

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